Messages in this thread | | | Date | Sun, 9 Dec 2001 22:46:13 +1100 | From | Anton Blanchard <> | Subject | Re: [Lse-tech] [RFC] [PATCH] Scalable Statistics Counters |
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> | > ...which may be true for 4-ways and even 8-ways but when you get to > | > 32-ways and greater, you start seeing cache problems. That was the > | > case on AIX and per-cpu counters was one of the changes that helped > | > get the spectacular scalability on Regatta. > | > | I agree there are large areas of improvement to be done wrt cacheline > | ping ponging (see my patch in 2.4.17-pre6 for one example), but we > | should do our own benchmarking and not look at what AIX has been doing. > > Oh, please! You voiced an opinion. I presented facts. Nobody suggested > we should not measure on Linux. As a matter of fact, I suggested that > Kiran does tests on the real counters and he said he would.
Exactly, show me where the current problem is and I will benchmark it on a 16 way linux/ppc64 machine. Your comments are opinions too unless you have some figures to back them up :)
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