Re: [PATCH] perf_events: improve DS/BTS/PEBS buffer allocation

Peter Zijlstra
2010-09-13T18:42:30Z

On Mon, 2010-09-13 at 20:40 +0200, Stephane Eranian wrote:
> Ok, so can we play the same trick you're playing with the sampling
> buffer, i.e., you use alloc_pages_node() for one page at a time, and
> then you stitch them on demand via SW?

Not for BTS, it wants a linear range, getting the vmalloc vs NMI thing
sorted would be best I think.