Messages in this thread |  | | Date | Sun, 25 Aug 2002 14:03:05 +0200 | From | Jose Luis Domingo Lopez <> | Subject | Re: serious packet loss in 25Mbps load,frame size 64byte,duration 60 second. tested with smartbits |
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On Sunday, 25 August 2002, at 03:44:38 -0700, Bergs wrote:
> My kernel is 2.4.16. > performance of eepro100 driver 1.23b version. > when the data load is 25% of > 100Mbps,bi-directional,64byte frame size,and the test > duration is 60 second,the test result display that > serious packet loss take place. when the duration > decrease to 10 second,the other test condition matain > unchanged,no packet losss. > The first should be to identify where the problem is. For example, run a "vmstat 1" during the test to see if something looks unreasonable. At 25 Mbps bidirectional with a packet size of 64 bytes, there are nearly 50000 packets coming in and another 50000 going out. If there is an interrupt for each packet sent/received (don't seem to be the case, at least checking default module parameters for eepro100) you system will have to deal with up to 100000 interrupts/second, quite a lot for a slow system.
Hope it (somehow) helps :)
-- Jose Luis Domingo Lopez Linux Registered User #189436 Debian Linux Woody (Linux 2.4.19-pre6aa1) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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