Re: WALInsertLock contention - Mailing list pgsql-hackers

From Tatsuo Ishii
Subject Re: WALInsertLock contention
Date
Msg-id 20110217.134730.380231797310348571.t-ishii@sraoss.co.jp
Whole thread Raw
In response to Re: WALInsertLock contention  (Stephen Frost <sfrost@snowman.net>)
List pgsql-hackers
>> Not sure.  Do you have a link to the archives, or any idea when this
>> discussion occurred/what the subject line was?
> 
> They presented at PgCon a couple of years in a row, iirc..
> 
> http://www.pgcon.org/2007/schedule/events/16.en.html

Yes, this one. On page 18, they talked about their customized version
of PostgreSQL called "Postgres 8.2.4-uis":

Change WALInsertLock access $(Q#|(B Using SpinLockAcquire () as WALInsertLock locked most of time $(Q#|(B
Consideringa queue mechanism for WALInsertLock
 

I'm not sure if they brought their patches to public or not though...
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp


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