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NFS tuning on Solaris
- Thread starter jaucoin
- Start date
jimbopalmer
Programmer
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Guest_imported
New member
- Jan 1, 1970
- 0
Hi,
Where do you get the %wio's? On disk? On CPU? If you get it on the machines themselves, this has probably nothing to do with NFS. In general, the subdisk system is fast enough to handle requests.
Take a look at the line '/usr/lib/nfs/nfsd -a 16' in /etc/init.d/nfs.server. The '16' value is default and applies to ancient history. The old Supersparc CPU could handle 64 CPU threads per CPU in the system. Try increasing this number to, like, 128 or something. Depending on the amount of RAM, you could take a look at the kernel parameters 'ncsize' and 'ufs_ninode'. Make sure you read about what they do before hacking your kernel. Read 'Sun performance and tuning' by Adrian Cockroft and Richard Pettit. Get the SEtoolit from the sun.com website as well. That's a not to miss tool when trying to tune your boxes
Where do you get the %wio's? On disk? On CPU? If you get it on the machines themselves, this has probably nothing to do with NFS. In general, the subdisk system is fast enough to handle requests.
Take a look at the line '/usr/lib/nfs/nfsd -a 16' in /etc/init.d/nfs.server. The '16' value is default and applies to ancient history. The old Supersparc CPU could handle 64 CPU threads per CPU in the system. Try increasing this number to, like, 128 or something. Depending on the amount of RAM, you could take a look at the kernel parameters 'ncsize' and 'ufs_ninode'. Make sure you read about what they do before hacking your kernel. Read 'Sun performance and tuning' by Adrian Cockroft and Richard Pettit. Get the SEtoolit from the sun.com website as well. That's a not to miss tool when trying to tune your boxes
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