Re: FFSv1 performance on large filesystems

Matthias Scheler <[email protected]> Thu, 24 Mar 2005 00:58:01 +0000

Newsgroups	gmane.os.netbsd.devel.performance,gmane.os.netbsd.devel.kernel
Message-ID	<[email protected]>

On Wed, Mar 23, 2005 at 04:54:12PM -0800, Jason Thorpe wrote:
> >So measured raw write performance:
> >
> >single disk        51MB/Sec
> >RAIDframe        25MB/Sec
> >
> >So it looks to me like RAIDframe really writes to both disk serial and
> >not parallel.
> 
> Is this a RAID-0?  If so, please try ccd(4) and compare.

No, it's RAID-1. But writes should still happen in parallel there.

	Kind regards

-- 
Matthias Scheler                                  http://scheler.de/~matthias/