Hi All,
I am running a segment of kmeans benchmark on hadoop in x86.
I find out changeset 10313 (http://reviews.gem5.org/r/2349/) causes that
the number of committed instructions in x86 O3 CPU increases from
2.1 billion to 3.5 billion.
Here is what I did:
1) I run in gem5 O3 CPU at changeset 10299 plus patches mentioned in
http://www.mail-archive.com/gem5-dev@gem5.org/msg11941.html, and the
benchmark
committed 2.1 billion instructions.
2) afterwards, I apply http://reviews.gem5.org/r/2349/, and the
benchmark
committed 3.5 billion instructions.
Could anyone give some information about this patch? I want to look into
this problem.
BTW, there is a huge gap between atomic CPU and O3 CPU while executing
this segment of kmeans benchmark. atomic CPU takes only 340 million
instruction, O3 CPU takes 2.1 billion instructions at changeset 10299.
I also need help with this.
Thanks.
--
Best Regards
Yan Zi
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