Date: Thu, 16 Jun 2011 20:05:21 GMT From: Christian <christian@teleservice.net> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/157929: NFS slow read Message-ID: <201106162005.p5GK5Lmm029111@red.freebsd.org> Resent-Message-ID: <201106162010.p5GKAAJQ082246@freefall.freebsd.org>
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>Number: 157929 >Category: misc >Synopsis: NFS slow read >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Jun 16 20:10:09 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Christian >Release: FreeBSD 8.2-RELEASE >Organization: Teleservice Bredband Skane AB >Environment: FreeBSD xxxxxxx.xxx.xxx 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17 02:41:51 UTC 2011 root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 >Description: Having problem with read over NFS, speed does not exceed 300Mbit in our environment. With SAMBA, SCP and other methods we get 900Mbit-1000Mbit in read throughput but when using NFS there seems to be a problem to exceed 300Mbit. We are using ZFS in our environment but have tried to export a non-ZFS volume with no improvements at all. Write speed is good, so if we reverse mount export in the reversed way on server a instead of server b we can write over NFS (in the same direction as we would read in our earlier tests) with a throughput at 900-1000Mbit. >How-To-Repeat: Running FreeBSD 8.2-RELEASE # /etc/export: /vol1 -maproot=root 192.168.x.x # mount 192.168.x.x:/vol1 /mnt/vol1 >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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