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Date:	Mon, 26 Feb 2007 07:20:53 -0800
From:	Andrew Morton <>
Cc:	"" 
Subject: Fw: [Bugme-new] [Bug 8085] New: performance drop in 2.6.20


Begin forwarded message:

Date: Mon, 26 Feb 2007 07:10:48 -0800
Subject: [Bugme-new] [Bug 8085] New: performance drop in 2.6.20

           Summary: performance drop in 2.6.20
    Kernel Version: 2.6.20
            Status: NEW
          Severity: normal

Most recent kernel where this bug did *NOT* occur:
Distribution: slackware based
Hardware Environment: Xeon + e1000
Software Environment: gcc 3.3.x
Problem Description: noticeable (10-15%) routing and bridging (possibly 
overall) performance drop between - 2.6.20 ( 2.6.21-rc1 too) 
same configs

we are experiencing performance drop on our rather busy(>150kpps >700Mbps in 
one direction) bridge with ebtables and routers (210k routes, >30kpps duplex). 
It's not e1000 issue.

Steps to reproduce:

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