From owner-freebsd-stable Thu May 4 22:10: 9 2000 Delivered-To: freebsd-stable@freebsd.org Received: from pericles.IPAustralia.gov.au (pericles.IPAustralia.gov.au [202.14.186.30]) by hub.freebsd.org (Postfix) with ESMTP id 6057437B7CC for ; Thu, 4 May 2000 22:10:05 -0700 (PDT) (envelope-from carl@xena.aipo.gov.au) Received: (from smap@localhost) by pericles.IPAustralia.gov.au (8.9.3/8.9.3) id PAA79208 for ; Fri, 5 May 2000 15:10:03 +1000 (EST) (envelope-from carl@xena.aipo.gov.au) Received: from newton.aipo.gov.au(10.0.100.18) by pericles.IPAustralia.gov.au via smap (V2.0) id xma079193; Fri, 5 May 00 15:09:45 +1000 Received: from localhost (carl@localhost) by newton.aipo.gov.au (8.9.3/8.9.3) with ESMTP id PAA66737 for ; Fri, 5 May 2000 15:13:06 +1000 (EST) (envelope-from carl@xena.aipo.gov.au) X-Authentication-Warning: newton.aipo.gov.au: carl owned process doing -bs Date: Fri, 5 May 2000 15:13:06 +1000 (EST) From: Carl Makin X-Sender: carl@newton.aipo.gov.au To: freebsd-stable@FreeBSD.ORG Subject: AMI MegaRAID performance (was HPDA/DAC960PL errors) In-Reply-To: <200005041805.LAA00975@mass.cdrom.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 4 May 2000, Mike Smith wrote: > That's OK. At this point in time, I don't have any outstanding reports > of problems with the MegaRAID driver in 4-stable. The 4-release version > is capable of locking up the adapter, however. Here is the rawio stats for a 3.4-STABLE box running a Dell PERC2/SC card (I think it's an OEM AMI MegaRAID Express 300). Random read Sequential read Random write Sequential write ID K/sec /sec K/sec /sec K/sec /sec K/sec /sec PERC2/SC 5533.6 344 19268.6 1176 881.6 54 1034.6 63 This is on a Dell PowerEdge 4300, pIII/450 connected via a single bus to 8 x 18Gb LVD disks (1 x hot spare, the rest in 1 array). This is using the amr-stable patch produced by Mike in December last year, with the lockup fix backported from 4.0-STABLE (heh, 2 lines, wasn't hard). We're about to throw this into production. Carl. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message