lkml.org 
[lkml]   [2003]   [Mar]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Delaying writes to disk when there's no need
Hi!

> In all kernels I've tested writes to disk are delayed a long time even when
> there's no need to do so.
>
> A very simple test shows this: on an otherwise idle system, create a tar of
> a NFS-mounted filesystem to a local disk. The kernel starts writing out the
> data after 30 seconds, while a slow and steady stream would be much nicer
> to the system, I think.
>

Well, doing writeback sooner when disks
are idle might be good idea; detecting
if disk is idle might not be too easy, through.

OTOH, raid resync already has some
such detection?
Pavel
--
Pavel
Written on sharp zaurus, because my Velo1 broke. If you have Velo you don't need...

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:34    [W:0.073 / U:2.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site