Re: [PATCH v6 03/11] perf tools report: Support time sort key

Arnaldo Carvalho de Melo
2019-03-11T17:04:57Z

Em Mon, Mar 11, 2019 at 07:44:54AM -0700, Andi Kleen escreveu:
> From: Andi Kleen <ak@linux.intel.com>
>
> Add a time sort key to perf report to display samples for
> different time quantums separately. This allows easier
> analysis of workloads that change over time, and also
> will allow looking at the context of samples.
>
> % perf record ...
> % perf report --sort time,overhead,symbol --time-quantum 1ms --stdio
> ...
> 0.67% 277061.87300 [.] _dl_start
> 0.50% 277061.87300 [.] f1
> 0.50% 277061.87300 [.] f2
> 0.33% 277061.87300 [.] main
> 0.29% 277061.87300 [.] _dl_lookup_symbol_x
> 0.29% 277061.87300 [.] dl_main
> 0.29% 277061.87300 [.] do_lookup_x
> 0.17% 277061.87300 [.] _dl_debug_initialize
> 0.17% 277061.87300 [.] _dl_init_paths
> 0.08% 277061.87300 [.] check_match
> 0.04% 277061.87300 [.] _dl_count_modids
> 1.33% 277061.87400 [.] f1
> 1.33% 277061.87400 [.] f2
> 1.33% 277061.87400 [.] main
> 1.17% 277061.87500 [.] main
> 1.08% 277061.87500 [.] f1
> 1.08% 277061.87500 [.] f2
> 1.00% 277061.87600 [.] main
> 0.83% 277061.87600 [.] f1
> 0.83% 277061.87600 [.] f2
> 1.00% 277061.87700 [.] main

Thanks, applied.