On 4/27/17 8:49 PM, Steven Rostedt wrote: > On Thu, 27 Apr 2017 20:13:43 -0600 > David Ahern <dsah...@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 <davi...@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?
