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Bug 463249

Summary: document netdev_budget
Product: Red Hat Enterprise Linux 5 Reporter: Andrew Hecox <ahecox>
Component: kernelAssignee: Stanislaw Gruszka <sgruszka>
Status: CLOSED ERRATA QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: low Docs Contact:
Priority: medium    
Version: 5.4CC: dzickus, emcnabb, sgruszka
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-09-02 08:52:38 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
patch to add netdev_budget to proc.txt none

Description Andrew Hecox 2008-09-22 17:44:08 UTC 
The kernel parameters netdev_budget is not documented in kernel-docs. Since it may have a substantial effect on at least some network loads, it should be.

Eg, for market-data (small packet, UDP) loads:

sz  drops  acks   msgs   mbs
256 129985 163714 293700 601439 # receiver's netdev_budget=5
256 122245 171830 294075 602181 # 10
256 89887 190412 280299 574007  # 20
256 92510 188063 280573 574545  # 30
256 110642 179137 289780 593462 # 40
256 124073 170354 294427 602936 # 50
256 182194 113298 295492 605134 # 100
256 276881 16792 293673 601402  # 1000
256 280287 13851 294139 602389  # 10000

Attaching a small patch to proc.txt with some very simple test.
Comment 1 Andrew Hecox 2008-09-22 17:45:54 UTC 
Created attachment 317392 [details]
patch to add netdev_budget to proc.txt
Comment 2 RHEL Program Management 2009-02-16 15:31:14 UTC 
Updating PM score.
Comment 3 RHEL Program Management 2009-02-16 16:50:37 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.
Comment 9 errata-xmlrpc 2009-09-02 08:52:38 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2009-1243.html