Skip site navigation (1) Skip section navigation (2)

Re: [HACKERS] fsync method checking

From: markw(at)osdl(dot)org
To: manfred(at)colorfullife(dot)com
Cc: tgl(at)sss(dot)pgh(dot)pa(dot)us, josh(at)agliodbs(dot)com, Q(at)ping(dot)be,pgman(at)candle(dot)pha(dot)pa(dot)us, markir(at)paradise(dot)net(dot)nz,pgsql-performance(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] fsync method checking
Date: 2004-03-26 16:09:43
Message-ID: 200403261609.i2QG9l220991@mail.osdl.org (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-performance
On 26 Mar, Manfred Spraul wrote:
> markw(at)osdl(dot)org wrote:
> 
>>Compare file sync methods with one 8k write:
>>        (o_dsync unavailable)  
>>        open o_sync, write       6.270724
>>        write, fdatasync        13.275225
>>        write, fsync,           13.359847
>>  
>>
> Odd. Which filesystem, which kernel? It seems fdatasync is broken and 
> syncs the inode, too.

It's linux-2.6.5-rc1 with ext2 filesystems.

In response to

Responses

pgsql-performance by date

Next:From: Bruce MomjianDate: 2004-03-26 16:54:59
Subject: Re: [HACKERS] fsync method checking
Previous:From: Manfred SpraulDate: 2004-03-26 06:25:53
Subject: Re: [HACKERS] fsync method checking

pgsql-hackers by date

Next:From: Bruce MomjianDate: 2004-03-26 16:54:59
Subject: Re: [HACKERS] fsync method checking
Previous:From: Tom LaneDate: 2004-03-26 15:09:21
Subject: Re: Per database users/admins, handy for database virtual hosting...

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group