From: Benjamin Poirier <bpoir...@suse.de> Date: Tue, 7 Jan 2014 10:11:10 -0500
> There are many cases where this feature does not improve performance or even > reduces it. > > For example, here are the results from tests that I've run using 3.12.6 on one > Intel Xeon W3565 and one i7 920 connected by ixgbe adapters. The results are > from the Xeon, but they're similar on the i7. All numbers report the > mean±stddev over 10 runs of 10s. > > 1) latency tests similar to what is described in "c6e1a0d net: Allow no-cache > copy from user on transmit" > There is no statistically significant difference between tx-nocache-copy > on/off. > nic irqs spread out (one queue per cpu) ... > CC: Tom Herbert <therb...@google.com> > Signed-off-by: Benjamin Poirier <bpoir...@suse.de> Looks good, applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
