[PATCH] Add benchmarking-only mode to the test suite
Tobias Grosser
tobias at grosser.es
Tue May 20 08:45:14 PDT 2014
On 20/05/2014 15:54, Yi Kong wrote:
> It's a really strange test case. The spikes disappear when I measure
> cache/TLB misses using perf.
Yes, understanding these performance changes would be very interesting.
There are big spikes but they seem to appear only under certain
conditions. I checked with your latest results and just using perf/CPU
pinning does not seem to remove them. If watching TLP misses fixes them
that seems to suggest Hal's suggestion may go into the right direct.
As a "solution" could we just add the TLP tracking to the perf command
we are currently running?
Cheers,
Tobias
More information about the llvm-commits
mailing list