netdev - [NET_BATCH] Some perf results

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Date:	Mon, 08 Oct 2007 15:53:24 -0400
From:	jamal <hadi@...erus.ca>
To:	David Miller <davem@...emloft.net>
Cc:	krkumar2@...ibm.com, johnpol@....mipt.ru,
	herbert@...dor.apana.org.au, kaber@...sh.net,
	shemminger@...ux-foundation.org, jagana@...ibm.com,
	Robert.Olsson@...a.slu.se, rick.jones2@...com, xma@...ibm.com,
	gaagaan@...il.com, netdev@...r.kernel.org, rdreier@...co.com,
	peter.p.waskiewicz.jr@...el.com, mcarlson@...adcom.com,
	jeff@...zik.org, mchan@...adcom.com, general@...ts.openfabrics.org,
	kumarkr@...ux.ibm.com, tgraf@...g.ch, randy.dunlap@...cle.com,
	sri@...ibm.com
Subject: [NET_BATCH] Some perf results

Ive attached a small pdf with results. This adds on top of results I
posted yesterday (although i didnt see them reflected on netdev).

1) "batch-ntlst" is the patches posted today that remove the temporary
list in qdisc restart and is derived from this AM net-2.6.24
2) "batch-kern" is result of batching patches posted yesterday that had
the temporary list and is based on net-2.6.24 from yesterday AM
3) "net-2.6.2" is yesterday's AM net-2.6.24 with no changes,

So #1 is not a completely fair comparison with #2 and #3. However,
looking at the logs, the changes that have gone in are unrelated to the
areas i have touched, so i dont expect any effect.

Overall, removing the temporay list from qdisc_restart provides a small
improvement noticeable only at the smaller packet sizes. 

In any case, enjoy.

cheers,
jamal

Download attachment "batch-res2.pdf" of type "application/pdf" (12277 bytes)