On Sun, Mar 20, 2011 at 09:34:24AM -0400, Jerry Feldman wrote:
On 03/19/2011 02:21 PM, Per Jessen wrote:
I'm trying to optimize some assembler code
for which I'm measuring
runtime over a <slice of data>. Is there any easy (in C or assembler )
access to counters for pipeline stalls and cache misses available? At
some point I'd also like to look at context switches, although I'm not
sure how I might affect those.
Valgrind can give you some of what you want. I've also used Intel's
Vtune. The Linux Trace Toolkit may also be useful. But, I think for
things like pipeline stalls you would need one of the profiling tools.
oprofile is also at this kind of lowlevel.
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