Bug#296408: Performance bug in Linux kernels >=2.6.8
Package: kernel
Version: 2.6.8
Severity: important
Tags: patch
Hello,
Yee-Ting Li had published a bug report about the BIC protocol which is
the congestion control algorithm used in 2.6.8 kernels by default. The
bug report can be found at
http://marc.theaimsgroup.com/?l=linux-net&m=110900271413344&w=2
A different fix offered by Stephen Hemminger is at
http://marc.theaimsgroup.com/?l=linux-netdev&m=110902672620626&w=2
The ChangeSet committed is by Stephen Hemminger can be found at
http://linus.bkbits.net:8080/linux-2.5/cset@1.2081?nav=index.html|ChangeSet@-1d
I think this fix is important since the performance of the BicTCP
algorithm is far below what can be achieved, as well as being unfriendly
to other TCP streams.
In addition to that fix I'd recommend considering disabling BIC by
default since it is still an experimental algorithm.
Baruch
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