Re: Uh, I change my mind about commit_delay + commit_siblings (sort of)

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От Peter Geoghegan
Тема Re: Uh, I change my mind about commit_delay + commit_siblings (sort of)
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Msg-id CAEYLb_W5X20SuECdQPUBXO3TzbryV2DB3WbuYNPoM_G5ri-bzg@mail.gmail.com
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Ответ на Re: Uh, I change my mind about commit_delay + commit_siblings (sort of)  (Tom Lane <tgl@sss.pgh.pa.us>)
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This is a benchmark I performed on the same hardware, for tpc-b.sql,
with a commit_delay of 0 and 4000 for the patch:

http://tpcbdelay.staticloud.com/

There is a rather large improvement in throughput here. Robert
previously complained that our group commit implementation didn't do
very well on that benchmark. This seems to make all the difference.

--
Peter Geoghegan       http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training and Services

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