On 05/29/12 16:50, Fabien Thomas wrote:
Author: fabient
Date: Tue May 29 14:50:21 2012
New Revision: 236238
URL: http://svn.freebsd.org/changeset/base/236238
Log:
MFC r233628, r234598, r235229, r235831, r226986.
Add software PMC support.
New kernel events can be added at various location for sampling or counting.
This will for example allow easy system profiling whatever the processor is
with known tools like pmcstat(8).
Simultaneous usage of software PMC and hardware PMC is possible, for example
looking at the lock acquire failure, page fault while sampling on
instructions.
Sponsored by: NETASQ
This has broken the PPC build for days now. Please MFC r233635, which
was required to fix it in HEAD and is also required to fix it in
stable/9. Please do make universe always before committing things like this.
-Nathan
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