| From: | Sergey Koposov <koposov(at)ast(dot)cam(dot)ac(dot)uk> |
|---|---|
| To: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
| Cc: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: slow dropping of tables, DropRelFileNodeBuffers, tas |
| Date: | 2012-06-07 13:12:18 |
| Message-ID: | alpine.LRH.2.02.1206071358220.29442@calx046.ast.cam.ac.uk |
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| Thread: | |
| Lists: | pgsql-hackers |
On Tue, 5 Jun 2012, Simon Riggs wrote:
>>> Sounds less good and we'd need reasonable proof it actually did
>>> anything useful without being dangerous.
>>
>> Doing an initial unlocked test speeds things up another 2.69 fold (on
>> top of 3.55 for your patch) for me, with 1GB of shared buffers. That
>> seems like it should be worthwhile.
>>
>> How do we go about getting reasonable proof that it is safe?
>
> That's enough for me.
So is it planned to apply that patch for 9.2 ?
Thanks,
S
*****************************************************
Sergey E. Koposov, PhD, Research Associate
Institute of Astronomy, University of Cambridge
Madingley road, CB3 0HA, Cambridge, UK
Tel: +44-1223-337-551 Web: http://www.ast.cam.ac.uk/~koposov/
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