On Wed, Mar 22, 2000 at 04:39:14PM -0800, Keith Brown wrote:
I bet we would see a significant speed increase if we upped it, particularly with the large regressions being done on this Netapp.
The chances are probably good, although mileages can vary.
But, can I just log in and change the [nfs.udp.xfersize] value?
Yes you can. There is no need to reboot the filer or anything.
Will that affect existing mounts, and at what point would the new blocksize take effect?
No, it won't effect existing mounts. You will have to pick your moment to unmount and remount your file systems after setting this parameter, in order for the new configuration to take effect for your various clients.
Someone help me out on the proper way to do this, and let me know if doing this causes harm in any way.
Well, set the option, and try one client first (umount and remount its file systems with "-o vers=3,proto=udp,rsize=32768,wsize=32768" etc..., so you're certain of what you're getting). If you find it helps performance, then go to town. :-)
Even with the settings as above, I'm getting a worse by about factor of 2-3 performance on Solaris client, compared to Linux clients. Can any1 explain that? I also used Postmark to compare performance.
Thanks
Igor