RE: [PATCH 16/18] e1000: add dynamic itr modes

From: Brandeburg, Jesse <hidden>
Date: 2006-11-01 21:55:52

Kok, Auke wrote:
Add a new dynamic itr algorithm, with 2 modes, and make it the default
operation mode. This greatly reduces latency and increases small
packet performance, at the "cost" of some CPU utilization. Bulk
traffic throughput is unaffected.
Thanks to the generous testing of Rick Jones from HP, we have some
externally published numbers to back up this patch. Please see the
updated paper at
ftp://ftp.cup.hp.com/dist/networking/briefs/nic_latency_vs_tput.txt or
http://tinyurl.com/yd2ufj

We would also like to thank Robin Humble for his feedback and input on
this patch.

Testing and comments welcome, particularly from anyone running latency
sensitive testing, where they might want to test with the
"InterruptThrottleRate=1" module parameter.

Jesse
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