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Groups > linux.kernel > #1289656
| From | David Ahern <dsahern@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) |
| Date | 2015-12-11 16:10 +0100 |
| Message-ID | <qExuy-69x-11@gated-at.bofh.it> (permalink) |
| References | <qE4iS-39l-7@gated-at.bofh.it> <qE4sy-3sW-9@gated-at.bofh.it> <qE55f-3L0-3@gated-at.bofh.it> <qEr5L-1BY-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 12/11/15 1:11 AM, Ingo Molnar wrote: > > * Namhyung Kim <namhyung@gmail.com> wrote: > >> IIRC David said that thread per cpu seems too much especially on a large system >> (like ~1024 cpu). [...] > > Too much in what fashion? For recording I think it's the fastest, most natural > model - anything else will create cache line bounces. The intrusiveness of perf on the system under observation. I understand there are a lot of factors that go into it. -- 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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[PATCHSET 00/16] perf top: Add multi-thread support (v1) Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
[PATCH/RFC 03/16] perf top: Factor out warnings about kernel addresses and symbols Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
Re: [PATCH/RFC 03/16] perf top: Factor out warnings about kernel addresses and symbols Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-10 20:10 +0100
Re: [PATCH/RFC 03/16] perf top: Factor out warnings about kernel addresses and symbols Namhyung Kim <namhyung@kernel.org> - 2015-12-14 02:50 +0100
Re: [PATCH/RFC 03/16] perf top: Factor out warnings about kernel addresses and symbols Namhyung Kim <namhyung@kernel.org> - 2015-12-14 03:10 +0100
[PATCH/RFC 14/16] perf top: Separate struct perf_top_stats Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
[PATCH/RFC 11/16] perf top: Implement basic parallel processing Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
Re: [PATCH/RFC 11/16] perf top: Implement basic parallel processing Jiri Olsa <jolsa@redhat.com> - 2015-12-14 10:30 +0100
Re: [PATCH/RFC 11/16] perf top: Implement basic parallel processing Jiri Olsa <jolsa@redhat.com> - 2015-12-14 10:40 +0100
Re: [PATCH/RFC 11/16] perf top: Implement basic parallel processing Namhyung Kim <namhyung@kernel.org> - 2015-12-15 03:10 +0100
[PATCH/RFC 01/16] perf top: Delete half-processed hist entries when exit Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
RE: [PATCH/RFC 01/16] perf top: Delete half-processed hist entries when exit 平松雅巳 / HIRAMATU，MASAMI <masami.hiramatsu.pt@hitachi.com> - 2015-12-10 11:00 +0100
Re: [PATCH/RFC 01/16] perf top: Delete half-processed hist entries when exit Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-10 20:00 +0100
[tip:perf/core] perf top: Delete half-processed hist entries when exit tip-bot for Namhyung Kim <tipbot@zytor.com> - 2015-12-14 09:20 +0100
[PATCH/RFC 10/16] perf hist: Add events_stats__add() and hists__add_stats() Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
[PATCH/RFC 16/16] perf tools: Skip dso front cache for multi-threaded lookup Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
[PATCH/RFC 04/16] perf top: Factor out warnings in perf_top__record_precise_ip() Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
[PATCH/RFC 15/16] perf top: Add --num-thread option Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
[PATCH/RFC 09/16] perf tools: Update hist entry's hists pointer Namhyung Kim <namhyung@kernel.org> - 2015-12-10 09:00 +0100
Re: [PATCH/RFC 09/16] perf tools: Update hist entry's hists pointer Jiri Olsa <jolsa@redhat.com> - 2015-12-14 00:30 +0100
Re: [PATCH/RFC 09/16] perf tools: Update hist entry's hists pointer Namhyung Kim <namhyung@kernel.org> - 2015-12-14 03:00 +0100
Re: [PATCH/RFC 09/16] perf tools: Update hist entry's hists pointer Jiri Olsa <jolsa@redhat.com> - 2015-12-14 00:30 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Ingo Molnar <mingo@kernel.org> - 2015-12-10 09:10 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Namhyung Kim <namhyung@gmail.com> - 2015-12-10 09:50 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Ingo Molnar <mingo@kernel.org> - 2015-12-11 09:20 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) David Ahern <dsahern@gmail.com> - 2015-12-11 16:10 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Namhyung Kim <namhyung@kernel.org> - 2015-12-14 02:20 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Peter Zijlstra <peterz@infradead.org> - 2015-12-14 10:30 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Ingo Molnar <mingo@kernel.org> - 2015-12-14 10:40 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) David Ahern <dsahern@gmail.com> - 2015-12-14 16:00 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-14 17:30 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Peter Zijlstra <peterz@infradead.org> - 2015-12-14 17:50 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-14 19:00 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Namhyung Kim <namhyung@kernel.org> - 2015-12-14 17:40 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Peter Zijlstra <peterz@infradead.org> - 2015-12-14 18:00 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Namhyung Kim <namhyung@kernel.org> - 2015-12-14 18:20 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) David Ahern <dsahern@gmail.com> - 2015-12-14 15:50 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Namhyung Kim <namhyung@kernel.org> - 2015-12-14 18:10 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-14 19:00 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Namhyung Kim <namhyung@kernel.org> - 2015-12-14 17:30 +0100
Re: [PATCHSET 00/16] perf top: Add multi-thread support (v1) Peter Zijlstra <peterz@infradead.org> - 2015-12-14 17:50 +0100
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