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Re: Postgresql 8.0 beta 1 - strange cpu usage statistics and slow

From: Gaetano Mendola <mendola(at)bigfoot(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Postgresql 8.0 beta 1 - strange cpu usage statistics and slow
Date: 2004-08-24 16:02:17
Message-ID: cgfoqd$6vk$ (view raw, whole thread or download thread mbox)
Lists: pgsql-generalpgsql-hackers-win32
Shelby Cain wrote:

> --- Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>Ah-hah.  The win32 hackers should confirm this, but
>>my recollection is
>>that sync/fsync are no-ops under Cygwin (one of the
>>several reasons
>>we would never recommend that port for production
>>use).  So this would
>>fit the assumption that the 7.4 code was simply not
> Sounds reasonable.  However, I don't see the same
> performance hit while doing bulk database operations
> (ie: inserts, deletes, updates).  Is that expected
> behavior?  Do vacuum operations fsync()/_commit() more
> often?

I think you have other problems around, see the post where
I did some tests.

Gaetano Mendola

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