On Mar 20 décembre 2005 14:20, David Woodhouse wrote:
On Tue, 2005-12-20 at 14:06 +0100, Nicolas Mailhot wrote:
> I don't know how anaconda handles it but the default raid IO limits are
> very conservative (optimized for background work on a live system)
>
> On a system being created it's probably a better idea to tell the raid
> system to pump as much blocks as possible, since this is a blocking op
> in
> this context and we don't care about anything else.
I think you miss the point. On a file system which is being created, the
bandwidth limits _ought_ to be fairly much irrelevant.
No they're not.
If I remember well during an update anaconda can transform some existing
logical volumes to redundant volumes, so you can have a fairly big mass of
data to transfer.
And the bandwidth limits are *very* conservative. You won't win 5% or even
half the time, sometimes it's a 10x (+) différence.
--
Nicolas Mailhot