Commit f4eccb6d authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'perfcounters-fixes-for-linus' of...

Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf_counter, powerpc, sparc: Fix compilation after perf_counter_overflow() change
  perf_counter: x86: Fix PMU resource leak
  perf util: SVG performance improvements
  perf util: Make the timechart SVG width dynamic
  perf timechart: Show the duration of scheduler delays in the SVG
  perf timechart: Show the name of the waker/wakee in timechart
parents 8e4bc3dd cd74c86b
......@@ -1162,7 +1162,6 @@ static void record_and_restart(struct perf_counter *counter, unsigned long val,
*/
if (record) {
struct perf_sample_data data = {
.regs = regs,
.addr = 0,
.period = counter->hw.last_period,
};
......@@ -1170,7 +1169,7 @@ static void record_and_restart(struct perf_counter *counter, unsigned long val,
if (counter->attr.sample_type & PERF_SAMPLE_ADDR)
perf_get_data_addr(regs, &data.addr);
if (perf_counter_overflow(counter, nmi, &data)) {
if (perf_counter_overflow(counter, nmi, &data, regs)) {
/*
* Interrupts are coming too fast - throttle them
* by setting the counter to 0, so it will be
......
......@@ -493,7 +493,6 @@ static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
regs = args->regs;
data.regs = regs;
data.addr = 0;
cpuc = &__get_cpu_var(cpu_hw_counters);
......@@ -513,7 +512,7 @@ static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
if (!sparc_perf_counter_set_period(counter, hwc, idx))
continue;
if (perf_counter_overflow(counter, 1, &data))
if (perf_counter_overflow(counter, 1, &data, regs))
sparc_pmu_disable_counter(hwc, idx);
}
......
......@@ -924,6 +924,8 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
if (err)
return err;
counter->destroy = hw_perf_counter_destroy;
/*
* Generate PMC IRQs:
* (keep 'enabled' bit clear for now)
......@@ -953,8 +955,6 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
return -EOPNOTSUPP;
}
counter->destroy = hw_perf_counter_destroy;
/*
* Raw event type provide the config in the event structure
*/
......@@ -2107,8 +2107,11 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter)
int err;
err = __hw_perf_counter_init(counter);
if (err)
if (err) {
if (counter->destroy)
counter->destroy(counter);
return ERR_PTR(err);
}
return &pmu;
}
......
......@@ -849,23 +849,6 @@ static inline void perf_counter_comm(struct task_struct *tsk) { }
static inline void perf_counter_fork(struct task_struct *tsk) { }
static inline void perf_counter_init(void) { }
static inline int
perf_output_begin(struct perf_output_handle *handle, struct perf_counter *c,
unsigned int size, int nmi, int sample) { }
static inline void perf_output_end(struct perf_output_handle *handle) { }
static inline void
perf_output_copy(struct perf_output_handle *handle,
const void *buf, unsigned int len) { }
static inline void
perf_output_sample(struct perf_output_handle *handle,
struct perf_event_header *header,
struct perf_sample_data *data,
struct perf_counter *counter) { }
static inline void
perf_prepare_sample(struct perf_event_header *header,
struct perf_sample_data *data,
struct perf_counter *counter,
struct pt_regs *regs) { }
#endif
#define perf_output_put(handle, x) \
......
......@@ -28,6 +28,9 @@ OPTIONS
-i::
--input=::
Select the input file (default: perf.data)
-w::
--width=::
Select the width of the SVG file (default: 1000)
SEE ALSO
......
......@@ -752,6 +752,7 @@ static void draw_wakeups(void)
we = wake_events;
while (we) {
int from = 0, to = 0;
char *task_from = NULL, *task_to = NULL;
/* locate the column of the waker and wakee */
p = all_data;
......@@ -760,10 +761,14 @@ static void draw_wakeups(void)
c = p->all;
while (c) {
if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
if (p->pid == we->waker)
if (p->pid == we->waker) {
from = c->Y;
if (p->pid == we->wakee)
task_from = c->comm;
}
if (p->pid == we->wakee) {
to = c->Y;
task_to = c->comm;
}
}
c = c->next;
}
......@@ -776,7 +781,7 @@ static void draw_wakeups(void)
else if (from && to && abs(from - to) == 1)
svg_wakeline(we->time, from, to);
else
svg_partial_wakeline(we->time, from, to);
svg_partial_wakeline(we->time, from, task_from, to, task_to);
we = we->next;
}
}
......@@ -822,15 +827,15 @@ static void draw_process_bars(void)
continue;
}
svg_box(Y, p->start_time, p->end_time, "process");
svg_box(Y, c->start_time, c->end_time, "process");
sample = c->samples;
while (sample) {
if (sample->type == TYPE_RUNNING)
svg_sample(Y, sample->cpu, sample->start_time, sample->end_time, "sample");
svg_sample(Y, sample->cpu, sample->start_time, sample->end_time);
if (sample->type == TYPE_BLOCKED)
svg_box(Y, sample->start_time, sample->end_time, "blocked");
if (sample->type == TYPE_WAITING)
svg_box(Y, sample->start_time, sample->end_time, "waiting");
svg_waiting(Y, sample->start_time, sample->end_time);
sample = sample->next;
}
......@@ -910,9 +915,9 @@ static void write_svg_file(const char *filename)
if (count < 15)
count = determine_display_tasks(TIME_THRESH / 10);
open_svg(filename, numcpus, count);
open_svg(filename, numcpus, count, first_time, last_time);
svg_time_grid(first_time, last_time);
svg_time_grid();
svg_legenda();
for (i = 0; i < numcpus; i++)
......@@ -1127,6 +1132,8 @@ static const struct option options[] = {
"input file name"),
OPT_STRING('o', "output", &output_name, "file",
"output file name"),
OPT_INTEGER('w', "width", &svg_page_width,
"page width"),
OPT_END()
};
......
......@@ -25,7 +25,8 @@ static u64 turbo_frequency, max_freq;
#define SLOT_MULT 30.0
#define SLOT_HEIGHT 25.0
#define WIDTH 1000.0
int svg_page_width = 1000;
#define MIN_TEXT_SIZE 0.001
......@@ -46,21 +47,54 @@ static double time2pixels(u64 time)
{
double X;
X = WIDTH * (time - first_time) / (last_time - first_time);
X = 1.0 * svg_page_width * (time - first_time) / (last_time - first_time);
return X;
}
void open_svg(const char *filename, int cpus, int rows)
/*
* Round text sizes so that the svg viewer only needs a discrete
* number of renderings of the font
*/
static double round_text_size(double size)
{
int loop = 100;
double target = 10.0;
if (size >= 10.0)
return size;
while (loop--) {
if (size >= target)
return target;
target = target / 2.0;
}
return size;
}
void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end)
{
int new_width;
svgfile = fopen(filename, "w");
if (!svgfile) {
fprintf(stderr, "Cannot open %s for output\n", filename);
return;
}
first_time = start;
first_time = first_time / 100000000 * 100000000;
last_time = end;
/*
* if the recording is short, we default to a width of 1000, but
* for longer recordings we want at least 200 units of width per second
*/
new_width = (last_time - first_time) / 5000000;
if (new_width > svg_page_width)
svg_page_width = new_width;
total_height = (1 + rows + cpu2slot(cpus)) * SLOT_MULT;
fprintf(svgfile, "<?xml version=\"1.0\" standalone=\"no\"?> \n");
fprintf(svgfile, "<svg width=\"%4.1f\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", WIDTH, total_height);
fprintf(svgfile, "<svg width=\"%i\" height=\"%llu\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n", svg_page_width, total_height);
fprintf(svgfile, "<defs>\n <style type=\"text/css\">\n <![CDATA[\n");
......@@ -69,7 +103,8 @@ void open_svg(const char *filename, int cpus, int rows)
fprintf(svgfile, " rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.sample { fill:rgb( 0, 0,255); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.blocked { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.waiting { fill:rgb(255,255, 0); fill-opacity:0.3; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.waiting { fill:rgb(214,214, 0); fill-opacity:0.3; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.WAITING { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0; stroke:rgb( 0, 0, 0); } \n");
fprintf(svgfile, " rect.cpu { fill:rgb(192,192,192); fill-opacity:0.2; stroke-width:0.5; stroke:rgb(128,128,128); } \n");
fprintf(svgfile, " rect.pstate { fill:rgb(128,128,128); fill-opacity:0.8; stroke-width:0; } \n");
fprintf(svgfile, " rect.c1 { fill:rgb(255,214,214); fill-opacity:0.5; stroke-width:0; } \n");
......@@ -92,26 +127,78 @@ void svg_box(int Yslot, u64 start, u64 end, const char *type)
time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
}
void svg_sample(int Yslot, int cpu, u64 start, u64 end, const char *type)
void svg_sample(int Yslot, int cpu, u64 start, u64 end)
{
double text_size;
if (!svgfile)
return;
fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type);
fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"sample\"/>\n",
time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT);
text_size = (time2pixels(end)-time2pixels(start));
if (cpu > 9)
text_size = text_size/2;
if (text_size > 1.25)
text_size = 1.25;
text_size = round_text_size(text_size);
if (text_size > MIN_TEXT_SIZE)
fprintf(svgfile, "<text transform=\"translate(%1.8f,%1.8f)\" font-size=\"%1.6fpt\">%i</text>\n",
fprintf(svgfile, "<text x=\"%1.8f\" y=\"%1.8f\" font-size=\"%1.8fpt\">%i</text>\n",
time2pixels(start), Yslot * SLOT_MULT + SLOT_HEIGHT - 1, text_size, cpu + 1);
}
static char *time_to_string(u64 duration)
{
static char text[80];
text[0] = 0;
if (duration < 1000) /* less than 1 usec */
return text;
if (duration < 1000 * 1000) { /* less than 1 msec */
sprintf(text, "%4.1f us", duration / 1000.0);
return text;
}
sprintf(text, "%4.1f ms", duration / 1000.0 / 1000);
return text;
}
void svg_waiting(int Yslot, u64 start, u64 end)
{
char *text;
const char *style;
double font_size;
if (!svgfile)
return;
style = "waiting";
if (end-start > 10 * 1000000) /* 10 msec */
style = "WAITING";
text = time_to_string(end-start);
font_size = 1.0 * (time2pixels(end)-time2pixels(start));
if (font_size > 3)
font_size = 3;
font_size = round_text_size(font_size);
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT);
fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style);
if (font_size > MIN_TEXT_SIZE)
fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%1.8fpt\"> %s</text>\n",
font_size, text);
fprintf(svgfile, "</g>\n");
}
static char *cpu_model(void)
{
static char cpu_m[255];
......@@ -148,7 +235,7 @@ void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq)
cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
sprintf(cpu_string, "CPU %i", (int)cpu+1);
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\">%s</text>\n",
fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string);
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n",
......@@ -162,15 +249,21 @@ void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name
if (!svgfile)
return;
fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n",
time2pixels(start), time2pixels(end)-time2pixels(start), cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT, type);
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), cpu2y(cpu));
fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type);
width = time2pixels(end)-time2pixels(start);
if (width > 6)
width = 6;
width = round_text_size(width);
if (width > MIN_TEXT_SIZE)
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"%3.4fpt\">%s</text>\n",
time2pixels(start), cpu2y(cpu), width, name);
fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%3.8fpt\">%s</text>\n",
width, name);
fprintf(svgfile, "</g>\n");
}
void svg_cstate(int cpu, u64 start, u64 end, int type)
......@@ -191,13 +284,15 @@ void svg_cstate(int cpu, u64 start, u64 end, int type)
time2pixels(start), time2pixels(end)-time2pixels(start),
cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT);
width = time2pixels(end)-time2pixels(start);
width = (time2pixels(end)-time2pixels(start))/2.0;
if (width > 6)
width = 6;
width = round_text_size(width);
if (width > MIN_TEXT_SIZE)
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f) rotate(90)\" font-size=\"%3.4fpt\">C%i</text>\n",
time2pixels(start), cpu2y(cpu), width, type);
fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"%3.8fpt\">C%i</text>\n",
time2pixels(start), cpu2y(cpu)+width, width, type);
}
static char *HzToHuman(unsigned long hz)
......@@ -236,13 +331,13 @@ void svg_pstate(int cpu, u64 start, u64 end, u64 freq)
height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height;
fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n",
time2pixels(start), time2pixels(end), height, height);
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"0.25pt\">%s</text>\n",
fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"0.25pt\">%s</text>\n",
time2pixels(start), height+0.9, HzToHuman(freq));
}
void svg_partial_wakeline(u64 start, int row1, int row2)
void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2)
{
double height;
......@@ -251,21 +346,35 @@ void svg_partial_wakeline(u64 start, int row1, int row2)
if (row1 < row2) {
if (row1)
if (row1) {
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
if (row2)
if (desc2)
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2);
}
if (row2) {
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT);
if (desc1)
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &gt;</text></g>\n",
time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1);
}
} else {
if (row2)
if (row2) {
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32);
if (row1)
if (desc1)
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1);
}
if (row1) {
fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n",
time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT);
if (desc2)
fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s &lt;</text></g>\n",
time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2);
}
}
height = row1 * SLOT_MULT;
if (row2 > row1)
......@@ -313,7 +422,7 @@ void svg_text(int Yslot, u64 start, const char *text)
if (!svgfile)
return;
fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\">%s</text>\n",
fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n",
time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text);
}
......@@ -324,7 +433,7 @@ static void svg_legenda_box(int X, const char *text, const char *style)
fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n",
X, boxsize, boxsize, style);
fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.4fpt\">%s</text>\n",
fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.8fpt\">%s</text>\n",
X + boxsize + 5, boxsize, 0.8 * boxsize, text);
}
......@@ -342,15 +451,10 @@ void svg_legenda(void)
svg_legenda_box(800, "Blocked on IO", "blocked");
}
void svg_time_grid(u64 start, u64 end)
void svg_time_grid(void)
{
u64 i;
first_time = start;
last_time = end;
first_time = first_time / 100000000 * 100000000;
if (!svgfile)
return;
......
......@@ -3,9 +3,10 @@
#include "types.h"
extern void open_svg(const char *filename, int cpus, int rows);
extern void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end);
extern void svg_box(int Yslot, u64 start, u64 end, const char *type);
extern void svg_sample(int Yslot, int cpu, u64 start, u64 end, const char *type);
extern void svg_sample(int Yslot, int cpu, u64 start, u64 end);
extern void svg_waiting(int Yslot, u64 start, u64 end);
extern void svg_cpu_box(int cpu, u64 max_frequency, u64 turbo_frequency);
......@@ -14,12 +15,14 @@ extern void svg_cstate(int cpu, u64 start, u64 end, int type);
extern void svg_pstate(int cpu, u64 start, u64 end, u64 freq);
extern void svg_time_grid(u64 start, u64 end);
extern void svg_time_grid(void);
extern void svg_legenda(void);
extern void svg_wakeline(u64 start, int row1, int row2);
extern void svg_partial_wakeline(u64 start, int row1, int row2);
extern void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2);
extern void svg_interrupt(u64 start, int row);
extern void svg_text(int Yslot, u64 start, const char *text);
extern void svg_close(void);
extern int svg_page_width;
#endif
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