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Groups > linux.kernel > #1182350
| Path | csiph.com!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Jiri Olsa <jolsa@redhat.com> |
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH RFC V2 3/5] perf,tool: partial time support |
| Date | Sun, 12 Jul 2015 15:30:03 +0200 |
| Message-ID | <pLpur-is-13@gated-at.bofh.it> (permalink) |
| References | <pJF0B-6Z-9@gated-at.bofh.it> <pJF0B-6Z-7@gated-at.bofh.it> |
| X-Original-To | kan.liang@intel.com |
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| Approved | robomod@news.nic.it |
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| X-Original-Cc | acme@kernel.org, jolsa@kernel.org, namhyung@kernel.org, ak@linux.intel.com, linux-kernel@vger.kernel.org |
| X-Original-Date | Sun, 12 Jul 2015 15:22:25 +0200 |
| X-Original-Message-ID | <20150712132225.GA1687@krava.redhat.com> |
| X-Original-References | <1436264345-12085-1-git-send-email-kan.liang@intel.com> <1436264345-12085-4-git-send-email-kan.liang@intel.com> |
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| Xref | aioe.org linux.kernel:1182350 |
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On Tue, Jul 07, 2015 at 06:19:03AM -0400, kan.liang@intel.com wrote: > From: Kan Liang <kan.liang@intel.com> > > When multiple events are sampled it may not be needed to collect fine > grained time stamps on all events. The sample sites are usually nearby. > It's enough to have time stamps on the regular reference events. > This patchkit adds the ability to turn off time stamps per event. This > in term can reduce sampling overhead and the size of the perf.data. how is this usable in some perf example? I dont get the correlation between 'refference' and the rest of the events in the report time.. thanks, jirka -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH RFC V2 3/5] perf,tool: partial time support Jiri Olsa <jolsa@redhat.com> - 2015-07-12 15:30 +0200
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