RE: optimize __gp location

David Mosberger
2005-01-25T19:51:46Z

>>>>> On Tue, 25 Jan 2005 11:44:34 -0800, "Chen, Kenneth W" <kenneth.w.chen@intel.com> said:

Ken> I don't have any benchmark result off hand. But digging through recent
Ken> data, for a well known db benchmark, GOT table access account to about
Ken> 4% of total memory latency in the kernel.

4% actual CPU stalls or 4% of potentially overlapped stalls?

I'm not trying to be difficult. It's just that GOT optimizations so
far haven't really paid off in any significant way in the benchmarks I
tried. You'd think for some benchmarks it does make a significant
difference (even just based on a cache-pollution argument), I just
haven't seen it yet...

--david