I want to throttle down interrupt processing due incoming TCP traffic between two VMs. I'm not hitting speeds documented by VMware of 27Gb/sec and interrupts are running 50K/second, so I wanted to reduce the speed of interrupt processing to try and increase bandwidth. (this is ESX 4.1 with VMXNET3 ) The parameter intr_throttling is documented as modifying the interrupt handling: http://www.solarisinternals.com/wiki/index.php/Networks I changed it from 200 to 20000 but the interrupt rate for the same throughput stays the same around 50K/sec. I set the parameter in /etc/system but I don't see any way to check it with mdb or ndd. Is there a way to verify it's current value?

link|improve this question

80% accept rate
also tried adding the parameter to /kernel/drv/ixgbe.conf but still same throughput to interrupt ratio. Wish there was a way to check the value. – Kyle Hailey Nov 11 '11 at 6:00
feedback

Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook.

Your Answer

 
or
required, but never shown

Browse other questions tagged or ask your own question.