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/
This archive was generated by hypermail 2b29 : Mon Mar 31 2003 - 22:00:35 EST