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Tuning maxvnodes for better system peformance
Something doesn't jive here though. I am a prime candidate for this - with over 1.2G of RAM. Following the info at the discussions, I tested to see if it would be beneficial using these commands:
First to see if the change will be beneficial, wait unto your system is being sluggish and in a terminal window do the following commands: pstat -T sysctl kern.maxvnodesThe numbers came up almost identical - I think a difference of 1. So I hardwired the tuning to the /etc/rc as explained and then rebooted. Running the test after rebooting and enabling this hack I get:
% pstat -T WOW!... a difference of 6... is that supposed to be good??? I personally have not really noticed any performance increase either.
Tuning maxvnodes for better system peformance
I'm also suspicious about this hint. It seems to me that unless you are doing something that requires an extremely large number of files open at once (or open repeatedly), a very large value of maxvnodes is not going to help. It can even hurt as the ram used to hold all those vnodes could be put to other use.
Tuning maxvnodes for better system peformance
I'm a bit suspicious of this too. I've tried it out and from everything I can tell, the number of vnodes in use will never shrink significantly. I think I only saw vnode shrinkage when I actually deleted recently touched files. |
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