| From: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
|---|---|
| To: | sfrost(at)snowman(dot)net |
| Cc: | robertmhaas(at)gmail(dot)com, ishii(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: WALInsertLock contention |
| Date: | 2011-02-17 04:47:30 |
| Message-ID: | 20110217.134730.380231797310348571.t-ishii@sraoss.co.jp |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | 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
#| Using SpinLockAcquire () as WALInsertLock locked most of time
#| Considering a 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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