|
OpenBSD General Other questions regarding OpenBSD which do not fit in any of the categories below. |
|
Thread Tools | Display Modes |
|
|||
OpenBSD NFS server over TCP performance
Hi guys,
I finally nailed this problem which had been bugging me for a few months, so here's my notes in case anyone else gets this. PROBLEM: OpenBSD NFS server, using TCP, is slow - less than 20% the throughput of SMB or SFTP. Observed on OS X, FreeBSD and Linux clients. Switching to UDP solves the throughput issue. What bugged me was one client was connecting over a powerline network link with reliability issues. So UDP was not really an option there After much trial and error I found this: setting rsize, wsize and dsize to 65536 on the client, TCP throughput matched UDP, give or take 5%. The defaults in /usr/src/sys/nfs/nfs.h (on 5.3-STABLE) are set at 8192 - for NFSv2 compatibility? Hope this helps someone. |
Tags |
nfs, nfs over tcp, nfs over udp, nfs performance |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Is openbsd really not so good in performance ? | barti | OpenBSD General | 19 | 23rd August 2012 12:42 PM |
Weeks of searching and no answer yet - is openbsd performance good for web server ? | barti | FreeBSD General | 12 | 20th August 2012 09:06 PM |
ssh server on OpenBSD | MarinosK | OpenBSD General | 4 | 16th February 2011 07:38 PM |
Think you've mastered the art of server performance? Think again. | J65nko | News | 2 | 17th June 2010 10:24 PM |
OpenBSD Impressive pf performance improvement in OpenBSD current | J65nko | News | 0 | 5th January 2010 08:07 PM |