> > >>-----Original Message----- >>From: Jagdish Motwani [mailto:[email protected]] >>Sent: Friday, April 19, 2013 2:48 AM >>To: [email protected] >>Subject: Re: [E1000-devel] ixgbe 82599 latency tunning >> >> >>Resending the table-- trying to format it properly >> >>Rx ring Tx ring rx_pb_size flow control latency >>512 512 512 rx on tx on 7128 >>64 128 512 rx on tx on 6346 >>512 512 512 rx off tx off 1874 >>64 128 512 rx off tx off 667 >>64 128 128 rx off tx off 230 >>32 128 128 rx off tx off 150 >>16 128 128 rx off tx off 110 > > What test are you using to measure the latency? > > What is the latency in the above table measured in (trans/sec)? > > You may want to experiment with the InterruptThrottleRate parameter > (ethtool -C ethX rx-usecs) to increase the interrupt threshold, which > should help with latency. > > Thanks, > Emil > > >
I am using spirent test center for the test. Results are in micro seconds. I did tried Interrupt Throttling earlier but was unable to lower the latency. To be more specific, I had tried rx-usecs 0. (All the results above are with rx-usecs 1) Regards, Jagdish Motwani ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
