| From | Namhyung Kim <> | Date | Sat, 27 Dec 2014 14:32:16 +0900 | Subject | Re: [PATCH 05/37] perf tools: Create separate mmap for dummy tracking event |
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On Sat, Dec 27, 2014 at 1:51 AM, David Ahern <dsahern@gmail.com> wrote: > On 12/24/14 12:15 AM, Namhyung Kim wrote: >> >> When multi file support is enabled, a dummy tracking event will be >> used to track metadata (like task, comm and mmap events) for a session >> and actual samples will be recorded in separate files. >> >> Provide separate mmap to the dummy tracking event. The size is fixed >> to 128KiB (+ 1 page) as the event rate will be lower than samples. I > > > Have you tried stress tests like a kernel compile with -j Ncpus (Ncpus = 16 > or higher)?
Yep, the test results in the cover letter were recorded kernel build with -j 20 on my development machine.
Thanks, Namhyung
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