Messages in this thread | | | Subject | Re: perf: regression with PERF_EVENT_IOC_REFRESH | From | Peter Zijlstra <> | Date | Tue, 24 May 2011 17:11:54 +0200 |
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On Tue, 2011-05-24 at 11:04 -0400, Vince Weaver wrote: > As an aside, I also wasted 6 hours last night finding out that you don't > get signaled on overflow if you don't have a ring-buffer mmap()ed, even > if you never read from the buffer and you only are interested in counting > the number of overflows.
That sounds like something we could fix, let me investigate.
> I should stop complaining though or you'll > start telling me to fix the documentation. Which maybe I would do if I > didn't spend all my time writing code to reproduce problems in the perf > ABI for bisection purposes.
Both are appreciated.
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