| From: | "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com> |
|---|---|
| To: | "Hannu Krosing" <hannu(at)2ndquadrant(dot)com> |
| Cc: | "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Greg Stark" <greg(dot)stark(at)enterprisedb(dot)com>, "Bruce Momjian" <bruce(at)momjian(dot)us>, "Greg Smith" <gsmith(at)gregsmith(dot)com>, "Julius Stroffek" <Julius(dot)Stroffek(at)sun(dot)com>, pgsql-hackers(at)postgresql(dot)org, "Dano Vojtek" <danielkov(at)gmail(dot)com> |
| Subject: | Re: Multi CPU Queries - Feedback and/or suggestions wanted! |
| Date: | 2008-10-24 13:35:19 |
| Message-ID: | 36e682920810240635s5ced3edcvaa7077dfd13530b5@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Oct 24, 2008 at 7:59 AM, Hannu Krosing <hannu(at)2ndquadrant(dot)com> wrote:
> On Fri, 2008-10-24 at 00:52 -0400, Jonah H. Harris wrote:
>> While we could build an
>> abstract prefetch interface and simply use fadvise for it now (rather
>> than OS-specific code), I don't see an easy win in any case.
>
> When building an abstract interface, always use at least two
> implementations (I guess that would be fadvise on linux and AIO on
> solaris in this case). You are much more likely to get the interface
> right this way.
I agree, I just wasn't sure as to whether Greg's patch supported both methods.
--
Jonah H. Harris, Senior DBA
myYearbook.com
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