Re: Performance instrumentation registers

To: port-sparc64%netbsd.org@localhost
Subject: Re: Performance instrumentation registers
From: uwe%stderr.spb.ru@localhost (Valeriy E. Ushakov)
Date: Thu, 13 Aug 2009 19:42:28 +0000 (UTC)

raymond.meyer%rambler.ru@localhost wrote:

> On UltraSPARC II there are 2 performance instrumentation registers:
[...]
> I need to hack NetBSD kernel or there is a way to load a small
> program in kernel space to unset the bit?

Implementing pmc(9) backend is probably the cleanest approach.

SY, Uwe
-- 
uwe%stderr.spb.ru@localhost                       |       Zu Grunde kommen
http://snark.ptc.spbu.ru/~uwe/          |       Ist zu Grunde gehen

References:
- Performance instrumentation registers
  - From: raymond . meyer

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