Re: performance degradation on -ac tree

J Sloan (jjs@mirai.cx)
Sun, 22 Apr 2001 13:56:38 -0700


There is a bit more clarity on the performance degradation
issue now - In fact the degradation only appears when
using iptables. It's just that sometime shortly after 2.4.2,
the hit imposed by iptables got worse.

For instance:

netperf results without iptables with iptables
-----------------------------------------------------------------
2.4.2 400 MB/s 330 MB/s
2.4.3-ac10 400 MB/s 250 MB/s

BTW, the stock seawolf kernel gets the highest netperf
results ever seen on this box, around 450 MB/sec,
but with iptables or ipchains module loaded, it falls to
about 270 MB/sec.

Just a data point fyi -

cu

jjs

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