On Wed, 24 Sep 2008 12:53:46 -0700 (PDT)
David Miller [off-list ref] wrote:

From: Christoph Lameter <redacted>
Date: Wed, 24 Sep 2008 14:10:54 -0500

quoted

Stephen Hemminger wrote:

quoted

These loopback benchmarks are often more sensitive to scheduler than networking
changes.

Just ran a test with real NICs which show the same issues. I guess I need to
get familiar with the network stack and start hacking on it. Sigh.

I feel your pain, I think people are being very unreasonable in their
analysis of your numbers, and for this I want to personally apologize.

It's clearly a networking issue in my eyes, and I wish my co-developers
in networking would treat it as such instead of pushing the blame under
the carpet and saying "scheduler", "SLUB", and all kinds of other bullshit
without any facts on this specific case to back up such accusations.

Is this a one time change, or has networking been getting slower over time?