From: | yamt(at)mwd(dot)biglobe(dot)ne(dot)jp (YAMAMOTO Takashi) |
---|---|
To: | robertmhaas(at)gmail(dot)com |
Cc: | simon(at)2ndquadrant(dot)com, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: synchronous commit vs. hint bits |
Date: | 2011-12-01 06:29:32 |
Message-ID: | 20111201062932.DF04014A257@mail.netbsd.org |
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Lists: | pgsql-hackers |
hi,
> On Wed, Nov 30, 2011 at 1:37 AM, YAMAMOTO Takashi
> <yamt(at)mwd(dot)biglobe(dot)ne(dot)jp> wrote:
>>> Yes, I would expect that. What kind of increase are you seeing? Is
>>> it causing a problem for you, or are you just making an observation?
>>
>> i was curious because my application uses async commits mainly to
>> avoid frequent fsync. i have no numbers right now.
>
> Oh, that's interesting. Why do you want to avoid frequent fsyncs?
simply because it was expensive on my environment.
> I
> thought the point of synchronous_commit=off was to move the fsyncs to
> the background, but not necessarily to decrease the frequency.
it makes sense.
but it's normal for users to abuse features. :)
YAMAMOTO Takashi
>
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> Robert Haas
> EnterpriseDB: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company
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