| From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
|---|---|
| To: | Josh Berkus <josh(at)agliodbs(dot)com> |
| Cc: | Daniel Loureiro <loureirorg(at)gmail(dot)com>, Vaibhav Kaushal <vaibhavkaushal123(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Anyone for SSDs? |
| Date: | 2010-12-10 23:13:23 |
| Message-ID: | 1292022803.3319.59.camel@jd-desktop |
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| Lists: | pgsql-hackers |
On Fri, 2010-12-10 at 15:08 -0800, Josh Berkus wrote:
> > I believe that PostgreSQL was been developed and optimized for
> > sequential access. To get full advantage of SSDs its necessary to
> > rewrite almost the whole project - there are so much code written with
> > the sequential mechanism in mind.
>
> You can believe whatever you want, that doesn't make it true.
Or more productively.
Actually, the only (that I know of) optimized for sequential access code
we have would be for the xlogs. All of the page writing within the
cluster would be random, as would all logging outside of the WAL itself.
Sincerely,
Joshua D. Drake
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