Bug 9350

Summary: 2.6.24-rc2: Network commit causes SLUB performance regression with tbench
Product: Networking Reporter: Rafael J. Wysocki (rjwysocki)
Component: OtherAssignee: Herbert Xu (herbert)
Status: CLOSED CODE_FIX    
Severity: normal CC: clameter, herbert, nickpiggin
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.24-rc2 Subsystem:
Regression: Yes Bisected commit-id:
Bug Depends on:    
Bug Blocks: 9243    

Description Rafael J. Wysocki 2007-11-11 11:12:19 UTC 
Subject         : 2.6.24-rc2: Network commit causes SLUB performance regression
with tbench
Submitter       : Christoph Lameter <clameter@sgi.com>
References      : http://lkml.org/lkml/2007/11/9/246
Handled-By      : Nick Piggin <nickpiggin@yahoo.com.au>
Comment 1 Rafael J. Wysocki 2007-11-11 11:14:59 UTC 
Caused by:

commit deea84b0ae3d26b41502ae0a39fe7fe134e703d0
Author: Herbert Xu <herbert@gondor.apana.org.au>
Date:   Sun Oct 21 16:27:46 2007 -0700

    [NET]: Fix SKB_WITH_OVERHEAD calculation
Comment 2 Herbert Xu 2007-11-14 22:07:42 UTC 
Fixed by:

commit fb93134dfc2a6e6fbedc7c270a31da03fce88db9
Author: Herbert Xu <herbert@gondor.apana.org.au>
Date:   Wed Nov 14 15:45:21 2007 -0800

    [TCP]: Fix size calculation in sk_stream_alloc_pskb