| From: | Manfred Spraul <manfred(at)colorfullife(dot)com> |
|---|---|
| To: | markw(at)osdl(dot)org |
| 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 06:25:53 |
| Message-ID: | 4063CCF1.2030307@colorfullife.com |
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| Lists: | pgsql-hackers pgsql-performance |
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.
--
Manfred
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