From: | Bernd Helmle <mailings(at)oopsware(dot)de> |
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To: | Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru> |
Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: LWLock optimization for multicore Power machines |
Date: | 2017-02-21 10:47:33 |
Message-ID: | 1487674053.3143.1.camel@oopsware.de |
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Thread: | |
Lists: | pgsql-hackers |
Am Samstag, den 11.02.2017, 15:42 +0300 schrieb Alexander Korotkov:
> I think it would make sense to run more kinds of tests. Could you
> try set
> of tests provided by Tomas Vondra?
> If even we wouldn't see win some of the tests, it would be still
> valuable
> to see that there is no regression there.
Sorry for the delay.
But here are the results after having run Tomas' benchmarks scripts.
The pgbench-ro benchmark shows a clear win of the lwlock-power-3 patch,
also you see a slight advantage of this patch in the pgbench-rw graph.
At least, i don't see any signifikant regression somewhere.
The graphs are showing the average values over all five runs for each
client count.
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