Messages in this thread | | | Date | Thu, 24 Nov 2016 16:27:21 +0100 | From | Jiri Olsa <> | Subject | Re: [PATCH 06/14] perf tools: show NMI overhead |
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On Thu, Nov 24, 2016 at 01:37:04PM +0000, Liang, Kan wrote: > > > > > > On Wed, Nov 23, 2016 at 04:44:44AM -0500, kan.liang@intel.com wrote: > > > From: Kan Liang <kan.liang@intel.com> > > > > > > Caculate the total NMI overhead on each CPU, and display them in perf > > > report > > > > so the output looks like this: > > > > --- > > # Elapsed time: 1720167944 ns > > # Overhead: > > # CPU 6 > > # NMI#: 27 time: 111379 ns > > # Multiplexing#: 0 time: 0 ns > > # SB#: 57 time: 90045 ns > > # > > # Samples: 26 of event 'cycles:u' > > # Event count (approx.): 1677531 > > # > > # Overhead Command Shared Object Symbol > > # ........ ....... ................ ....................... > > # > > 24.20% ls ls [.] _init > > 17.18% ls libc-2.24.so [.] __strcoll_l > > 11.85% ls ld-2.24.so [.] _dl_relocate_object > > ---
how about we display the overhead information same way the main perf output:
CPU NMI NMI time MTX MTX time SB SB time ... ..... ........ ..... ........ ...... ........ 6 27 111379 0 0 57 90045
would be just matter of adding new sort objects
jirka
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