Re: opportunistic tuple freezing
| От | Jeff Janes |
|---|---|
| Тема | Re: opportunistic tuple freezing |
| Дата | |
| Msg-id | f67928030909152056w7d4cbb17o54999ac85028720d@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: opportunistic tuple freezing (Jeff Davis <pgsql@j-davis.com>) |
| Ответы |
Re: opportunistic tuple freezing
|
| Список | pgsql-hackers |
On Mon, Sep 14, 2009 at 2:07 AM, Jeff Davis <pgsql@j-davis.com> wrote:
Under what kind of circumstances/workload to you think this patch is most likely to show its full potential? I can try to test it out, but would like some guidance. I am guessing it is when the anti-wrap around vacuums come due, but that is such a rare event, it could both be hard to test for and also be of limited real-world applicability.
Cheers,
Jeff (Janes)
On Mon, 2009-08-17 at 10:22 -0400, Tom Lane wrote:
> As always with patches that are meant to improve performance,
> some experimental evidence would be a good thing.
I haven't had time to performance test this patch yet, and it looks like
it will take a significant amount of effort to do so. I'm focusing on my
other work, so I don't know if this one is going to be in shape for the
September commitfest.
If someone is interested in doing some performance testing for this
patch, let me know. I still think it has potential.
Under what kind of circumstances/workload to you think this patch is most likely to show its full potential? I can try to test it out, but would like some guidance. I am guessing it is when the anti-wrap around vacuums come due, but that is such a rare event, it could both be hard to test for and also be of limited real-world applicability.
Cheers,
Jeff (Janes)
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