Horton

Re: pg_dump and thousands of schemas

Tatsuo Ishii <ishii@postgresql.org>

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From: Tatsuo Ishii <ishii@postgresql.org>
To: shortcutter@googlemail.com
Cc: pgsql-performance@postgresql.org, pgsql-hackers@postgresql.org
Date: 2012-05-31T14:07:57Z
Lists: pgsql-hackers, pgsql-performance

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Teach AbortOutOfAnyTransaction to clean up partially-started transactions.

> On Thu, May 31, 2012 at 10:45 AM, Tatsuo Ishii <ishii@postgresql.org> wrote:
>> Just for record, I rerun the test again with my single-LOCK patch, and
>> now total runtime of pg_dump is 113 minutes.
>> 188 minutes(9.0)->125 minutes(git master)->113 minutes(with my patch).
>>
>> So far, I'm glad to see 40% time savings at this point.
> 
> I see only 9.6% savings (100 * (113/125 - 1)).  What am I missing?

What I meant was (100 * (113/188 - 1)).
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp