Date: Mon, 30 Oct 2006 12:03:14 +1030 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Steve Peterson <stevep-hv@zpfe.com> Cc: performance@freebsd.org, Petri Helenius <pete@he.iki.fi> Subject: Re: gvinum raid5 performance seems slow Message-ID: <20061030013314.GD1052@wantadilla.lemis.com> In-Reply-To: <6.2.3.4.0.20061029095927.05833580@localhost> References: <6.2.3.4.0.20061027180329.020bed68@localhost> <4542D941.2070204@centtech.com> <6.2.3.4.0.20061028124559.02105930@localhost> <4543AD35.30205@he.iki.fi> <6.2.3.4.0.20061029095927.05833580@localhost>
next in thread | previous in thread | raw e-mail | index | archive | help
--/3yNEOqWowh/8j+e Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sunday, 29 October 2006 at 11:20:33 -0600, Steve Peterson wrote: > Petri -- thanks for the idea. It would be a good idea to quote it. Following this thread is almost impossible. > I ran 2 dds in parallel; they took roughly twice as long in clock > time, and had about 1/2 the throughput of the single dd. On my > system it doesn't look like how the work is offered to the disk > subsystem matters. Try running rawio. That's what it's for. Greg [more trailing junk omitted. Why do you attach it?] -- See complete headers for address and phone numbers. --/3yNEOqWowh/8j+e Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFFRVZaIubykFB6QiMRAsYsAJ0Y0xdUK2eQNw/VqRdtUqwcRBm8ngCeISaB 8IibjbOZY9oaqQV3nGXI1kE= =7D+4 -----END PGP SIGNATURE----- --/3yNEOqWowh/8j+e--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20061030013314.GD1052>