Michael S. Keller writes:
This host has 1024MB RAM. ncsize would therefore default to 17498. Why would _reducing_ it improve client performance?
I think you will find that ncsize will be four times that on Solaris 2.6. The default changed between 2.5.1 and 2.6.
It's also true that some performance problems, especially on unlinks, could be dramatically alleviated by decreasing ncsize down to less than 30000 if the default came out larger than that. That's with the software as it was a year ago; I haven't taken off the screwdown to 17500 on our 768 MB machines that I put in at that time, so recent patches may have improved things.
Reducing it right down to 8000 does sound overenthusiastic to me.
[Meta-note: I find myself talking about Solaris on a NetApp mailing list! I'm going to get into as much trouble as I did for talking about NetApp's on comp.unix.solaris recently...]
Chris Thompson University of Cambridge Computing Service, Email: cet1@ucs.cam.ac.uk New Museums Site, Cambridge CB2 3QG, Phone: +44 1223 334715 United Kingdom.