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Groups > linux.kernel > #1163697
| From | David Ahern <dsahern@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC PATCH] perf: Add PERF_RECORD_SWITCH to indicate context switches |
| Date | 2015-06-12 02:50 +0200 |
| Message-ID | <pAlkt-5Og-1@gated-at.bofh.it> (permalink) |
| References | <pzt0M-1dG-51@gated-at.bofh.it> <pAbuP-8aB-45@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 6/11/15 8:15 AM, Peter Zijlstra wrote: >> This new PERF_RECORD_SWITCH event does not have those problems >> and it also has a couple of other small advantages. It is >> easier to use because it is an auxiliary event (like mmap, >> comm and task events) which can be enabled by setting a single >> bit. It is smaller than sched:sched_switch and easier to parse. > > Right, so the one wee problem I have is that this only provides sched_in > data, I imagine people might be interested in sched_out as well. Yes and with the option of collecting callchains for sched_out. David -- 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: [RFC PATCH] perf: Add PERF_RECORD_SWITCH to indicate context switches David Ahern <dsahern@gmail.com> - 2015-06-12 02:50 +0200
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