[lkml]   [2009]   [Jul]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC][PATCH 5/5] perfcounter: Add support for kernel hardware breakpoints
On Tue, 2009-07-28 at 03:03 +0200, Frederic Weisbecker wrote:
> > Thirdly, we can multiplex perf counters beyond their hardware maximum,
> > something you simply cannot do for a debug interface.
> Again, I'm stuck in what you mean by multiplexing here :-)

If you'd create say 16 breakpoint counters, we'd RR them over the 4
available hardware breakpoints (or less when others are taken by someone

Since its all statistics anyway, we can simply scale the event counts up
by the time-share they received.

 \ /
  Last update: 2009-07-28 09:25    [W:0.067 / U:0.688 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site