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Commit 0e9b07e5 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
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perf sched: Use perf_tool as ancestor 

So that we can remove all the globals.

Before:

   text	   data	    bss	    dec	    hex	filename
1586833	 110368	1438600	3135801	 2fd939	/tmp/oldperf

After:

   text	   data	    bss	    dec	    hex	filename
1629329	  93568	 848328	2571225	 273bd9	/root/bin/perf

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-oph40vikij0crjz4eyapneov@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 4218e673
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Showing with 562 additions and 574 deletions
tools/perf/builtin-sched.c
View file @ 0e9b07e5
......@@ -23,26 +23,12 @@
#include <pthread.h>
#include <math.h>
static const char *input_name;
static char default_sort_order[] = "avg, max, switch, runtime";
static const char *sort_order = default_sort_order;
static int profile_cpu = -1;
#define PR_SET_NAME 15 /* Set process name */
#define MAX_CPUS 4096
static u64 run_measurement_overhead;
static u64 sleep_measurement_overhead;
#define COMM_LEN 20
#define SYM_LEN 129
#define MAX_PID 65536
static unsigned long nr_tasks;
struct sched_atom;
struct task_desc {
......@@ -80,44 +66,6 @@ struct sched_atom {
struct task_desc *wakee;
};
static struct task_desc *pid_to_task[MAX_PID];
static struct task_desc **tasks;
static pthread_mutex_t start_work_mutex = PTHREAD_MUTEX_INITIALIZER;
static u64 start_time;
static pthread_mutex_t work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER;
static unsigned long nr_run_events;
static unsigned long nr_sleep_events;
static unsigned long nr_wakeup_events;
static unsigned long nr_sleep_corrections;
static unsigned long nr_run_events_optimized;
static unsigned long targetless_wakeups;
static unsigned long multitarget_wakeups;
static u64 cpu_usage;
static u64 runavg_cpu_usage;
static u64 parent_cpu_usage;
static u64 runavg_parent_cpu_usage;
static unsigned long nr_runs;
static u64 sum_runtime;
static u64 sum_fluct;
static u64 run_avg;
static unsigned int replay_repeat = 10;
static unsigned long nr_timestamps;
static unsigned long nr_unordered_timestamps;
static unsigned long nr_state_machine_bugs;
static unsigned long nr_context_switch_bugs;
static unsigned long nr_events;
static unsigned long nr_lost_chunks;
static unsigned long nr_lost_events;
#define TASK_STATE_TO_CHAR_STR "RSDTtZX"
enum thread_state {
......@@ -149,11 +97,169 @@ struct work_atoms {
typedef int (*sort_fn_t)(struct work_atoms *, struct work_atoms *);
static struct rb_root atom_root, sorted_atom_root;
struct trace_switch_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char prev_comm[16];
u32 prev_pid;
u32 prev_prio;
u64 prev_state;
char next_comm[16];
u32 next_pid;
u32 next_prio;
};
struct trace_runtime_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char comm[16];
u32 pid;
u64 runtime;
u64 vruntime;
};
struct trace_wakeup_event {
u32 size;
static u64 all_runtime;
static u64 all_count;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char comm[16];
u32 pid;
u32 prio;
u32 success;
u32 cpu;
};
struct trace_fork_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char parent_comm[16];
u32 parent_pid;
char child_comm[16];
u32 child_pid;
};
struct trace_migrate_task_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char comm[16];
u32 pid;
u32 prio;
u32 cpu;
};
struct perf_sched;
struct trace_sched_handler {
int (*switch_event)(struct perf_sched *sched,
struct trace_switch_event *event,
struct machine *machine,
struct event_format *tp_format,
struct perf_sample *sample);
int (*runtime_event)(struct perf_sched *sched,
struct trace_runtime_event *event,
struct machine *machine,
struct perf_sample *sample);
int (*wakeup_event)(struct perf_sched *sched,
struct trace_wakeup_event *event,
struct machine *machine,
struct event_format *tp_format,
struct perf_sample *sample);
int (*fork_event)(struct perf_sched *sched,
struct trace_fork_event *event,
struct event_format *tp_format);
int (*migrate_task_event)(struct perf_sched *sched,
struct trace_migrate_task_event *event,
struct machine *machine,
struct perf_sample *sample);
};
struct perf_sched {
struct perf_tool tool;
const char *input_name;
const char *sort_order;
unsigned long nr_tasks;
struct task_desc *pid_to_task[MAX_PID];
struct task_desc **tasks;
const struct trace_sched_handler *tp_handler;
pthread_mutex_t start_work_mutex;
pthread_mutex_t work_done_wait_mutex;
int profile_cpu;
/*
* Track the current task - that way we can know whether there's any
* weird events, such as a task being switched away that is not current.
*/
int max_cpu;
u32 curr_pid[MAX_CPUS];
struct thread *curr_thread[MAX_CPUS];
char next_shortname1;
char next_shortname2;
unsigned int replay_repeat;
unsigned long nr_run_events;
unsigned long nr_sleep_events;
unsigned long nr_wakeup_events;
unsigned long nr_sleep_corrections;
unsigned long nr_run_events_optimized;
unsigned long targetless_wakeups;
unsigned long multitarget_wakeups;
unsigned long nr_runs;
unsigned long nr_timestamps;
unsigned long nr_unordered_timestamps;
unsigned long nr_state_machine_bugs;
unsigned long nr_context_switch_bugs;
unsigned long nr_events;
unsigned long nr_lost_chunks;
unsigned long nr_lost_events;
u64 run_measurement_overhead;
u64 sleep_measurement_overhead;
u64 start_time;
u64 cpu_usage;
u64 runavg_cpu_usage;
u64 parent_cpu_usage;
u64 runavg_parent_cpu_usage;
u64 sum_runtime;
u64 sum_fluct;
u64 run_avg;
u64 all_runtime;
u64 all_count;
u64 cpu_last_switched[MAX_CPUS];
struct rb_root atom_root, sorted_atom_root;
struct list_head sort_list, cmp_pid;
};
static u64 get_nsecs(void)
{
......@@ -164,13 +270,13 @@ static u64 get_nsecs(void)
return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
}
static void burn_nsecs(u64 nsecs)
static void burn_nsecs(struct perf_sched *sched, u64 nsecs)
{
u64 T0 = get_nsecs(), T1;
do {
T1 = get_nsecs();
} while (T1 + run_measurement_overhead < T0 + nsecs);
} while (T1 + sched->run_measurement_overhead < T0 + nsecs);
}
static void sleep_nsecs(u64 nsecs)
......@@ -183,24 +289,24 @@ static void sleep_nsecs(u64 nsecs)
nanosleep(&ts, NULL);
}
static void calibrate_run_measurement_overhead(void)
static void calibrate_run_measurement_overhead(struct perf_sched *sched)
{
u64 T0, T1, delta, min_delta = 1000000000ULL;
int i;
for (i = 0; i < 10; i++) {
T0 = get_nsecs();
burn_nsecs(0);
burn_nsecs(sched, 0);
T1 = get_nsecs();
delta = T1-T0;
min_delta = min(min_delta, delta);
}
run_measurement_overhead = min_delta;
sched->run_measurement_overhead = min_delta;
printf("run measurement overhead: %" PRIu64 " nsecs\n", min_delta);
}
static void calibrate_sleep_measurement_overhead(void)
static void calibrate_sleep_measurement_overhead(struct perf_sched *sched)
{
u64 T0, T1, delta, min_delta = 1000000000ULL;
int i;
......@@ -213,7 +319,7 @@ static void calibrate_sleep_measurement_overhead(void)
min_delta = min(min_delta, delta);
}
min_delta -= 10000;
sleep_measurement_overhead = min_delta;
sched->sleep_measurement_overhead = min_delta;
printf("sleep measurement overhead: %" PRIu64 " nsecs\n", min_delta);
}
......@@ -246,8 +352,8 @@ static struct sched_atom *last_event(struct task_desc *task)
return task->atoms[task->nr_events - 1];
}
static void
add_sched_event_run(struct task_desc *task, u64 timestamp, u64 duration)
static void add_sched_event_run(struct perf_sched *sched, struct task_desc *task,
u64 timestamp, u64 duration)
{
struct sched_atom *event, *curr_event = last_event(task);
......@@ -256,7 +362,7 @@ add_sched_event_run(struct task_desc *task, u64 timestamp, u64 duration)
* to it:
*/
if (curr_event && curr_event->type == SCHED_EVENT_RUN) {
nr_run_events_optimized++;
sched->nr_run_events_optimized++;
curr_event->duration += duration;
return;
}
......@@ -266,12 +372,11 @@ add_sched_event_run(struct task_desc *task, u64 timestamp, u64 duration)
event->type = SCHED_EVENT_RUN;
event->duration = duration;
nr_run_events++;
sched->nr_run_events++;
}
static void
add_sched_event_wakeup(struct task_desc *task, u64 timestamp,
struct task_desc *wakee)
static void add_sched_event_wakeup(struct perf_sched *sched, struct task_desc *task,
u64 timestamp, struct task_desc *wakee)
{
struct sched_atom *event, *wakee_event;
......@@ -281,11 +386,11 @@ add_sched_event_wakeup(struct task_desc *task, u64 timestamp,
wakee_event = last_event(wakee);
if (!wakee_event || wakee_event->type != SCHED_EVENT_SLEEP) {
targetless_wakeups++;
sched->targetless_wakeups++;
return;
}
if (wakee_event->wait_sem) {
multitarget_wakeups++;
sched->multitarget_wakeups++;
return;
}
......@@ -294,89 +399,89 @@ add_sched_event_wakeup(struct task_desc *task, u64 timestamp,
wakee_event->specific_wait = 1;
event->wait_sem = wakee_event->wait_sem;
nr_wakeup_events++;
sched->nr_wakeup_events++;
}
static void
add_sched_event_sleep(struct task_desc *task, u64 timestamp,
u64 task_state __maybe_unused)
static void add_sched_event_sleep(struct perf_sched *sched, struct task_desc *task,
u64 timestamp, u64 task_state __maybe_unused)
{
struct sched_atom *event = get_new_event(task, timestamp);
event->type = SCHED_EVENT_SLEEP;
nr_sleep_events++;
sched->nr_sleep_events++;
}
static struct task_desc *register_pid(unsigned long pid, const char *comm)
static struct task_desc *register_pid(struct perf_sched *sched,
unsigned long pid, const char *comm)
{
struct task_desc *task;
BUG_ON(pid >= MAX_PID);
task = pid_to_task[pid];
task = sched->pid_to_task[pid];
if (task)
return task;
task = zalloc(sizeof(*task));
task->pid = pid;
task->nr = nr_tasks;
task->nr = sched->nr_tasks;
strcpy(task->comm, comm);
/*
* every task starts in sleeping state - this gets ignored
* if there's no wakeup pointing to this sleep state:
*/
add_sched_event_sleep(task, 0, 0);
add_sched_event_sleep(sched, task, 0, 0);
pid_to_task[pid] = task;
nr_tasks++;
tasks = realloc(tasks, nr_tasks*sizeof(struct task_task *));
BUG_ON(!tasks);
tasks[task->nr] = task;
sched->pid_to_task[pid] = task;
sched->nr_tasks++;
sched->tasks = realloc(sched->tasks, sched->nr_tasks * sizeof(struct task_task *));
BUG_ON(!sched->tasks);
sched->tasks[task->nr] = task;
if (verbose)
printf("registered task #%ld, PID %ld (%s)\n", nr_tasks, pid, comm);
printf("registered task #%ld, PID %ld (%s)\n", sched->nr_tasks, pid, comm);
return task;
}
static void print_task_traces(void)
static void print_task_traces(struct perf_sched *sched)
{
struct task_desc *task;
unsigned long i;
for (i = 0; i < nr_tasks; i++) {
task = tasks[i];
for (i = 0; i < sched->nr_tasks; i++) {
task = sched->tasks[i];
printf("task %6ld (%20s:%10ld), nr_events: %ld\n",
task->nr, task->comm, task->pid, task->nr_events);
}
}
static void add_cross_task_wakeups(void)
static void add_cross_task_wakeups(struct perf_sched *sched)
{
struct task_desc *task1, *task2;
unsigned long i, j;
for (i = 0; i < nr_tasks; i++) {
task1 = tasks[i];
for (i = 0; i < sched->nr_tasks; i++) {
task1 = sched->tasks[i];
j = i + 1;
if (j == nr_tasks)
if (j == sched->nr_tasks)
j = 0;
task2 = tasks[j];
add_sched_event_wakeup(task1, 0, task2);
task2 = sched->tasks[j];
add_sched_event_wakeup(sched, task1, 0, task2);
}
}
static void process_sched_event(struct task_desc *this_task __maybe_unused,
struct sched_atom *atom)
static void perf_sched__process_event(struct perf_sched *sched,
struct sched_atom *atom)
{
int ret = 0;
switch (atom->type) {
case SCHED_EVENT_RUN:
burn_nsecs(atom->duration);
burn_nsecs(sched, atom->duration);
break;
case SCHED_EVENT_SLEEP:
if (atom->wait_sem)
......@@ -439,14 +544,23 @@ static u64 get_cpu_usage_nsec_self(int fd)
return runtime;
}
struct sched_thread_parms {
struct task_desc *task;
struct perf_sched *sched;
};
static void *thread_func(void *ctx)
{
struct task_desc *this_task = ctx;
struct sched_thread_parms *parms = ctx;
struct task_desc *this_task = parms->task;
struct perf_sched *sched = parms->sched;
u64 cpu_usage_0, cpu_usage_1;
unsigned long i, ret;
char comm2[22];
int fd;
free(parms);
sprintf(comm2, ":%s", this_task->comm);
prctl(PR_SET_NAME, comm2);
fd = self_open_counters();
......@@ -455,16 +569,16 @@ static void *thread_func(void *ctx)
again:
ret = sem_post(&this_task->ready_for_work);
BUG_ON(ret);
ret = pthread_mutex_lock(&start_work_mutex);
ret = pthread_mutex_lock(&sched->start_work_mutex);
BUG_ON(ret);
ret = pthread_mutex_unlock(&start_work_mutex);
ret = pthread_mutex_unlock(&sched->start_work_mutex);
BUG_ON(ret);
cpu_usage_0 = get_cpu_usage_nsec_self(fd);
for (i = 0; i < this_task->nr_events; i++) {
this_task->curr_event = i;
process_sched_event(this_task, this_task->atoms[i]);
perf_sched__process_event(sched, this_task->atoms[i]);
}
cpu_usage_1 = get_cpu_usage_nsec_self(fd);
......@@ -472,15 +586,15 @@ static void *thread_func(void *ctx)
ret = sem_post(&this_task->work_done_sem);
BUG_ON(ret);
ret = pthread_mutex_lock(&work_done_wait_mutex);
ret = pthread_mutex_lock(&sched->work_done_wait_mutex);
BUG_ON(ret);
ret = pthread_mutex_unlock(&work_done_wait_mutex);
ret = pthread_mutex_unlock(&sched->work_done_wait_mutex);
BUG_ON(ret);
goto again;
}
static void create_tasks(void)
static void create_tasks(struct perf_sched *sched)
{
struct task_desc *task;
pthread_attr_t attr;
......@@ -492,128 +606,129 @@ static void create_tasks(void)
err = pthread_attr_setstacksize(&attr,
(size_t) max(16 * 1024, PTHREAD_STACK_MIN));
BUG_ON(err);
err = pthread_mutex_lock(&start_work_mutex);
err = pthread_mutex_lock(&sched->start_work_mutex);
BUG_ON(err);
err = pthread_mutex_lock(&work_done_wait_mutex);
err = pthread_mutex_lock(&sched->work_done_wait_mutex);
BUG_ON(err);
for (i = 0; i < nr_tasks; i++) {
task = tasks[i];
for (i = 0; i < sched->nr_tasks; i++) {
struct sched_thread_parms *parms = malloc(sizeof(*parms));
BUG_ON(parms == NULL);
parms->task = task = sched->tasks[i];
parms->sched = sched;
sem_init(&task->sleep_sem, 0, 0);
sem_init(&task->ready_for_work, 0, 0);
sem_init(&task->work_done_sem, 0, 0);
task->curr_event = 0;
err = pthread_create(&task->thread, &attr, thread_func, task);
err = pthread_create(&task->thread, &attr, thread_func, parms);
BUG_ON(err);
}
}
static void wait_for_tasks(void)
static void wait_for_tasks(struct perf_sched *sched)
{
u64 cpu_usage_0, cpu_usage_1;
struct task_desc *task;
unsigned long i, ret;
start_time = get_nsecs();
cpu_usage = 0;
pthread_mutex_unlock(&work_done_wait_mutex);
sched->start_time = get_nsecs();
sched->cpu_usage = 0;
pthread_mutex_unlock(&sched->work_done_wait_mutex);
for (i = 0; i < nr_tasks; i++) {
task = tasks[i];
for (i = 0; i < sched->nr_tasks; i++) {
task = sched->tasks[i];
ret = sem_wait(&task->ready_for_work);
BUG_ON(ret);
sem_init(&task->ready_for_work, 0, 0);
}
ret = pthread_mutex_lock(&work_done_wait_mutex);
ret = pthread_mutex_lock(&sched->work_done_wait_mutex);
BUG_ON(ret);
cpu_usage_0 = get_cpu_usage_nsec_parent();
pthread_mutex_unlock(&start_work_mutex);
pthread_mutex_unlock(&sched->start_work_mutex);
for (i = 0; i < nr_tasks; i++) {
task = tasks[i];
for (i = 0; i < sched->nr_tasks; i++) {
task = sched->tasks[i];
ret = sem_wait(&task->work_done_sem);
BUG_ON(ret);
sem_init(&task->work_done_sem, 0, 0);
cpu_usage += task->cpu_usage;
sched->cpu_usage += task->cpu_usage;
task->cpu_usage = 0;
}
cpu_usage_1 = get_cpu_usage_nsec_parent();
if (!runavg_cpu_usage)
runavg_cpu_usage = cpu_usage;
runavg_cpu_usage = (runavg_cpu_usage*9 + cpu_usage)/10;
if (!sched->runavg_cpu_usage)
sched->runavg_cpu_usage = sched->cpu_usage;
sched->runavg_cpu_usage = (sched->runavg_cpu_usage * 9 + sched->cpu_usage) / 10;
parent_cpu_usage = cpu_usage_1 - cpu_usage_0;
if (!runavg_parent_cpu_usage)
runavg_parent_cpu_usage = parent_cpu_usage;
runavg_parent_cpu_usage = (runavg_parent_cpu_usage*9 +
parent_cpu_usage)/10;
sched->parent_cpu_usage = cpu_usage_1 - cpu_usage_0;
if (!sched->runavg_parent_cpu_usage)
sched->runavg_parent_cpu_usage = sched->parent_cpu_usage;
sched->runavg_parent_cpu_usage = (sched->runavg_parent_cpu_usage * 9 +
sched->parent_cpu_usage)/10;
ret = pthread_mutex_lock(&start_work_mutex);
ret = pthread_mutex_lock(&sched->start_work_mutex);
BUG_ON(ret);
for (i = 0; i < nr_tasks; i++) {
task = tasks[i];
for (i = 0; i < sched->nr_tasks; i++) {
task = sched->tasks[i];
sem_init(&task->sleep_sem, 0, 0);
task->curr_event = 0;
}
}
static void run_one_test(void)
static void run_one_test(struct perf_sched *sched)
{
u64 T0, T1, delta, avg_delta, fluct;
T0 = get_nsecs();
wait_for_tasks();
wait_for_tasks(sched);
T1 = get_nsecs();
delta = T1 - T0;
sum_runtime += delta;
nr_runs++;
sched->sum_runtime += delta;
sched->nr_runs++;
avg_delta = sum_runtime / nr_runs;
avg_delta = sched->sum_runtime / sched->nr_runs;
if (delta < avg_delta)
fluct = avg_delta - delta;
else
fluct = delta - avg_delta;
sum_fluct += fluct;
if (!run_avg)
run_avg = delta;
run_avg = (run_avg*9 + delta)/10;
sched->sum_fluct += fluct;
if (!sched->run_avg)
sched->run_avg = delta;
sched->run_avg = (sched->run_avg * 9 + delta) / 10;
printf("#%-3ld: %0.3f, ",
nr_runs, (double)delta/1000000.0);
printf("#%-3ld: %0.3f, ", sched->nr_runs, (double)delta / 1000000.0);
printf("ravg: %0.2f, ",
(double)run_avg/1e6);
printf("ravg: %0.2f, ", (double)sched->run_avg / 1e6);
printf("cpu: %0.2f / %0.2f",
(double)cpu_usage/1e6, (double)runavg_cpu_usage/1e6);
(double)sched->cpu_usage / 1e6, (double)sched->runavg_cpu_usage / 1e6);
#if 0
/*
* rusage statistics done by the parent, these are less
* accurate than the sum_exec_runtime based statistics:
* accurate than the sched->sum_exec_runtime based statistics:
*/
printf(" [%0.2f / %0.2f]",
(double)parent_cpu_usage/1e6,
(double)runavg_parent_cpu_usage/1e6);
(double)sched->parent_cpu_usage/1e6,
(double)sched->runavg_parent_cpu_usage/1e6);
#endif
printf("\n");
if (nr_sleep_corrections)
printf(" (%ld sleep corrections)\n", nr_sleep_corrections);
nr_sleep_corrections = 0;
if (sched->nr_sleep_corrections)
printf(" (%ld sleep corrections)\n", sched->nr_sleep_corrections);
sched->nr_sleep_corrections = 0;
}
static void test_calibrations(void)
static void test_calibrations(struct perf_sched *sched)
{
u64 T0, T1;
T0 = get_nsecs();
burn_nsecs(1e6);
burn_nsecs(sched, 1e6);
T1 = get_nsecs();
printf("the run test took %" PRIu64 " nsecs\n", T1 - T0);
......@@ -643,115 +758,9 @@ do { \
FILL_FIELD(ptr, common_tgid, event, data); \
} while (0)
struct trace_switch_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char prev_comm[16];
u32 prev_pid;
u32 prev_prio;
u64 prev_state;
char next_comm[16];
u32 next_pid;
u32 next_prio;
};
struct trace_runtime_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char comm[16];
u32 pid;
u64 runtime;
u64 vruntime;
};
struct trace_wakeup_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char comm[16];
u32 pid;
u32 prio;
u32 success;
u32 cpu;
};
struct trace_fork_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char parent_comm[16];
u32 parent_pid;
char child_comm[16];
u32 child_pid;
};
struct trace_migrate_task_event {
u32 size;
u16 common_type;
u8 common_flags;
u8 common_preempt_count;
u32 common_pid;
u32 common_tgid;
char comm[16];
u32 pid;
u32 prio;
u32 cpu;
};
struct trace_sched_handler {
int (*switch_event)(struct trace_switch_event *event,
struct machine *machine,
struct event_format *tp_format,
struct perf_sample *sample);
int (*runtime_event)(struct trace_runtime_event *event,
struct machine *machine,
struct perf_sample *sample);
int (*wakeup_event)(struct trace_wakeup_event *event,
struct machine *machine,
struct event_format *tp_format,
struct perf_sample *sample);
int (*fork_event)(struct trace_fork_event *event,
struct event_format *tp_format);
int (*migrate_task_event)(struct trace_migrate_task_event *event,
struct machine *machine,
struct perf_sample *sample);
};
static int
replay_wakeup_event(struct trace_wakeup_event *wakeup_event,
replay_wakeup_event(struct perf_sched *sched,
struct trace_wakeup_event *wakeup_event,
struct machine *machine __maybe_unused,
struct event_format *event, struct perf_sample *sample)
{
......@@ -761,22 +770,19 @@ replay_wakeup_event(struct trace_wakeup_event *wakeup_event,
printf("sched_wakeup event %p\n", event);
printf(" ... pid %d woke up %s/%d\n",
wakeup_event->common_pid,
wakeup_event->comm,
wakeup_event->pid);
wakeup_event->common_pid, wakeup_event->comm, wakeup_event->pid);
}
waker = register_pid(wakeup_event->common_pid, "<unknown>");
wakee = register_pid(wakeup_event->pid, wakeup_event->comm);
waker = register_pid(sched, wakeup_event->common_pid, "<unknown>");
wakee = register_pid(sched, wakeup_event->pid, wakeup_event->comm);
add_sched_event_wakeup(waker, sample->time, wakee);
add_sched_event_wakeup(sched, waker, sample->time, wakee);
return 0;
}
static u64 cpu_last_switched[MAX_CPUS];
static int
replay_switch_event(struct trace_switch_event *switch_event,
replay_switch_event(struct perf_sched *sched,
struct trace_switch_event *switch_event,
struct machine *machine __maybe_unused,
struct event_format *event,
struct perf_sample *sample)
......@@ -792,7 +798,7 @@ replay_switch_event(struct trace_switch_event *switch_event,
if (cpu >= MAX_CPUS || cpu < 0)
return 0;
timestamp0 = cpu_last_switched[cpu];
timestamp0 = sched->cpu_last_switched[cpu];
if (timestamp0)
delta = timestamp - timestamp0;
else
......@@ -810,20 +816,19 @@ replay_switch_event(struct trace_switch_event *switch_event,
delta);
}
prev = register_pid(switch_event->prev_pid, switch_event->prev_comm);
next = register_pid(switch_event->next_pid, switch_event->next_comm);
prev = register_pid(sched, switch_event->prev_pid, switch_event->prev_comm);
next = register_pid(sched, switch_event->next_pid, switch_event->next_comm);
cpu_last_switched[cpu] = timestamp;
sched->cpu_last_switched[cpu] = timestamp;
add_sched_event_run(prev, timestamp, delta);
add_sched_event_sleep(prev, timestamp, switch_event->prev_state);
add_sched_event_run(sched, prev, timestamp, delta);
add_sched_event_sleep(sched, prev, timestamp, switch_event->prev_state);
return 0;
}
static int
replay_fork_event(struct trace_fork_event *fork_event,
replay_fork_event(struct perf_sched *sched, struct trace_fork_event *fork_event,
struct event_format *event)
{
if (verbose) {
......@@ -831,25 +836,17 @@ replay_fork_event(struct trace_fork_event *fork_event,
printf("... parent: %s/%d\n", fork_event->parent_comm, fork_event->parent_pid);
printf("... child: %s/%d\n", fork_event->child_comm, fork_event->child_pid);
}
register_pid(fork_event->parent_pid, fork_event->parent_comm);
register_pid(fork_event->child_pid, fork_event->child_comm);
register_pid(sched, fork_event->parent_pid, fork_event->parent_comm);
register_pid(sched, fork_event->child_pid, fork_event->child_comm);
return 0;
}
static struct trace_sched_handler replay_ops = {
.wakeup_event = replay_wakeup_event,
.switch_event = replay_switch_event,
.fork_event = replay_fork_event,
};
struct sort_dimension {
const char *name;
sort_fn_t cmp;
struct list_head list;
};
static LIST_HEAD(cmp_pid);
static int
thread_lat_cmp(struct list_head *list, struct work_atoms *l, struct work_atoms *r)
{
......@@ -918,7 +915,7 @@ __thread_latency_insert(struct rb_root *root, struct work_atoms *data,
rb_insert_color(&data->node, root);
}
static int thread_atoms_insert(struct thread *thread)
static int thread_atoms_insert(struct perf_sched *sched, struct thread *thread)
{
struct work_atoms *atoms = zalloc(sizeof(*atoms));
if (!atoms) {
......@@ -928,11 +925,12 @@ static int thread_atoms_insert(struct thread *thread)
atoms->thread = thread;
INIT_LIST_HEAD(&atoms->work_list);
__thread_latency_insert(&atom_root, atoms, &cmp_pid);
__thread_latency_insert(&sched->atom_root, atoms, &sched->cmp_pid);
return 0;
}
static int latency_fork_event(struct trace_fork_event *fork_event __maybe_unused,
static int latency_fork_event(struct perf_sched *sched __maybe_unused,
struct trace_fork_event *fork_event __maybe_unused,
struct event_format *event __maybe_unused)
{
/* should insert the newcomer */
......@@ -1014,7 +1012,8 @@ add_sched_in_event(struct work_atoms *atoms, u64 timestamp)
}
static int
latency_switch_event(struct trace_switch_event *switch_event,
latency_switch_event(struct perf_sched *sched,
struct trace_switch_event *switch_event,
struct machine *machine,
struct event_format *event __maybe_unused,
struct perf_sample *sample)
......@@ -1027,8 +1026,8 @@ latency_switch_event(struct trace_switch_event *switch_event,
BUG_ON(cpu >= MAX_CPUS || cpu < 0);
timestamp0 = cpu_last_switched[cpu];
cpu_last_switched[cpu] = timestamp;
timestamp0 = sched->cpu_last_switched[cpu];
sched->cpu_last_switched[cpu] = timestamp;
if (timestamp0)
delta = timestamp - timestamp0;
else
......@@ -1042,11 +1041,11 @@ latency_switch_event(struct trace_switch_event *switch_event,
sched_out = machine__findnew_thread(machine, switch_event->prev_pid);
sched_in = machine__findnew_thread(machine, switch_event->next_pid);
out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid);
out_events = thread_atoms_search(&sched->atom_root, sched_out, &sched->cmp_pid);
if (!out_events) {
if (thread_atoms_insert(sched_out))
if (thread_atoms_insert(sched, sched_out))
return -1;
out_events = thread_atoms_search(&atom_root, sched_out, &cmp_pid);
out_events = thread_atoms_search(&sched->atom_root, sched_out, &sched->cmp_pid);
if (!out_events) {
pr_err("out-event: Internal tree error");
return -1;
......@@ -1055,11 +1054,11 @@ latency_switch_event(struct trace_switch_event *switch_event,
if (add_sched_out_event(out_events, sched_out_state(switch_event), timestamp))
return -1;
in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid);
in_events = thread_atoms_search(&sched->atom_root, sched_in, &sched->cmp_pid);
if (!in_events) {
if (thread_atoms_insert(sched_in))
if (thread_atoms_insert(sched, sched_in))
return -1;
in_events = thread_atoms_search(&atom_root, sched_in, &cmp_pid);
in_events = thread_atoms_search(&sched->atom_root, sched_in, &sched->cmp_pid);
if (!in_events) {
pr_err("in-event: Internal tree error");
return -1;
......@@ -1077,19 +1076,20 @@ latency_switch_event(struct trace_switch_event *switch_event,
}
static int
latency_runtime_event(struct trace_runtime_event *runtime_event,
latency_runtime_event(struct perf_sched *sched,
struct trace_runtime_event *runtime_event,
struct machine *machine, struct perf_sample *sample)
{
struct thread *thread = machine__findnew_thread(machine, runtime_event->pid);
struct work_atoms *atoms = thread_atoms_search(&atom_root, thread, &cmp_pid);
struct work_atoms *atoms = thread_atoms_search(&sched->atom_root, thread, &sched->cmp_pid);
u64 timestamp = sample->time;
int cpu = sample->cpu;
BUG_ON(cpu >= MAX_CPUS || cpu < 0);
if (!atoms) {
if (thread_atoms_insert(thread))
if (thread_atoms_insert(sched, thread))
return -1;
atoms = thread_atoms_search(&atom_root, thread, &cmp_pid);
atoms = thread_atoms_search(&sched->atom_root, thread, &sched->cmp_pid);
if (!atoms) {
pr_debug("in-event: Internal tree error");
return -1;
......@@ -1103,7 +1103,8 @@ latency_runtime_event(struct trace_runtime_event *runtime_event,
}
static int
latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
latency_wakeup_event(struct perf_sched *sched,
struct trace_wakeup_event *wakeup_event,
struct machine *machine,
struct event_format *event __maybe_unused,
struct perf_sample *sample)
......@@ -1118,11 +1119,11 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
return 0;
wakee = machine__findnew_thread(machine, wakeup_event->pid);
atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid);
atoms = thread_atoms_search(&sched->atom_root, wakee, &sched->cmp_pid);
if (!atoms) {
if (thread_atoms_insert(wakee))
if (thread_atoms_insert(sched, wakee))
return -1;
atoms = thread_atoms_search(&atom_root, wakee, &cmp_pid);
atoms = thread_atoms_search(&sched->atom_root, wakee, &sched->cmp_pid);
if (!atoms) {
pr_debug("wakeup-event: Internal tree error");
return -1;
......@@ -1140,12 +1141,12 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
* one CPU, or are only looking at only one, so don't
* make useless noise.
*/
if (profile_cpu == -1 && atom->state != THREAD_SLEEPING)
nr_state_machine_bugs++;
if (sched->profile_cpu == -1 && atom->state != THREAD_SLEEPING)
sched->nr_state_machine_bugs++;
nr_timestamps++;
sched->nr_timestamps++;
if (atom->sched_out_time > timestamp) {
nr_unordered_timestamps++;
sched->nr_unordered_timestamps++;
return 0;
}
......@@ -1155,7 +1156,8 @@ latency_wakeup_event(struct trace_wakeup_event *wakeup_event,
}
static int
latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
latency_migrate_task_event(struct perf_sched *sched,
struct trace_migrate_task_event *migrate_task_event,
struct machine *machine, struct perf_sample *sample)
{
u64 timestamp = sample->time;
......@@ -1166,16 +1168,16 @@ latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
/*
* Only need to worry about migration when profiling one CPU.
*/
if (profile_cpu == -1)
if (sched->profile_cpu == -1)
return 0;
migrant = machine__findnew_thread(machine, migrate_task_event->pid);
atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid);
atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid);
if (!atoms) {
if (thread_atoms_insert(migrant))
if (thread_atoms_insert(sched, migrant))
return -1;
register_pid(migrant->pid, migrant->comm);
atoms = thread_atoms_search(&atom_root, migrant, &cmp_pid);
register_pid(sched, migrant->pid, migrant->comm);
atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid);
if (!atoms) {
pr_debug("migration-event: Internal tree error");
return -1;
......@@ -1189,23 +1191,15 @@ latency_migrate_task_event(struct trace_migrate_task_event *migrate_task_event,
atom = list_entry(atoms->work_list.prev, struct work_atom, list);
atom->sched_in_time = atom->sched_out_time = atom->wake_up_time = timestamp;
nr_timestamps++;
sched->nr_timestamps++;
if (atom->sched_out_time > timestamp)
nr_unordered_timestamps++;
sched->nr_unordered_timestamps++;
return 0;
}
static struct trace_sched_handler lat_ops = {
.wakeup_event = latency_wakeup_event,
.switch_event = latency_switch_event,
.runtime_event = latency_runtime_event,
.fork_event = latency_fork_event,
.migrate_task_event = latency_migrate_task_event,
};
static void output_lat_thread(struct work_atoms *work_list)
static void output_lat_thread(struct perf_sched *sched, struct work_atoms *work_list)
{
int i;
int ret;
......@@ -1219,8 +1213,8 @@ static void output_lat_thread(struct work_atoms *work_list)
if (!strcmp(work_list->thread->comm, "swapper"))
return;
all_runtime += work_list->total_runtime;
all_count += work_list->nb_atoms;
sched->all_runtime += work_list->total_runtime;
sched->all_count += work_list->nb_atoms;
ret = printf(" %s:%d ", work_list->thread->comm, work_list->thread->pid);
......@@ -1246,11 +1240,6 @@ static int pid_cmp(struct work_atoms *l, struct work_atoms *r)
return 0;
}
static struct sort_dimension pid_sort_dimension = {
.name = "pid",
.cmp = pid_cmp,
};
static int avg_cmp(struct work_atoms *l, struct work_atoms *r)
{
u64 avgl, avgr;
......@@ -1272,11 +1261,6 @@ static int avg_cmp(struct work_atoms *l, struct work_atoms *r)
return 0;
}
static struct sort_dimension avg_sort_dimension = {
.name = "avg",
.cmp = avg_cmp,
};
static int max_cmp(struct work_atoms *l, struct work_atoms *r)
{
if (l->max_lat < r->max_lat)
......@@ -1287,11 +1271,6 @@ static int max_cmp(struct work_atoms *l, struct work_atoms *r)
return 0;
}
static struct sort_dimension max_sort_dimension = {
.name = "max",
.cmp = max_cmp,
};
static int switch_cmp(struct work_atoms *l, struct work_atoms *r)
{
if (l->nb_atoms < r->nb_atoms)
......@@ -1302,11 +1281,6 @@ static int switch_cmp(struct work_atoms *l, struct work_atoms *r)
return 0;
}
static struct sort_dimension switch_sort_dimension = {
.name = "switch",
.cmp = switch_cmp,
};
static int runtime_cmp(struct work_atoms *l, struct work_atoms *r)
{
if (l->total_runtime < r->total_runtime)
......@@ -1317,28 +1291,38 @@ static int runtime_cmp(struct work_atoms *l, struct work_atoms *r)
return 0;
}
static struct sort_dimension runtime_sort_dimension = {
.name = "runtime",
.cmp = runtime_cmp,
};
static struct sort_dimension *available_sorts[] = {
&pid_sort_dimension,
&avg_sort_dimension,
&max_sort_dimension,
&switch_sort_dimension,
&runtime_sort_dimension,
};
#define NB_AVAILABLE_SORTS (int)(sizeof(available_sorts) / sizeof(struct sort_dimension *))
static LIST_HEAD(sort_list);
static int sort_dimension__add(const char *tok, struct list_head *list)
{
int i;
size_t i;
static struct sort_dimension avg_sort_dimension = {
.name = "avg",
.cmp = avg_cmp,
};
static struct sort_dimension max_sort_dimension = {
.name = "max",
.cmp = max_cmp,
};
static struct sort_dimension pid_sort_dimension = {
.name = "pid",
.cmp = pid_cmp,
};
static struct sort_dimension runtime_sort_dimension = {
.name = "runtime",
.cmp = runtime_cmp,
};
static struct sort_dimension switch_sort_dimension = {
.name = "switch",
.cmp = switch_cmp,
};
struct sort_dimension *available_sorts[] = {
&pid_sort_dimension,
&avg_sort_dimension,
&max_sort_dimension,
&switch_sort_dimension,
&runtime_sort_dimension,
};
for (i = 0; i < NB_AVAILABLE_SORTS; i++) {
for (i = 0; i < ARRAY_SIZE(available_sorts); i++) {
if (!strcmp(available_sorts[i]->name, tok)) {
list_add_tail(&available_sorts[i]->list, list);
......@@ -1349,31 +1333,28 @@ static int sort_dimension__add(const char *tok, struct list_head *list)
return -1;
}
static void setup_sorting(void);
static void sort_lat(void)
static void perf_sched__sort_lat(struct perf_sched *sched)
{
struct rb_node *node;
for (;;) {
struct work_atoms *data;
node = rb_first(&atom_root);
node = rb_first(&sched->atom_root);
if (!node)
break;
rb_erase(node, &atom_root);
rb_erase(node, &sched->atom_root);
data = rb_entry(node, struct work_atoms, node);
__thread_latency_insert(&sorted_atom_root, data, &sort_list);
__thread_latency_insert(&sched->sorted_atom_root, data, &sched->sort_list);
}
}
static struct trace_sched_handler *trace_handler;
static int process_sched_wakeup_event(struct perf_tool *tool __maybe_unused,
static int process_sched_wakeup_event(struct perf_tool *tool,
struct event_format *event,
struct perf_sample *sample,
struct machine *machine)
{
struct perf_sched *sched = container_of(tool, struct perf_sched, tool);
void *data = sample->raw_data;
struct trace_wakeup_event wakeup_event;
int err = 0;
......@@ -1386,27 +1367,15 @@ static int process_sched_wakeup_event(struct perf_tool *tool __maybe_unused,
FILL_FIELD(wakeup_event, success, event, data);
FILL_FIELD(wakeup_event, cpu, event, data);
if (trace_handler->wakeup_event)
err = trace_handler->wakeup_event(&wakeup_event, machine, event, sample);
if (sched->tp_handler->wakeup_event)
err = sched->tp_handler->wakeup_event(sched, &wakeup_event, machine, event, sample);
return err;
}
/*
* Track the current task - that way we can know whether there's any
* weird events, such as a task being switched away that is not current.
*/
static int max_cpu;
static u32 curr_pid[MAX_CPUS] = { [0 ... MAX_CPUS-1] = -1 };
static struct thread *curr_thread[MAX_CPUS];
static char next_shortname1 = 'A';
static char next_shortname2 = '0';
static int
map_switch_event(struct trace_switch_event *switch_event,
map_switch_event(struct perf_sched *sched,
struct trace_switch_event *switch_event,
struct machine *machine,
struct event_format *event __maybe_unused,
struct perf_sample *sample)
......@@ -1419,11 +1388,11 @@ map_switch_event(struct trace_switch_event *switch_event,
BUG_ON(this_cpu >= MAX_CPUS || this_cpu < 0);
if (this_cpu > max_cpu)
max_cpu = this_cpu;
if (this_cpu > sched->max_cpu)
sched->max_cpu = this_cpu;
timestamp0 = cpu_last_switched[this_cpu];
cpu_last_switched[this_cpu] = timestamp;
timestamp0 = sched->cpu_last_switched[this_cpu];
sched->cpu_last_switched[this_cpu] = timestamp;
if (timestamp0)
delta = timestamp - timestamp0;
else
......@@ -1437,37 +1406,37 @@ map_switch_event(struct trace_switch_event *switch_event,
sched_out = machine__findnew_thread(machine, switch_event->prev_pid);
sched_in = machine__findnew_thread(machine, switch_event->next_pid);
curr_thread[this_cpu] = sched_in;
sched->curr_thread[this_cpu] = sched_in;
printf(" ");
new_shortname = 0;
if (!sched_in->shortname[0]) {
sched_in->shortname[0] = next_shortname1;
sched_in->shortname[1] = next_shortname2;
sched_in->shortname[0] = sched->next_shortname1;
sched_in->shortname[1] = sched->next_shortname2;
if (next_shortname1 < 'Z') {
next_shortname1++;
if (sched->next_shortname1 < 'Z') {
sched->next_shortname1++;
} else {
next_shortname1='A';
if (next_shortname2 < '9') {
next_shortname2++;
sched->next_shortname1='A';
if (sched->next_shortname2 < '9') {
sched->next_shortname2++;
} else {
next_shortname2='0';
sched->next_shortname2='0';
}
}
new_shortname = 1;
}
for (cpu = 0; cpu <= max_cpu; cpu++) {
for (cpu = 0; cpu <= sched->max_cpu; cpu++) {
if (cpu != this_cpu)
printf(" ");
else
printf("*");
if (curr_thread[cpu]) {
if (curr_thread[cpu]->pid)
printf("%2s ", curr_thread[cpu]->shortname);
if (sched->curr_thread[cpu]) {
if (sched->curr_thread[cpu]->pid)
printf("%2s ", sched->curr_thread[cpu]->shortname);
else
printf(". ");
} else
......@@ -1485,11 +1454,12 @@ map_switch_event(struct trace_switch_event *switch_event,
return 0;
}
static int process_sched_switch_event(struct perf_tool *tool __maybe_unused,
static int process_sched_switch_event(struct perf_tool *tool,
struct event_format *event,
struct perf_sample *sample,
struct machine *machine)
{
struct perf_sched *sched = container_of(tool, struct perf_sched, tool);
int this_cpu = sample->cpu, err = 0;
void *data = sample->raw_data;
struct trace_switch_event switch_event;
......@@ -1504,26 +1474,27 @@ static int process_sched_switch_event(struct perf_tool *tool __maybe_unused,
FILL_FIELD(switch_event, next_pid, event, data);
FILL_FIELD(switch_event, next_prio, event, data);
if (curr_pid[this_cpu] != (u32)-1) {
if (sched->curr_pid[this_cpu] != (u32)-1) {
/*
* Are we trying to switch away a PID that is
* not current?
*/
if (curr_pid[this_cpu] != switch_event.prev_pid)
nr_context_switch_bugs++;
if (sched->curr_pid[this_cpu] != switch_event.prev_pid)
sched->nr_context_switch_bugs++;
}
if (trace_handler->switch_event)
err = trace_handler->switch_event(&switch_event, machine, event, sample);
if (sched->tp_handler->switch_event)
err = sched->tp_handler->switch_event(sched, &switch_event, machine, event, sample);
curr_pid[this_cpu] = switch_event.next_pid;
sched->curr_pid[this_cpu] = switch_event.next_pid;
return err;
}
static int process_sched_runtime_event(struct perf_tool *tool __maybe_unused,
static int process_sched_runtime_event(struct perf_tool *tool,
struct event_format *event,
struct perf_sample *sample,
struct machine *machine)
{
struct perf_sched *sched = container_of(tool, struct perf_sched, tool);
void *data = sample->raw_data;
struct trace_runtime_event runtime_event;
int err = 0;
......@@ -1533,17 +1504,18 @@ static int process_sched_runtime_event(struct perf_tool *tool __maybe_unused,
FILL_FIELD(runtime_event, runtime, event, data);
FILL_FIELD(runtime_event, vruntime, event, data);
if (trace_handler->runtime_event)
err = trace_handler->runtime_event(&runtime_event, machine, sample);
if (sched->tp_handler->runtime_event)
err = sched->tp_handler->runtime_event(sched, &runtime_event, machine, sample);
return err;
}
static int process_sched_fork_event(struct perf_tool *tool __maybe_unused,
static int process_sched_fork_event(struct perf_tool *tool,
struct event_format *event,
struct perf_sample *sample,
struct machine *machine __maybe_unused)
{
struct perf_sched *sched = container_of(tool, struct perf_sched, tool);
void *data = sample->raw_data;
struct trace_fork_event fork_event;
int err = 0;
......@@ -1555,8 +1527,8 @@ static int process_sched_fork_event(struct perf_tool *tool __maybe_unused,
FILL_ARRAY(fork_event, child_comm, event, data);
FILL_FIELD(fork_event, child_pid, event, data);
if (trace_handler->fork_event)
err = trace_handler->fork_event(&fork_event, event);
if (sched->tp_handler->fork_event)
err = sched->tp_handler->fork_event(sched, &fork_event, event);
return err;
}
......@@ -1572,11 +1544,12 @@ static int process_sched_exit_event(struct perf_tool *tool __maybe_unused,
return 0;
}
static int process_sched_migrate_task_event(struct perf_tool *tool __maybe_unused,
static int process_sched_migrate_task_event(struct perf_tool *tool,
struct event_format *event,
struct perf_sample *sample,
struct machine *machine)
{
struct perf_sched *sched = container_of(tool, struct perf_sched, tool);
void *data = sample->raw_data;
struct trace_migrate_task_event migrate_task_event;
int err = 0;
......@@ -1588,8 +1561,8 @@ static int process_sched_migrate_task_event(struct perf_tool *tool __maybe_unuse
FILL_FIELD(migrate_task_event, prio, event, data);
FILL_FIELD(migrate_task_event, cpu, event, data);
if (trace_handler->migrate_task_event)
err = trace_handler->migrate_task_event(&migrate_task_event, machine, sample);
if (sched->tp_handler->migrate_task_event)
err = sched->tp_handler->migrate_task_event(sched, &migrate_task_event, machine, sample);
return err;
}
......@@ -1625,15 +1598,8 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __maybe_
return err;
}
static struct perf_tool perf_sched = {
.sample = perf_sched__process_tracepoint_sample,
.comm = perf_event__process_comm,
.lost = perf_event__process_lost,
.fork = perf_event__process_task,
.ordered_samples = true,
};
static int read_events(bool destroy, struct perf_session **psession)
static int perf_sched__read_events(struct perf_sched *sched, bool destroy,
struct perf_session **psession)
{
const struct perf_evsel_str_handler handlers[] = {
{ "sched:sched_switch", process_sched_switch_event, },
......@@ -1646,7 +1612,7 @@ static int read_events(bool destroy, struct perf_session **psession)
};
struct perf_session *session;
session = perf_session__new(input_name, O_RDONLY, 0, false, &perf_sched);
session = perf_session__new(sched->input_name, O_RDONLY, 0, false, &sched->tool);
if (session == NULL) {
pr_debug("No Memory for session\n");
return -1;
......@@ -1656,15 +1622,15 @@ static int read_events(bool destroy, struct perf_session **psession)
goto out_delete;
if (perf_session__has_traces(session, "record -R")) {
int err = perf_session__process_events(session, &perf_sched);
int err = perf_session__process_events(session, &sched->tool);
if (err) {
pr_err("Failed to process events, error %d", err);
goto out_delete;
}
nr_events = session->hists.stats.nr_events[0];
nr_lost_events = session->hists.stats.total_lost;
nr_lost_chunks = session->hists.stats.nr_events[PERF_RECORD_LOST];
sched->nr_events = session->hists.stats.nr_events[0];
sched->nr_lost_events = session->hists.stats.total_lost;
sched->nr_lost_chunks = session->hists.stats.nr_events[PERF_RECORD_LOST];
}
if (destroy)
......@@ -1680,213 +1646,158 @@ static int read_events(bool destroy, struct perf_session **psession)
return -1;
}
static void print_bad_events(void)
static void print_bad_events(struct perf_sched *sched)
{
if (nr_unordered_timestamps && nr_timestamps) {
if (sched->nr_unordered_timestamps && sched->nr_timestamps) {
printf(" INFO: %.3f%% unordered timestamps (%ld out of %ld)\n",
(double)nr_unordered_timestamps/(double)nr_timestamps*100.0,
nr_unordered_timestamps, nr_timestamps);
(double)sched->nr_unordered_timestamps/(double)sched->nr_timestamps*100.0,
sched->nr_unordered_timestamps, sched->nr_timestamps);
}
if (nr_lost_events && nr_events) {
if (sched->nr_lost_events && sched->nr_events) {
printf(" INFO: %.3f%% lost events (%ld out of %ld, in %ld chunks)\n",
(double)nr_lost_events/(double)nr_events*100.0,
nr_lost_events, nr_events, nr_lost_chunks);
(double)sched->nr_lost_events/(double)sched->nr_events * 100.0,
sched->nr_lost_events, sched->nr_events, sched->nr_lost_chunks);
}
if (nr_state_machine_bugs && nr_timestamps) {
if (sched->nr_state_machine_bugs && sched->nr_timestamps) {
printf(" INFO: %.3f%% state machine bugs (%ld out of %ld)",
(double)nr_state_machine_bugs/(double)nr_timestamps*100.0,
nr_state_machine_bugs, nr_timestamps);
if (nr_lost_events)
(double)sched->nr_state_machine_bugs/(double)sched->nr_timestamps*100.0,
sched->nr_state_machine_bugs, sched->nr_timestamps);
if (sched->nr_lost_events)
printf(" (due to lost events?)");
printf("\n");
}
if (nr_context_switch_bugs && nr_timestamps) {
if (sched->nr_context_switch_bugs && sched->nr_timestamps) {
printf(" INFO: %.3f%% context switch bugs (%ld out of %ld)",
(double)nr_context_switch_bugs/(double)nr_timestamps*100.0,
nr_context_switch_bugs, nr_timestamps);
if (nr_lost_events)
(double)sched->nr_context_switch_bugs/(double)sched->nr_timestamps*100.0,
sched->nr_context_switch_bugs, sched->nr_timestamps);
if (sched->nr_lost_events)
printf(" (due to lost events?)");
printf("\n");
}
}
static int __cmd_lat(void)
static int perf_sched__lat(struct perf_sched *sched)
{
struct rb_node *next;
struct perf_session *session;
setup_pager();
if (read_events(false, &session))
if (perf_sched__read_events(sched, false, &session))
return -1;
sort_lat();
perf_sched__sort_lat(sched);
printf("\n ---------------------------------------------------------------------------------------------------------------\n");
printf(" Task | Runtime ms | Switches | Average delay ms | Maximum delay ms | Maximum delay at |\n");
printf(" ---------------------------------------------------------------------------------------------------------------\n");
next = rb_first(&sorted_atom_root);
next = rb_first(&sched->sorted_atom_root);
while (next) {
struct work_atoms *work_list;
work_list = rb_entry(next, struct work_atoms, node);
output_lat_thread(work_list);
output_lat_thread(sched, work_list);
next = rb_next(next);
}
printf(" -----------------------------------------------------------------------------------------\n");
printf(" TOTAL: |%11.3f ms |%9" PRIu64 " |\n",
(double)all_runtime/1e6, all_count);
(double)sched->all_runtime / 1e6, sched->all_count);
printf(" ---------------------------------------------------\n");
print_bad_events();
print_bad_events(sched);
printf("\n");
perf_session__delete(session);
return 0;
}
static struct trace_sched_handler map_ops = {
.wakeup_event = NULL,
.switch_event = map_switch_event,
.runtime_event = NULL,
.fork_event = NULL,
};
static int __cmd_map(void)
static int perf_sched__map(struct perf_sched *sched)
{
max_cpu = sysconf(_SC_NPROCESSORS_CONF);
sched->max_cpu = sysconf(_SC_NPROCESSORS_CONF);
setup_pager();
if (read_events(true, NULL))
if (perf_sched__read_events(sched, true, NULL))
return -1;
print_bad_events();
print_bad_events(sched);
return 0;
}
static int __cmd_replay(void)
static int perf_sched__replay(struct perf_sched *sched)
{
unsigned long i;
calibrate_run_measurement_overhead();
calibrate_sleep_measurement_overhead();
calibrate_run_measurement_overhead(sched);
calibrate_sleep_measurement_overhead(sched);
test_calibrations();
test_calibrations(sched);
if (read_events(true, NULL))
if (perf_sched__read_events(sched, true, NULL))
return -1;
printf("nr_run_events: %ld\n", nr_run_events);
printf("nr_sleep_events: %ld\n", nr_sleep_events);
printf("nr_wakeup_events: %ld\n", nr_wakeup_events);
printf("nr_run_events: %ld\n", sched->nr_run_events);
printf("nr_sleep_events: %ld\n", sched->nr_sleep_events);
printf("nr_wakeup_events: %ld\n", sched->nr_wakeup_events);
if (targetless_wakeups)
printf("target-less wakeups: %ld\n", targetless_wakeups);
if (multitarget_wakeups)
printf("multi-target wakeups: %ld\n", multitarget_wakeups);
if (nr_run_events_optimized)
if (sched->targetless_wakeups)
printf("target-less wakeups: %ld\n", sched->targetless_wakeups);
if (sched->multitarget_wakeups)
printf("multi-target wakeups: %ld\n", sched->multitarget_wakeups);
if (sched->nr_run_events_optimized)
printf("run atoms optimized: %ld\n",
nr_run_events_optimized);
sched->nr_run_events_optimized);
print_task_traces();
add_cross_task_wakeups();
print_task_traces(sched);
add_cross_task_wakeups(sched);
create_tasks();
create_tasks(sched);
printf("------------------------------------------------------------\n");
for (i = 0; i < replay_repeat; i++)
run_one_test();
for (i = 0; i < sched->replay_repeat; i++)
run_one_test(sched);
return 0;
}
static const char * const sched_usage[] = {
"perf sched [<options>] {record|latency|map|replay|script}",
NULL
};
static const struct option sched_options[] = {
OPT_STRING('i', "input", &input_name, "file",
"input file name"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_END()
};
static const char * const latency_usage[] = {
"perf sched latency [<options>]",
NULL
};
static const struct option latency_options[] = {
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
"sort by key(s): runtime, switch, avg, max"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_INTEGER('C', "CPU", &profile_cpu,
"CPU to profile on"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_END()
};
static const char * const replay_usage[] = {
"perf sched replay [<options>]",
NULL
};
static const struct option replay_options[] = {
OPT_UINTEGER('r', "repeat", &replay_repeat,
"repeat the workload replay N times (-1: infinite)"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_END()
};
static void setup_sorting(void)
static void setup_sorting(struct perf_sched *sched, const struct option *options,
const char * const usage_msg[])
{
char *tmp, *tok, *str = strdup(sort_order);
char *tmp, *tok, *str = strdup(sched->sort_order);
for (tok = strtok_r(str, ", ", &tmp);
tok; tok = strtok_r(NULL, ", ", &tmp)) {
if (sort_dimension__add(tok, &sort_list) < 0) {
if (sort_dimension__add(tok, &sched->sort_list) < 0) {
error("Unknown --sort key: `%s'", tok);
usage_with_options(latency_usage, latency_options);
usage_with_options(usage_msg, options);
}
}
free(str);
sort_dimension__add("pid", &cmp_pid);
sort_dimension__add("pid", &sched->cmp_pid);
}
static const char *record_args[] = {
"record",
"-a",
"-R",
"-f",
"-m", "1024",
"-c", "1",
"-e", "sched:sched_switch",
"-e", "sched:sched_stat_wait",
"-e", "sched:sched_stat_sleep",
"-e", "sched:sched_stat_iowait",
"-e", "sched:sched_stat_runtime",
"-e", "sched:sched_process_exit",
"-e", "sched:sched_process_fork",
"-e", "sched:sched_wakeup",
"-e", "sched:sched_migrate_task",
};
static int __cmd_record(int argc, const char **argv)
{
unsigned int rec_argc, i, j;
const char **rec_argv;
const char * const record_args[] = {
"record",
"-a",
"-R",
"-f",
"-m", "1024",
"-c", "1",
"-e", "sched:sched_switch",
"-e", "sched:sched_stat_wait",
"-e", "sched:sched_stat_sleep",
"-e", "sched:sched_stat_iowait",
"-e", "sched:sched_stat_runtime",
"-e", "sched:sched_process_exit",
"-e", "sched:sched_process_fork",
"-e", "sched:sched_wakeup",
"-e", "sched:sched_migrate_task",
};
rec_argc = ARRAY_SIZE(record_args) + argc - 1;
rec_argv = calloc(rec_argc + 1, sizeof(char *));
......@@ -1907,6 +1818,83 @@ static int __cmd_record(int argc, const char **argv)
int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
{
const char default_sort_order[] = "avg, max, switch, runtime";
struct perf_sched sched = {
.tool = {
.sample = perf_sched__process_tracepoint_sample,
.comm = perf_event__process_comm,
.lost = perf_event__process_lost,
.fork = perf_event__process_task,
.ordered_samples = true,
},
.cmp_pid = LIST_HEAD_INIT(sched.cmp_pid),
.sort_list = LIST_HEAD_INIT(sched.sort_list),
.start_work_mutex = PTHREAD_MUTEX_INITIALIZER,
.work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER,
.curr_pid = { [0 ... MAX_CPUS - 1] = -1 },
.sort_order = default_sort_order,
.replay_repeat = 10,
.profile_cpu = -1,
.next_shortname1 = 'A',
.next_shortname2 = '0',
};
const struct option latency_options[] = {
OPT_STRING('s', "sort", &sched.sort_order, "key[,key2...]",
"sort by key(s): runtime, switch, avg, max"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_INTEGER('C', "CPU", &sched.profile_cpu,
"CPU to profile on"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_END()
};
const struct option replay_options[] = {
OPT_UINTEGER('r', "repeat", &sched.replay_repeat,
"repeat the workload replay N times (-1: infinite)"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_END()
};
const struct option sched_options[] = {
OPT_STRING('i', "input", &sched.input_name, "file",
"input file name"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_END()
};
const char * const latency_usage[] = {
"perf sched latency [<options>]",
NULL
};
const char * const replay_usage[] = {
"perf sched replay [<options>]",
NULL
};
const char * const sched_usage[] = {
"perf sched [<options>] {record|latency|map|replay|script}",
NULL
};
struct trace_sched_handler lat_ops = {
.wakeup_event = latency_wakeup_event,
.switch_event = latency_switch_event,
.runtime_event = latency_runtime_event,
.fork_event = latency_fork_event,
.migrate_task_event = latency_migrate_task_event,
};
struct trace_sched_handler map_ops = {
.switch_event = map_switch_event,
};
struct trace_sched_handler replay_ops = {
.wakeup_event = replay_wakeup_event,
.switch_event = replay_switch_event,
.fork_event = replay_fork_event,
};
argc = parse_options(argc, argv, sched_options, sched_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (!argc)
......@@ -1922,26 +1910,26 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
if (!strncmp(argv[0], "rec", 3)) {
return __cmd_record(argc, argv);
} else if (!strncmp(argv[0], "lat", 3)) {
trace_handler = &lat_ops;
sched.tp_handler = &lat_ops;
if (argc > 1) {
argc = parse_options(argc, argv, latency_options, latency_usage, 0);
if (argc)
usage_with_options(latency_usage, latency_options);
}
setup_sorting();
return __cmd_lat();
setup_sorting(&sched, latency_options, latency_usage);
return perf_sched__lat(&sched);
} else if (!strcmp(argv[0], "map")) {
trace_handler = &map_ops;
setup_sorting();
return __cmd_map();
sched.tp_handler = &map_ops;
setup_sorting(&sched, latency_options, latency_usage);
return perf_sched__map(&sched);
} else if (!strncmp(argv[0], "rep", 3)) {
trace_handler = &replay_ops;
sched.tp_handler = &replay_ops;
if (argc) {
argc = parse_options(argc, argv, replay_options, replay_usage, 0);
if (argc)
usage_with_options(replay_usage, replay_options);
}
return __cmd_replay();
return perf_sched__replay(&sched);
} else {
usage_with_options(sched_usage, sched_options);
}
......
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