Messages in this thread |  | | Date | Thu, 16 Apr 2015 20:55:59 +0200 | From | Peter Zijlstra <> | Subject | Re: [patch 05/10] perf_event_open.2: aux_{head,tail,offset,size} support |
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On Thu, Apr 16, 2015 at 02:15:52PM -0400, Vince Weaver wrote: > +.I aux_size > +needs to be set to the desired buffer size. > +The desired offset and size must be page aligned.
I think we also require the size to be a power of two.
> +These values are then passed to mmap in order to map the AUX buffer. > +Pages in the AUX buffer are included as part of the user mlock > +rlimit as well as the > +.I perf_event_mlock_kb > +allowance.
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