Date: Thu, 20 Jan 2011 18:09:18 +0100 From: Borja Marcos <borjam@sarenet.es> To: jackie wang <jackieit@gmail.com> Cc: freebsd-fs@freebsd.org Subject: Re: Freebsd8.1 ZFS with mfi driver performance Message-ID: <08E2A27C-4564-43F0-898B-00C5C6A7B446@sarenet.es> In-Reply-To: <AANLkTi=AkA0xaGJh4=pZXX5VU57aPsAKeBPQzrZj1zwJ@mail.gmail.com> References: <AANLkTi=AkA0xaGJh4=pZXX5VU57aPsAKeBPQzrZj1zwJ@mail.gmail.com>
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On Jan 20, 2011, at 2:57 PM, jackie wang wrote: > hello ,I have a question.Sorry I have google a lot and have no answer. > I run freebsd 8.1 with zfs file system and mfi driver . > And my problem is when the system started , the speed is fast ,but > after one or two days the system began to slow . > My server main used as a web server ,the ram is 8G. > my uname -a output > FreeBSD xxx 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Dec 20 20:50:20 > CST 2010 root@VS001.vlongbiz.com:/usr/obj/usr/src/sys/xxxCore > amd64 >=20 >=20 > when the system slow there much mermory in wired status about 5GB, and > the system begin to use swap. >=20 > So,my question is why the zfs slow . Please Help ,now the box is in > production env. Maybe you will want to check on the sister freebsd-scsi list. Some = users (me included) have seen some ugly issues at least with what Dell = calls PERC H700 and H800 cards. Check your console for something like this: hi, we keep seeing these timeouts when there is heavy writes to the mfi: ... mfi1: COMMAND 0xffffff80009cd0f0 TIMEOUT AFTER 6564 SECONDS mfi1: COMMAND 0xffffff80009cd0f0 TIMEOUT AFTER 6594 SECONDS mfi1: COMMAND 0xffffff80009cd0f0 TIMEOUT AFTER 6624 SECONDS mfi1: COMMAND 0xffffff80009cd0f0 TIMEOUT AFTER 6654 SECONDS mfi1: COMMAND 0xffffff80009cd0f0 TIMEOUT AFTER 6684 SECONDS mfi1: COMMAND 0xffffff80009ce498 TIMEOUT AFTER 35 SECONDS mfi1: COMMAND 0xffffff80009ce9e8 TIMEOUT AFTER 37 SECONDS mfi1: COMMAND 0xffffff80009cec08 TIMEOUT AFTER 38 SECONDS mfi1: COMMAND 0xffffff80009cc3a8 TIMEOUT AFTER 47 SECONDS mfi1: COMMAND 0xffffff80009ceda0 TIMEOUT AFTER 31 SECONDS mfi1: COMMAND 0xffffff80009ce9e8 TIMEOUT AFTER 46 SECONDS mfi1: COMMAND 0xffffff80009cda80 TIMEOUT AFTER 55 SECONDS ... mfi1: COMMAND 0xffffff80009cd0f0 TIMEOUT AFTER 6624 SECONDS Borja
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