Messages in this thread | | | Date | Tue, 22 Mar 2022 17:42:57 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH 1/2] perf ftrace: Add -n/--use-nsec option for latency |
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Em Mon, Mar 21, 2022 at 04:46:08PM -0700, Namhyung Kim escreveu: > Sometimes we want to see nano-second granularity. > > $ sudo perf ftrace latency -T dput -a -n sleep 1 > # DURATION | COUNT | GRAPH | > 0 - 1 us | 0 | | > 1 - 2 ns | 0 | | > 2 - 4 ns | 0 | | > 4 - 8 ns | 0 | | > 8 - 16 ns | 0 | | > 16 - 32 ns | 0 | | > 32 - 64 ns | 0 | | > 64 - 128 ns | 1163434 | ############## | > 128 - 256 ns | 914102 | ############# | > 256 - 512 ns | 884 | | > 512 - 1024 ns | 613 | | > 1 - 2 us | 31 | | > 2 - 4 us | 17 | | > 4 - 8 us | 7 | | > 8 - 16 us | 123 | |
Thanks, applied.
- Arnaldo
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