Messages in this thread | | | Subject | Re: [PATCH] perf_events: improve DS/BTS/PEBS buffer allocation | From | Peter Zijlstra <> | Date | Mon, 13 Sep 2010 17:24:40 +0200 |
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On Mon, 2010-09-13 at 17:20 +0200, Stephane Eranian wrote:
> That is the case we the sizes you have chosen today. For DS, we > could round up to one page for now.
Markus chose the BTS size, for PEBS a single page was plenty since we do single event things (although we could do multiple for attr.precise_ip < 2).
For DS there's: kmalloc_node(sizeof(struct ds), GFP_KERNEL | __GFP_ZERO, cpu_node(cpu));
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