Re: Spread checkpoint sync - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Spread checkpoint sync
Date
Msg-id AANLkTikN0MJwcfjQjQifvtepXLnhUfB1Nz6d9-=ZWQEW@mail.gmail.com
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In response to Re: Spread checkpoint sync  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On Mon, Jan 31, 2011 at 12:01 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> 3. Pause for 3 seconds after every fsync.
>
>> I think something along the lines of #3 is probably a good idea,
>
> Really?  Any particular delay is guaranteed wrong.

What I was getting at was - I think it's probably a good idea not to
do the fsyncs at top speed, but I'm not too sure how they should be
spaced out.  I agree a fixed delay isn't necessarily right.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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