[CentOS] Network performance

Vitaly

linux at karasik.org
Thu Dec 6 08:00:46 UTC 2007


I'm running RHEL/CentOS 3 (2.4.21-47.ELsmp) with Broadcom NIC and BASP
bonding (bcm5700 v8.1.55) When network traffic is ~12MB/sec (== ~120K
packets/sec) CPU system load is growing up to 50-60%%.

Yes, I know, that small packets (~100 bytes/packet) are not optimal for
network throughput, but in the short-middle term I cannot re-write our
application.

Are there any network driver / kernel parameters which can help me to
increase network throughput?

Replacing bcm5700 to tg3? Upgrading to RHEL 4 or 5 with kernel 2.6?

Other ideas?

Thanks,

Vitaly
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