| From: | "Qingqing Zhou" <zhouqq(at)cs(dot)toronto(dot)edu> |
|---|---|
| To: | pgsql-patches(at)postgresql(dot)org |
| Subject: | Re: [PATCH] Using pread instead of lseek (with analysis) |
| Date: | 2005-10-09 10:58:11 |
| Message-ID: | di98cci4di98cc$29i4$1@news.hub.org@news.hub.org |
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| Lists: | pgsql-patches |
"Martijn van Oosterhout" <kleptog(at)svana(dot)org> wrote
>
> Below is a patch that tries to determine (for linux) if the pread is
> emulated or not (using an autoconf test), and if so use it instead of
> lseek.
Just FYI, this was proposed 2 years ago:
http://archives.postgresql.org/pgsql-patches/2003-02/msg00197.php
The basic problem I read from the above thread is that it does not give
enough performance proofs on *various* platforms.
Regards,
Qingqing
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