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I have recently back-ported the rfc2988bis changes (initRTO=1 and fallack) to the redhat 2.6.32 kernel – find the patch on my github account at @ https://github.com/alouche/redhat-2.6.32-kernel-patches/blob/master/rfc2988bis.patch On short lived connections with a lot of 3WHS, a lower initial RTO will improve 3WHS latency by 2*2000ms*X% (X% being the average of packet drops of a specific [...]
Since the 2.6.23 kernel, the Linux kernel process scheduler previously O(1) was replaced by CFS – a Completely Fair Scheduler. CFS uses a red-black tree as data-structure and unlike previous Unix process scheduler does not account a traditional time slice of process execution but accounts what is referred as the process virtual runtime, expressed in [...]