RE: Gvinum RAID5 performance

From: <freebsd_at_newmillennium.net.au>
Date: Mon, 8 Nov 2004 07:58:32 +1100
> -----Original Message-----
> From: owner-freebsd-current_at_freebsd.org 
> [mailto:owner-freebsd-current_at_freebsd.org] On Behalf Of Lukas Ertl
> Sent: Sunday, 7 November 2004 9:41 PM
> To: freebsd_at_newmillennium.net.au
> Cc: 'Greg 'groggy' Lehey'; freebsd-current_at_FreeBSD.org
> Subject: RE: Gvinum RAID5 performance
> 
> > It seems we are holding back all requests to a currently active 
> > stripe, even if it is just a read and would never write 
> anything back.
> 
> No, only writes are held back.  pbp->bio_driver1 is NULL when it's a 
> normal read.

Ok, my bad. I'll keep looking to see where the bottleneck is.

-- 
Alastair D'Silva           mob: 0413 485 733
Networking Consultant      fax: 0413 181 661
New Millennium Networking  web: http://www.newmillennium.net.au
Received on Sun Nov 07 2004 - 19:56:59 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:38:21 UTC