Re: hash index improving v3

From: "Alex Hunsaker" <badalex(at)gmail(dot)com>
To: "Zdenek Kotala" <Zdenek(dot)Kotala(at)sun(dot)com>
Cc: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Xiao Meng" <mx(dot)cogito(at)gmail(dot)com>, pgsql-patches(at)postgresql(dot)org, "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>
Subject: Re: hash index improving v3
Date: 2008-09-11 03:45:24
Message-ID: 34d269d40809102045t2f8037a4jfe862264f6f04454@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers pgsql-patches

On Wed, Sep 10, 2008 at 10:27 AM, Alex Hunsaker <badalex(at)gmail(dot)com> wrote:
> On Wed, Sep 10, 2008 at 8:47 AM, Zdenek Kotala <Zdenek(dot)Kotala(at)sun(dot)com> wrote:
>> What locale did you use? It would be nice to have also comparing between C
>> and any UTF8 locale. I think we should see big benefit when non C locale is
>> used.
>
> Err yes this was UTF8, Ill see about doing a C locale.
>

And here it with a C locale:

pgbench -c1 -n -t100000 -f bench.sql
cvs head: tps = 5142.784262
v5: tps = 6169.405965

and just for fun a the same using a btree index
pgbench -c1 -n -t100000 -f bench.sql
cvs head: tps = 5234.680407
v5: tps = 5286.08252

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Alex Hunsaker 2008-09-11 03:49:25 Re: hash index improving v3
Previous Message Josh Berkus 2008-09-11 01:44:11 Re: Proposed patch: make SQL interval-literal syntax work per spec

Browse pgsql-patches by date

  From Date Subject
Next Message Alex Hunsaker 2008-09-11 03:49:25 Re: hash index improving v3
Previous Message Simon Riggs 2008-09-10 21:06:37 Re: [HACKERS] Infrastructure changes for recovery