Messages in this thread | | | Date | Tue, 8 Feb 2000 04:56:44 -0800 | From | "David S. Miller" <> | Subject | Re: Gigabit Linux Server Bottlenecks |
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From: Jes Sorensen <Jes.Sorensen@cern.ch> Date: 08 Feb 2000 13:14:18 +0100
>>>>> "Ingo" == Ingo Molnar <mingo@chiara.csoma.elte.hu> writes:
Ingo> yep, also with jumbo frames (mtu 9000) there is no problem at Ingo> all. Eg. the SysKonnect cards i use do just over 20k IRQs/sec Ingo> when i'm saturating 107MB/sec TCP bandwith - this IRQ load is Ingo> simply not a problem at all for an APIC controller. I've seen Ingo> IRQ rates of 80k/sec as well.
Sorry but thats *BAD* performance by the SK card. I do around 2.5K ints/sec with the Alteon when doing 65MB/sec traffic in one direction with regular sized frames.
If he's getting such bad performance, why is his bandwidth nearly 40MB/sec more than yours :-) So the interrupt mitigation could be tuned a bit more in the SK driver, big deal.
I personally am very impressed with the SK cards from my testing here... whereas I'm not so impressed with the acenic chipset.
Later, David S. Miller davem@redhat.com
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