- 11 Oct, 2013 22 commits
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Arnaldo Carvalho de Melo authored
[root@zoo linux]# trace -e ioctl | grep -v "cmd: 0x" | head -10 0.386 ( 0.001 ms): trace/1602 ioctl(fd: 1<pipe:[127057]>, cmd: TCGETS, arg: 0x7fff59fcb4d0 ) = -1 ENOTTY Inappropriate ioctl for device 1459.368 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.586 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 1463.611 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc ) = 0 3740.526 ( 0.002 ms): awk/1612 ioctl(fd: 1<pipe:[128265]>, cmd: TCGETS, arg: 0x7fff4d166b90 ) = -1 ENOTTY Inappropriate ioctl for device 3740.704 ( 0.001 ms): awk/1612 ioctl(fd: 3</proc/meminfo>, cmd: TCGETS, arg: 0x7fff4d1669a0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.550 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.555 ( 0.003 ms): ps/1614 ioctl(fd: 2<socket:[19550]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.558 ( 0.002 ms): ps/1614 ioctl(cmd: TIOCGWINSZ, arg: 0x7fff591762b0 ) = -1 ENOTTY Inappropriate ioctl for device 3742.572 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TCGETS, arg: 0x7fff59176220 ) = -1 ENOTTY Inappropriate ioctl for device [root@zoo linux]# Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-afajwap3mr60dfl4qpdl1pxn@git.kernel.orgSigned-off-by:Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo authored
Right now when an index passed to that method has no string associated it'll print the index as a decimal number, prepare it so that we can use it to print it in hex as well, for ioctls, for instance. Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-nsvy06sqj64qvnkmzvwxsx2v@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
So that the index passed doesn't have to start at zero, being decremented from an offset specified when declaring the strarray before being used as the real array index. Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-k1ce6uqyt4qar9edrj3mevod@git.kernel.orgSigned-off-by:
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Adrian Hunter authored
Make a separate function to parse /proc/modules so that it can be reused. Signed-off-by:
Adrian Hunter <adrian.hunter@intel.com> 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 <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381221956-16699-2-git-send-email-adrian.hunter@intel.comSigned-off-by:
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David Ahern authored
Allows commands to leverage intlist infrastructure for opaque structures. For example an upcoming perf-trace change will use this as a means of tracking syscalls statistics by task. Signed-off-by:
David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1380395584-9025-6-git-send-email-dsahern@gmail.comSigned-off-by:
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David Ahern authored
Use the new machine method that loops over threads to dump summary data. Signed-off-by:
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David Ahern authored
Loop over all threads within a machine - including threads moved to the dead threads list -- and invoked a function. This allows commands to run some specific function on each thread (eg., dump statistics) yet hides how the threads are maintained within the machine. Signed-off-by:
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David Ahern authored
The record option is a convience alias to include the -e raw_syscalls:* argument to perf-record. All other options are passed to perf-record's handler. Resulting data file can be analyzed by perf-trace -i. Signed-off-by:
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David Ahern authored
Task comm's are getting lost when processing events from a file. The problem is that the trace struct used by the live processing has its host machine and the perf-session used for file based processing has its host machine. Fix by having both references point to the same machine. Before: 0.030 ( 0.001 ms): :27743/27743 brk( ... 0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... After: 0.030 ( 0.001 ms): make/27743 brk( ... 0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ... 0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ... 0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ... ... Signed-off-by: -
David Ahern authored
Ingo pointed out that the task-clock counter should have the units explicitly stated since it is not a counter. Before: perf stat -a -- sleep 1 Performance counter stats for 'sleep 1': 16186.874834 task-clock # 16.154 CPUs utilized ... After: perf stat -a -- sleep 1 Performance counter stats for 'system wide': 16146.402138 task-clock (msec) # 16.125 CPUs utilized ... Reported-by:Ingo Molnar <mingo@kernel.org> Signed-off-by:
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David Ahern authored
The "perf stat" command can do system wide counters or one or more cpus. For these options do not require a workload to be specified. v2: use perf_target__none per Namhyung's comment. Signed-off-by:
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David Ahern authored
The "perf stat" tool displays the command run in its summary output which is misleading when using a cpu list or system wide collection. Before: perf stat -a -- sleep 1 Performance counter stats for 'sleep 1': 16152.670249 task-clock # 16.132 CPUs utilized 417 context-switches # 0.002 M/sec 7 cpu-migrations # 0.030 K/sec ... After: perf stat -a -- sleep 1 Performance counter stats for 'system wide': 16206.931120 task-clock # 16.144 CPUs utilized 395 context-switches # 0.002 M/sec 5 cpu-migrations # 0.030 K/sec ... or perf stat -C1 -- sleep 1 Performance counter stats for 'CPU(s) 1': 1001.669257 task-clock # 1.000 CPUs utilized 4,264 context-switches # 0.004 M/sec 3 cpu-migrations # 0.003 K/sec ... Signed-off-by: -
Jiri Olsa authored
The perf_evlist__mmap_read used 'union perf_event' as a placeholder for event crossing the mmap boundary. This is ok for sample shorter than ~PATH_MAX. However we could grow up to the maximum sample size which is 16 bits max. I hit this overflow issue when using 'perf top -G dwarf' which produces sample with the size around 8192 bytes. We could configure any valid sample size here using: '-G dwarf,size'. Using array with sample max size instead for the event placeholder. Also adding another safe check for the dynamic size of the user stack. TODO: The 'struct perf_mmap' is quite big now, maybe we could use some lazy allocation for event_copy size. Signed-off-by:
Jiri Olsa <jolsa@redhat.com> Acked-by:
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Petr Holasek authored
Patch adds more subtle handling of -C and -N parameters in parse_{cpu,node}_setup_list() functions when there isn't enough NUMA nodes or CPUs present. Instead of assertion and terminating benchmark, partial test is skipped with error message and perf will continue to the next one. Fixed problem can be easily reproduced on machine with only one NUMA node: # Running numa/mem benchmark... # Running main, "perf bench numa mem -a" ... # Running RAM-bw-remote, "perf bench numa mem -p 1 -t 1 -P 1024 -C 0 -M 1 -s perf: bench/numa.c:622: parse_setup_node_list: Assertion `!(bind_node_0 < 0 || bind_node_0 >= g->p.nr_nodes)' failed. Aborted Signed-off-by:Petr Holasek <pholasek@redhat.com> Acked-by:
Petr Benas <pbenas@redhat.com> Signed-off-by:
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Ramkumar Ramachandra authored
The default output file produced by the 'perf timechart' tool is called output.svg, add it to .gitignore. Signed-off-by:
Ramkumar Ramachandra <artagnon@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Link: http://lkml.kernel.org/r/1380789636-4512-1-git-send-email-artagnon@gmail.comSigned-off-by:
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Ramkumar Ramachandra authored
When only the instructions event is requested: $ perf stat -e instructions git s M builtin-stat.c Performance counter stats for 'git s': 917,453,420 instructions # 0.00 insns per cycle 0.213002926 seconds time elapsed The 0.00 insns per cycle comment in the output is totally bogus and misleading. It happens because update_shadow_stats() doesn't touch runtime_cycles_stats when only the instructions event is requested. So, omit printing the bogus data altogether. Signed-off-by: -
Ramkumar Ramachandra authored
When only the cycles event is requested: $ perf stat -e cycles dd if=/dev/zero of=/dev/null count=1000000 1000000+0 records in 1000000+0 records out 512000000 bytes (512 MB) copied, 0.26123 s, 2.0 GB/s Performance counter stats for 'dd if=/dev/zero of=/dev/null count=1000000': 911,626,453 cycles # 0.000 GHz 0.262113350 seconds time elapsed The 0.000 GHz comment in the output is totally bogus and misleading. It happens because update_shadow_stats() doesn't touch runtime_nsecs_stats; it is only written when a requested counter matches a SW_TASK_CLOCK. In our case, since we have only requested HW_CPU_CYCLES, runtime_nsecs_stats is unavailable. So, omit printing the comment altogether. Signed-off-by: -
Jiri Olsa authored
Moving start conditions to start of the flex file so it's clear what the INITIAL condition rules are. Plus adding default rule for INITIAL condition. This prevents default space to be printed for events like: $ ./perf stat -e "cycles " kill 2>/dev/null $ ^^^^^^^^ Signed-off-by: -
Jiri Olsa authored
If we build perf with NO_LIBPYTHON=1 NO_LIBPERL=1 the '-ldl' is not added to libs build fails if we have gtk2 code in, because it depends on it. Signed-off-by:
Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1380221754-29865-1-git-send-email-jolsa@redhat.comSigned-off-by:
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Adrian Hunter authored
To avoid buffer overruns. Signed-off-by:
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Ingo Molnar authored
Allow the measurement of thread versus process context switch performance. The default stays at 'process' based measurement, like lmbench's lat_ctx benchmark. Sample output: comet:~/tip/tools/perf> taskset 1 ./perf bench sched pipe # Running sched/pipe benchmark... # Executed 1000000 pipe operations between two processes Total time: 4.138 [sec] 4.138729 usecs/op 241620 ops/sec comet:~/tip/tools/perf> taskset 1 ./perf bench sched pipe --threaded # Running sched/pipe benchmark... # Executed 1000000 pipe operations between two threads Total time: 3.667 [sec] 3.667667 usecs/op 272652 ops/sec Signed-off-by: -
Arnaldo Carvalho de Melo authored
Make 'perf trace' more accessible by aliasing it to just 'trace': [root@zoo linux]# trace --duration 15 -a -e futex sleep 1 110.092 (16.188 ms): libvirtd/1166 futex(uaddr: 0x185b344, op: WAIT|PRIV, val: 174293 ) = 0 110.101 (15.903 ms): libvirtd/1171 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139265 ) = 0 111.594 (15.776 ms): libvirtd/1165 futex(uaddr: 0x185b344, op: WAIT|PRIV, val: 174295 ) = 0 111.610 (15.969 ms): libvirtd/1169 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139267 ) = 0 113.556 (16.216 ms): libvirtd/1168 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139269 ) = 0 291.265 (199.508 ms): chromium-brows/15830 futex(uaddr: 0x7fff2986bcb4, op: WAIT_BITSET|PRIV|CLKRT, val: 1, utime: 0x7fff2986bab0, val3: 4294967295) = -1 ETIMEDOUT Connection timed out 360.354 (69.053 ms): chromium-brows/15830 futex(uaddr: 0x7fff2986bcb4, op: WAIT_BITSET|PRIV|CLKRT, val: 1, utime: 0x7fff2986bab0, val3: 4294967295) = -1 ETIMEDOUT Connection timed out [root@zoo linux]# I.e. looking for futex calls that take at least 15ms, system wide, during a one second window. Now to get callchains into 'trace' to figure out what are those locks :-) Requested-by:
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- 09 Oct, 2013 18 commits
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Arnaldo Carvalho de Melo authored
For live sessions we can just access /proc to map an fd to its path, on a best effort way, i.e. sometimes the fd will have gone away when we try to do the mapping, as it is done in a lazy way, only when a reference to such fd is made then the path will be looked up in /proc. This is disabled when processing perf.data files, where we will have to have a way to get getname events, be it via an on-the-fly 'perf probe' event or after a vfs_getname tracepoint is added to the kernel. A first step will be to synthesize such event for the use cases where the threads in the monitored workload exist already. Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Printing it as an hex number. Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gd68zmnwbbofsv5m6w18intw@git.kernel.orgSigned-off-by:
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David Ahern authored
Needed for compiles on Fedora 12 for example. Signed-off-by:
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David Ahern authored
Before: 0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: 1, tp: 0x7f3b45729cd0 ) = 0 After: 0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: MONOTONIC, tp: 0x7f3b45729cd0 ) = 0 v2: Update to use the STRARRAY option Signed-off-by:
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Arnaldo Carvalho de Melo authored
4.234 (0.005 ms): fetchmail/3224 pipe2(fildes: 0x7fffc72bcee0, flags: CLOEXEC) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9e1jz78i6q6e0xr9fsitqbpe@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
For the address family and socket type. Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3a6cwwskobvan823pau76cm4@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Case in hand: 9.682 ( 0.001 ms): Xorg/13079 setitimer(which: REAL, value: 0x7fffede42470) = 0 ITIMER_REAL is zero. Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6hnoqsjh99t4hxi3xu2nlwep@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
In such cases just stating the (arg, name, array) is enough, reducing the size of the syscall formatters table. Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
4735.638 ( 0.003 ms): man/19881 flock(fd: 3, cmd: SH|NB) = 0 4735.832 ( 0.002 ms): man/19881 flock(fd: 3, cmd: UN ) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-amh3y88kh1nmclpwezqlarl8@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
[root@sandy ~]# perf trace -e epoll_ctl 2.490 (0.003 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314ef0) = 0 2.621 (0.003 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24 ) = 0 2.833 (0.010 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314cd0) = 0 2.953 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24 ) = 0 3.118 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314d20) = 0 4.762 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24 ) = 0 ^C[root@sandy ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> 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: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-88xz9phc8cbicnxonud6if8h@git.kernel.orgSigned-off-by:
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Namhyung Kim authored
Currently the srcline sort key compares ip rather than srcline info. I guess this was due to a performance reason to run external addr2line utility. Now we have implemented the functionality inside, use the srcline info when comparing hist entries. Also constantly print "??:0" string for unknown srcline rather than printing ip. Signed-off-by:
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Roberto Vitillo authored
When the srcline sort key is used , the external addr2line utility needs to be run for each hist entry to get the srcline info. This can consume quite a time if one has a huge perf.data file. So rather than executing the external utility, implement it internally and just call it. We can do it since we've linked with libbfd already. Signed-off-by:
Roberto Agostino Vitillo <ravitillo@lbl.gov> Reviewed-by:
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Namhyung Kim authored
Some dso's lack srcline info, so there's no point to keep trying on them. Just save failture status and skip them. Signed-off-by:
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Namhyung Kim authored
This is a preparation of next change. No functional changes are intended. Signed-off-by:
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Namhyung Kim authored
No need to call addr2line since they don't have such information. Signed-off-by:
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Namhyung Kim authored
Currently external addr2line tool is used for srcline sort key and annotate with srcline info. Separate the common code to prepare upcoming enhancements. Signed-off-by:
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Namhyung Kim authored
We've been leaked srcline of hist_entry, it should be freed also. Signed-off-by:
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Namhyung Kim authored
In the symbol__get_source_line(), path and src_line->path will have same value, but they were allocated separately, and leaks one. Just share path to src_line->path. Signed-off-by:
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