Ethernet fast RH8 - Ethernet slow RH9

ethernix · 09:56 AM

Does anyane have any suggestions regarding Ethernet throughput performance between RH8 and RH9? I am using the same system (P4 1.8Ghz and Intel EtherExpress/100). Under RH8 I got 80MB/s (10/100), but now that I installed RH9 (2.4.20-8) I can only get around 11MB/s.

utanja · 17-Apr-2005, 06:34 PM #2

Quote:

Originally Posted by ethernix

Does anyane have any suggestions regarding Ethernet throughput performance between RH8 and RH9? I am using the same system (P4 1.8Ghz and Intel EtherExpress/100). Under RH8 I got 80MB/s (10/100), but now that I installed RH9 (2.4.8-20) I can only get around 11MB/s.

are your RH versions optimized the same way????

ethernix · 18-Apr-2005, 07:10 PM #3

We tried a newer 2.4 kernel (2.4.30) but still no luck.
We then switched to a 2.6.10 kernel and that got us back to 80MB/s on our FibreChannel link. During this time we found that the 2.4 receiver was causing the holdup. Concluded that RedHat 9 2.4 was the problem since RH8 and a 2.6 kernel work just fine on the same hardware.

lynch · 18-Apr-2005, 07:38 PM #4

Thanks for posting the cause of and solution to your problem.

lynch

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