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Groups > linux.kernel > #1632508
| From | David Ahern <dsahern@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: perf report warnings on tracepoint events hidden by ui |
| Date | 2017-04-28 05:00 +0200 |
| Message-ID | <tB4it-1kM-9@gated-at.bofh.it> (permalink) |
| References | <tB26Z-8k7-5@gated-at.bofh.it> <tB3cJ-Dx-5@gated-at.bofh.it> <tB3FL-181-1@gated-at.bofh.it> <tB48O-1hm-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 4/27/17 8:49 PM, Steven Rostedt wrote: > On Thu, 27 Apr 2017 20:13:43 -0600 > David Ahern <dsahern@gmail.com> wrote: > >> On 4/27/17 7:41 PM, Steven Rostedt wrote: >>> On Thu, 27 Apr 2017 19:31:12 -0500 >>> David Carrillo-Cisneros <davidcc@google.com> wrote: >>> >>>> When processing tracepoint events, perf report outputs warnings about >>>> field not founds. The warnings are usually hidden by perf report UI >>>> and appear when using the --stdio option. e.g. >>>> >>>> $ perf record -e syscalls:sys_enter_mmap some_load >> >> '-e syscalls' vs raw_syscalls suggests an older kernel -- like RHEL6. > > New kernels have both syscalls and raw_syscalls. The raw_syscalls are > the true tracepoints that the syscalls use. His option works on > 4.11-rc8. What's old is new again? root@kenny-jessie4:~# uname -a Linux kenny-jessie4 4.11.0-rc8+ #258 SMP Thu Apr 27 08:36:06 PDT 2017 x86_64 GNU/Linux root@kenny-jessie4:~# perf list | grep syscalls raw_syscalls:sys_enter [Tracepoint event] raw_syscalls:sys_exit [Tracepoint event] Is an option needed to enable syscalls vs raw_syscalls?
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perf report warnings on tracepoint events hidden by ui David Carrillo-Cisneros <davidcc@google.com> - 2017-04-28 02:40 +0200
Re: perf report warnings on tracepoint events hidden by ui Steven Rostedt <rostedt@goodmis.org> - 2017-04-28 03:50 +0200
Re: perf report warnings on tracepoint events hidden by ui David Ahern <dsahern@gmail.com> - 2017-04-28 04:20 +0200
Re: perf report warnings on tracepoint events hidden by ui Steven Rostedt <rostedt@goodmis.org> - 2017-04-28 04:50 +0200
Re: perf report warnings on tracepoint events hidden by ui David Ahern <dsahern@gmail.com> - 2017-04-28 05:00 +0200
Re: perf report warnings on tracepoint events hidden by ui Steven Rostedt <rostedt@goodmis.org> - 2017-04-28 05:00 +0200
Re: perf report warnings on tracepoint events hidden by ui David Carrillo-Cisneros <davidcc@google.com> - 2017-04-30 19:40 +0200
Re: perf report warnings on tracepoint events hidden by ui Namhyung Kim <namhyung@kernel.org> - 2017-04-28 05:10 +0200
Re: perf report warnings on tracepoint events hidden by ui David Carrillo-Cisneros <davidcc@google.com> - 2017-04-30 19:40 +0200
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