Tuning for router performance
Paul Civati
paul at xciv.org
Tue Apr 19 13:56:03 PDT 2005
In article <MDEHLPKNGKAHNMBLJOLKEEKADDAB.davids at webmaster.com>,
davids at webmaster.com ("David Schwartz") writes:
>> I'm starting to hit errors at 150Kpps.
> I'm not sure why you're hitting errors at that speed. But here are
> a few suggestions:
Sorry - I left out a key piece of information, as I'm testing PPS
rather than throughput I'm using 64byte packets.
>> options HZ=1000 #for polling
> That's too low. 2000 is the minimum you should consider.
Thanks, I will try that and do some more testing.
> You probably want:
>
> kern.random.sys.harvest.ethernet=0
> kern.random.sys.hervest.interrupt=0
I tried these in my initial test, but they didn't seem to make any
difference for me. I'll try them in combination with the above.
> What are your current values for vm.kmem_size and vm.kmem_size_max?
vm.kmem_size: 335544320
vm.kmem_size_max: 335544320
-Paul-
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