Messages in this thread | | | Date | Mon, 15 Dec 2008 21:58:10 +0100 | From | "stephane eranian" <> | Subject | Re: [patch] Performance Counters for Linux, v3 |
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Hi,
On Mon, Dec 15, 2008 at 12:13 AM, Ingo Molnar <mingo@elte.hu> wrote: > We've implemented the essence of these variants, with sharing the resource > being the sane default, and with the sysadmin also having a configuration > vector to reserve the resource to himself permanently. (There could be > more variations of this.) > Reading the v4 code, it does not appear the sysadmin can specify which resource to reserve. The current code reserves a number of counters. This is problematic with hardware where not all counters can measure everything, or when not all PMU registers are counters.
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