Messages in this thread | | | Date | Mon, 18 Mar 2002 22:35:35 -0500 | From | Jeff Garzik <> | Subject | Re: 7.52 second kernel compile |
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Dave Jones wrote:
>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. >
Maybe this is why drepper doesn't like threaded profiling... he wants us all to use oprofile.
/me ducks and runs....
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