Re: Optimized pgbench for 8.3
От | Bruce Momjian |
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Тема | Re: Optimized pgbench for 8.3 |
Дата | |
Msg-id | 200704050210.l352AcY02670@momjian.us обсуждение исходный текст |
Ответ на | Optimized pgbench for 8.3 (ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp>) |
Ответы |
Re: Optimized pgbench for 8.3
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Список | pgsql-patches |
Tatsuo, would you please comment on this patch? --------------------------------------------------------------------------- ITAGAKI Takahiro wrote: > The attached is a patch to optimize contrib/pgbench using new 8.3 features. > > - Use DROP IF EXISTS to suppress errors for initial loadings. > - Use a combination of TRUNCATE and COPY to reduce WAL on creating > the accounts table. > > Also, there are some cosmetic changes. > > - Change the output of -v option from "starting full vacuum..." > to "starting vacuum accounts..." in reflection of the fact. > - Shape duplicated error checks into executeStatement(). > > > There is a big performance win in "COPY with no WAL" feature. > Thanks for the efforts! > > Regards, > --- > ITAGAKI Takahiro > NTT Open Source Software Center [ Attachment, skipping... ] > > ---------------------------(end of broadcast)--------------------------- > TIP 5: don't forget to increase your free space map settings -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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