Visit Jeremy's Blog.
Go Back > Forums > Linux Forums > Linux - Server
User Name
Linux - Server This forum is for the discussion of Linux Software used in a server related context.


  Search this Thread
Old 09-20-2011, 01:19 PM   #1
LQ Newbie
Registered: Mar 2007
Location: Atlanta, GA
Distribution: RHEL, CentOS, Ubuntu
Posts: 3

Rep: Reputation: 0
NFS client performance differs by mount point

I have an odd situation. I have a Linux server with an NFS mount over TCP to a NetApp filer. There are various application logging to the /logs mount point, which is where the filer is mounted. lsof /logs shows 250 things are open (exactly 250, if that is significant). When I mount the exact same volume to a temporary directory at the exact same time, my read performance goes from 70KB/s or so to 150+MB/s. A huge, huge difference. I'm at a loss as to why. Do any of you have any ideas?
Old 09-21-2011, 07:17 AM   #2
LQ Newbie
Registered: Nov 2008
Posts: 17

Rep: Reputation: 0
Hey robwicks

Can you provide some more infos, e.g. the output of
in both situations (mounted on /var and mounted on other directory) and the content of /etc/fstab?

Old 09-21-2011, 07:56 AM   #3
Registered: Aug 2010
Location: Beaverton, Oregon, USA
Distribution: Pfsense, Ubuntu, Centos, Fedora, Redhat, Scientfic, MacOS
Posts: 76

Rep: Reputation: 19

When you have the volume mounted on the temporary mount point, are all of the applications logging to it? I expect with so many programs having open files when it's your /log mount point, that you simply have a limited remaining bandwidth to the disk. The question that mr51m0n asked is relevant, in that the mount options can make a difference. But to really compare the two mount points, you must also reproduce all of the traffic.



client, nfs

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
how to mount a nfs mount from linux client to AIX nfs server dennyqian AIX 13 04-11-2016 11:30 PM
[SOLVED] NFS mount fails (times out): NFS server is in DMZ, NFS client is in intranet Hiroshi Linux - Networking 2 05-24-2010 10:22 AM
NFS mount point problem dasuwal Linux - Server 3 03-31-2010 11:17 PM
mount NFS to mount point then share out the mount point ionic_slim Linux - Networking 2 04-20-2008 12:17 PM > Forums > Linux Forums > Linux - Server

All times are GMT -5. The time now is 01:38 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration