Bug 247341 - Default TCP/IPV4 congestion control should be CUBIC
Default TCP/IPV4 congestion control should be CUBIC
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
All Linux
low Severity low
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2007-07-07 06:19 EDT by acount closed by user
Modified: 2007-11-30 17:12 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2007-07-16 09:21:54 EDT
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Description acount closed by user 2007-07-07 06:19:06 EDT
NO cubic, highspeed, htcp, hybla, illinois, scalable, vegas, veno, westwood or
yeah. Only reno and bic !!

querida:~ # head /proc/sys/net/ipv4/*_congestion_control

==> tcp_allowed_congestion_control <==
bic reno

==> tcp_available_congestion_control <==
bic reno

==> tcp_congestion_control <==

and please make cubic default. It was changed in 2.6.19, so it must be safe.

Comment 1 acount closed by user 2007-07-07 06:36:47 EDT

they were built as modules, only two missing: illinois and yeah.
Comment 2 Chuck Ebbert 2007-07-09 11:52:15 EDT
We build all of the modules that are available in linux 2.6.21. Illinois and
yeah are 2.6.22 only.

The default has now been changed to cubic in rawhide, we will probably change it
in F7 and FC6 as well.
Comment 3 Chuck Ebbert 2007-07-09 12:10:04 EDT
Changed Fedora 7 to cubic, will be in next release after 1.3255.fc7.

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