Re: 7.52 second kernel compile

[Dave Jones]

On Tue, Mar 19, 2002 at 10:52:40AM +1100, Paul Mackerras wrote:
 > The G4 has 4 performance monitor counters that you can set up to
 > measure things like ITLB misses, DTLB misses, cycles spent doing
 > tablewalks for ITLB misses and DTLB misses, etc.
 > What I need to do now is
 > to put some better infrastructure for using those counters in place
 > and try your program using those counters instead of the timebase.

 Sounds like a good candidate for the first non-x86 port of oprofile[1].
 Write the kernel part, and all the nice userspace tools come for free.
 There are also a few other perfctr abstraction projects, which are
 linked off the oprofile pages somewhere iirc.

[1] http://oprofile.sf.net

-- 
| Dave Jones.        http://www.codemonkey.org.uk
| SuSE Labs