62e503b7ed
perf evsel: Set attr.task bit for a tracking event
...
The perf_event_attr.task bit is to track task (fork and exit) events but
it missed to be set by perf_evsel__config(). While it was not a problem
in practice since setting other bits (comm/mmap) ended up being in same
result, it'd be good to set it explicitly anyway.
The attr->task is to track task related events (fork/exit) only but
other meta events like comm and mmap[2] also needs the task events. So
setting attr->comm and/or attr->mmap causes the kernel emits the task
events anyway. So the attr->task is only meaningful when other bits are
off but I'd like to set it for completeness.
Signed-off-by: Namhyung Kim <namhyung@kernel.org >
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: Andi Kleen <andi@firstfloor.org >
Cc: David Ahern <dsahern@gmail.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl >
Cc: Stephane Eranian <eranian@google.com >
Link: http://lkml.kernel.org/r/1422518843-25818-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2015-01-29 16:54:59 -03:00
8d9cbd8f87
perf evsel: Don't rely on malloc working for sz 0
...
When running perf on ARC (uClibc based userspace), ran into this issue
------------->8----------------
[ARCLinux]$ ./perf record ls
bin etc perf sys
debug init perf.data tmp
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.001 MB perf.data (~24 samples) ]
[ARCLinux]$ ./perf report
incompatible file format (rerun with -v to learn more)
------------->8----------------
The problem happens in the following call stack when zalloc is called
with size zero
glibc default / uClibc with MALLOC_GLIBC_COMPAT are OK, but not if that
config option is not enabled.
cmd_report
perf_session__new
perf_session__open
perf_session__read_header
read_attr(fd, header, &f_attr)
nr_ids = f_attr.ids.size / sizeof(u64); <-- 0
perf_evsel__alloc_id(vsel, 1, nr_ids)
zalloc(ncpus * nthreads * sizeof(u64)) <-- 0
header.c: read_attr()
(gdb) p *f_attr
$17 = {
attr = {
type = 0,
size = 96,
config = 0,
{
sample_period = 4000,
sample_freq = 4000
},
...
ids = {
offset = 104,
size = 0 <------
}
}
Signed-off-by: Vineet Gupta <vgupta@synopsys.com >
Suggested-by: Namhyung Kim <namhyung@kernel.org >
Acked-by: Jiri Olsa <jolsa@kernel.org >
Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com >
Cc: Peter Zijlstra <peterz@infradead.org >
Link: http://lkml.kernel.org/r/1421156604-30603-5-git-send-email-vgupta@synopsys.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2015-01-28 12:43:32 -03:00
a5a7fd76b5
perf tools: Remove perf_evsel__read interface
...
Removing the perf_evsel__read interfaces because we replaced the only
user in the stat command code.
Signed-off-by: Jiri Olsa <jolsa@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@kernel.org >
Cc: Matt Fleming <matt.fleming@intel.com >
Cc: Namhyung Kim <namhyung@kernel.org >
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/1416562275-12404-8-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-12-01 20:00:30 -03:00
011dccbdd9
perf evsel: Introduce perf_evsel__read_cb function
...
Adding perf_evsel__read_cb read function that retuns count values via
callback. It will be used later in stat command as single way to
retrieve counter values.
Signed-off-by: Jiri Olsa <jolsa@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@kernel.org >
Cc: Matt Fleming <matt.fleming@intel.com >
Cc: Namhyung Kim <namhyung@kernel.org >
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/1416562275-12404-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-11-24 18:03:50 -03:00
13112bbf59
perf evsel: Introduce perf_counts_values__scale function
...
Factoring out scale login into perf_counts_values__scale function.
Signed-off-by: Jiri Olsa <jolsa@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@kernel.org >
Cc: Matt Fleming <matt.fleming@intel.com >
Cc: Namhyung Kim <namhyung@kernel.org >
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/1416562275-12404-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-11-24 18:03:50 -03:00
857a94a226
perf evsel: Introduce perf_evsel__compute_deltas function
...
Making compute_deltas functions global and renaming it to
perf_evsel__compute_deltas.
It will be used in stat command in later patch.
Signed-off-by: Jiri Olsa <jolsa@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@kernel.org >
Cc: Matt Fleming <matt.fleming@intel.com >
Cc: Namhyung Kim <namhyung@kernel.org >
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/1416562275-12404-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-11-24 18:03:49 -03:00
f140373bc9
perf evsel: Fix ftrace:function event recording
...
Following patch fails (-EINVAL) ftrace:function with enabled user
space callchains:
cfa77bc4afrostedt@goodmis.org >
Signed-off-by: Jiri Olsa <jolsa@kernel.org >
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com >
Cc: David Ahern <dsahern@gmail.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Ingo Molnar <mingo@kernel.org >
Cc: Namhyung Kim <namhyung@kernel.org >
Cc: Paul Mackerras <paulus@samba.org >
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl >
Cc: Steven Rostedt <rostedt@goodmis.org >
Link: http://lkml.kernel.org/r/1415899263-24820-1-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-11-19 12:33:48 -03:00
6a21c0b5c2
perf tools: Add core support for sampling intr machine state regs
...
Add the infrastructure to setup, collect and report the interrupt
machine state regs which can be captured by the kernel.
Signed-off-by: Stephane Eranian <eranian@google.com >
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org >
Cc: cebbert.lkml@gmail.com
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: Andi Kleen <ak@linux.intel.com >
Cc: Arnaldo Carvalho de Melo <acme@kernel.org >
Cc: David Ahern <dsahern@gmail.com >
Cc: Don Zickus <dzickus@redhat.com >
Cc: Jean Pihet <jean.pihet@linaro.org >
Cc: Jiri Olsa <jolsa@kernel.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Linus Torvalds <torvalds@linux-foundation.org >
Cc: Namhyung Kim <namhyung@kernel.org >
Cc: Paul Mackerras <paulus@samba.org >
Cc: Stephane Eranian <eranian@google.com >
Cc: Waiman Long <Waiman.Long@hp.com >
Cc: Wang Nan <wangnan0@huawei.com >
Link: http://lkml.kernel.org/r/1411559322-16548-4-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org >
2014-11-16 11:41:59 +01:00
daa01794a4
perf evsel: Do not call pevent_free_format when deleting tracepoint
...
The libtraceevent library's main handle 'struct pevent' holds pointers
of every event that was added to it via functions:
pevent_parse_format
pevent_parse_event
We can't release struct event_format (call pevent_free_format)
separately, because that breaks that pointers array mentioned above and
another add_event call could end up with segfault.
All added events are released within the handle cleanup in pevent_free.
Signed-off-by: Jiri Olsa <jolsa@kernel.org >
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com >
Cc: David Ahern <dsahern@gmail.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Ingo Molnar <mingo@kernel.org >
Cc: Namhyung Kim <namhyung@kernel.org >
Cc: Paul Mackerras <paulus@samba.org >
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl >
Cc: Steven Rostedt <rostedt@goodmis.org >
Link: http://lkml.kernel.org/r/1415098538-1512-1-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-11-06 17:47:14 -03:00
f14d570785
perf evsel: No need to drag util/cgroup.h
...
The only thing we need is a forward declaration for 'struct cgroup_sel',
that is inside 'struct perf_evsel'.
Include cgroup.h instead on the tools that support cgroups.
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: Borislav Petkov <bp@suse.de >
Cc: David Ahern <dsahern@gmail.com >
Cc: Don Zickus <dzickus@redhat.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Jean Pihet <jean.pihet@linaro.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Mike Galbraith <efault@gmx.de >
Cc: Namhyung Kim <namhyung@kernel.org >
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-b7kuymbgf0zxi5viyjjtu5hk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-10-17 12:17:40 -03:00
597e48c138
perf evsel: Move exit stuff from __delete to __exit
...
So that when an evsel is embedded into other struct it can free up
resources calling perf_evsel__exit().
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: Borislav Petkov <bp@suse.de >
Cc: David Ahern <dsahern@gmail.com >
Cc: Don Zickus <dzickus@redhat.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Jean Pihet <jean.pihet@linaro.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Mike Galbraith <efault@gmx.de >
Cc: Namhyung Kim <namhyung@kernel.org >
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-n1w68pfe9m2vkhm4sqs8y1en@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-10-17 11:14:15 -03:00
8885846fc4
perf evsel: Make some exit routines static
...
Since they are automatically called by other methods used by tools.
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: Borislav Petkov <bp@suse.de >
Cc: David Ahern <dsahern@gmail.com >
Cc: Don Zickus <dzickus@redhat.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Jean Pihet <jean.pihet@linaro.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Mike Galbraith <efault@gmx.de >
Cc: Namhyung Kim <namhyung@kernel.org >
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-ne3g4any7q6ty5d6yv8t1wws@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-10-14 17:32:55 -03:00
a635fc511e
perf tools: Remove hists from evsel
...
Now tools that deals want to have an hists per evsel need to call
hists__init() before creating any evsels, which can be as early as when
parsing the command line, so do it before calling parse_options().
The current tools using hists/hist_entries are report, top and annotate,
change them to request per evsel hists.
This is in preparation for making evsels usable by 3rd party tools, that
not necessarily live in perf's source code repository.
Acked-by: Borislav Petkov <bp@suse.de >
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: Borislav Petkov <bp@suse.de >
Cc: David Ahern <dsahern@gmail.com >
Cc: Don Zickus <dzickus@redhat.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Jean Pihet <jean.pihet@linaro.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Mike Galbraith <efault@gmx.de >
Cc: Namhyung Kim <namhyung@kernel.org >
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-usjx2la743f10ippj7p1b20x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-10-14 17:32:52 -03:00
8f651eae18
perf callchain: Move the callchain_param extern to callchain.h
...
It was lost in hist.h, move it to where it belongs, callchain.h, as
there are places that gets hist.h by means of evsel.h, and since evsel.h
is being untangled from hist.h...
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: Borislav Petkov <bp@suse.de >
Cc: David Ahern <dsahern@gmail.com >
Cc: Don Zickus <dzickus@redhat.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Jean Pihet <jean.pihet@linaro.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Mike Galbraith <efault@gmx.de >
Cc: Namhyung Kim <namhyung@kernel.org >
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-0rg7ji1jnbm6q6gj35j37jby@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-10-14 17:32:51 -03:00
ce8ccff5dd
perf evsel: Subclassing
...
Provide a method to be called at tool start to config the perf_evsel
instance size, together with optional constructor and destructor.
This will be used so that perf_evsel doesn't always include a struct
hists, tools that works with hists/hist_entries, like report, top and
annotate, will, at start, tell the evsel class the size they need per
instance.
v2: Don't use exit as a name of a member of function parameter, as this
breaks the build on at least fedora14 and rhel6.
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: Borislav Petkov <bp@suse.de >
Cc: David Ahern <dsahern@gmail.com >
Cc: Don Zickus <dzickus@redhat.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Jean Pihet <jean.pihet@linaro.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Mike Galbraith <efault@gmx.de >
Cc: Namhyung Kim <namhyung@kernel.org >
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-7t8cay0ieryox4gqosie85ek@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-10-14 17:32:03 -03:00
72a128aa08
perf tools: Move callchain config from record_opts to callchain_param
...
So that all callchain config parameters can be read/written to a single
place. It's a preparation to consolidate handling of all callchain
options.
Reviewed-by: David Ahern <dsahern@gmail.com >
Signed-off-by: Namhyung Kim <namhyung@kernel.org >
Acked-by: Jiri Olsa <jolsa@redhat.com >
Cc: David Ahern <dsahern@gmail.com >
Cc: Ingo Molnar <mingo@kernel.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Milian Wolff <mail@milianw.de >
Cc: Namhyung Kim <namhyung.kim@lge.com >
Cc: Paul Mackerras <paulus@samba.org >
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl >
Link: http://lkml.kernel.org/r/1411434104-5307-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-09-26 12:40:33 -03:00
6e81c74cbf
perf util: Replace strerror with strerror_r for thread-safety
...
Replaces all strerror with strerror_r in util for making the perf lib
thread-safe.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com >
Cc: Ingo Molnar <mingo@redhat.com >
Cc: Namhyung Kim <namhyung@kernel.org >
Cc: Naohiro Aota <naota@elisp.net >
Cc: Paul Mackerras <paulus@samba.org >
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl >
Link: http://lkml.kernel.org/r/20140814022236.3545.3367.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-08-15 10:58:35 -03:00
60b0896cc3
perf evlist: Add perf_evlist__set_tracking_event()
...
Add a function to change which event is used to track mmap, comm and
task events.
This is needed with Instruction Tracing because the Instruction Tracing
event must come first but cannot be used for tracking because it will be
disabled under some circumstances.
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: 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/r/1406786474-9306-10-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-08-13 19:21:32 -03:00
bf8e8f4b83
perf evlist: Add 'system_wide' option
...
Add an option to cause a selected event to be opened always without a
pid when configured by perf_evsel__config().
This is needed when using the sched_switch tracepoint to follow object
code execution.
sched_switch occurs before the task switch and so it cannot record it in
a context limited to that task. Note that also means that sched_switch
is useless when capturing data per-thread, as is the 'context-switches'
software event for the same reason.
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: 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/r/1406786474-9306-9-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-08-13 19:21:18 -03:00
63914aca8f
perf tools: Show better error message in case we fail to open counters due to EBUSY error
...
Showing better error message in case we fail to open counters due to the
EBUSY error. If we detect oprofile daemon process running, we now
display following message for EBUSY error:
$ perf record ls
Error:
The PMU counters are busy/taken by another profiler.
We found oprofile daemon running, please stop it and try again.
In case oprofiled was not detected the current error message stays:
$ perf record ls
Error:
The sys_perf_event_open() syscall returned with 16 (Device or resource busy) for event (cycles).
/bin/dmesg may provide additional information.
No CONFIG_PERF_EVENTS=y kernel support configured?
Also changing PERF_FLAG_FD_CLOEXEC detection code not to display error
in case of EBUSY error, as it currently does:
$ perf record ls
Error:
perf_event_open(..., PERF_FLAG_FD_CLOEXEC) failed with unexpected error 16 (Device or resource busy)
perf_event_open(..., 0) failed unexpectedly with error 16 (Device or resource busy)
The PMU counters are busy/taken by another profiler.
We found oprofile daemon running, please stop it and try again.
Signed-off-by: Jiri Olsa <jolsa@kernel.org >
Cc: Adrian Hunter <adrian.hunter@intel.com >
Cc: David Ahern <dsahern@gmail.com >
Cc: Frederic Weisbecker <fweisbec@gmail.com >
Cc: Namhyung Kim <namhyung@gmail.com >
Cc: Paul Mackerras <paulus@samba.org >
Cc: Peter Zijlstra <peterz@infradead.org >
Cc: Stephane Eranian <eranian@google.com >
Cc: William Cohen <wcohen@redhat.com >
Cc: Yann Droneaud <ydroneaud@opteya.com >
Link: http://lkml.kernel.org/r/1406908014-8312-1-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-08-12 12:03:02 -03:00
8affc2b8c2
perf record: Honour --no-time command line option
...
Time stamps are always implicitely enabled for record currently. The
old --time/-T option is a nop.
Allow the user to disable timestamps by using --no-time, honouring the
existing option.
The defaults are unchanged.
Signed-off-by: Andi Kleen <ak@linux.intel.com >
Cc: Andi Kleen <andi@firstfloor.org >
Cc: Ingo Molnar <mingo@kernel.org >
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl >
Cc: Stephane Eranian <eranian@google.com >
Link: http://lkml.kernel.org/r/1406789104-25863-10-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-08-12 12:00:03 -03:00
57480d2cd9
perf tools: Enable close-on-exec flag on perf file descriptor
...
In commit a21b0b354dydroneaud@opteya.com >
Cc: Andi Kleen <ak@linux.intel.com >
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net >
Cc: Ingo Molnar <mingo@kernel.org >
Cc: Jiri Olsa <jolsa@redhat.com >
Cc: Peter Zijlstra <peterz@infradead.org >
Link: http://lkml.kernel.org/n/1404160127-7475-1-git-send-email-ydroneaud@opteya.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org >
2014-07-18 09:09:34 +02:00
2afd2bcfc3
perf evsel: Add 'immediate' option
...
Add an option to cause a selected event to be enabled immediately when
configured by perf_evsel__config().
This is needed when using the sched_switch tracepoint to follow object
code execution. By having sched_switch enabled immediately the first
sched_switch event precedes the start of other tracing.
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: 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/r/1405332185-4050-34-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-07-16 17:57:37 -03:00
6ff1ce7639
perf evsel: Add 'no_aux_samples' option
...
Add an option to prevent additional samples being added to a selected
event by perf_evsel__config().
This is needed when using the sched_switch tracepoint to follow object
code execution. Since sched_switch will be used only for switch
information, additional sampling is wasteful.
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: 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/r/1405332185-4050-33-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-07-16 17:57:36 -03:00
022c50d09c
perf script: Display PERF_RECORD_MISC_COMM_EXEC flag
...
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: 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/r/1405332185-4050-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com >
2014-07-16 17:57:34 -03:00
Namhyung Kim
Vineet Gupta
Jiri Olsa
Stephane Eranian
Arnaldo Carvalho de Melo
Masami Hiramatsu
Adrian Hunter
Andi Kleen
Yann Droneaud