Messages in this thread |  | | Subject | Re: gigabit ethernet small-packet performance | From | Jes Sorensen <> | Date | 07 Nov 2000 20:44:05 +0100 |
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>>>>> "Robert" == Robert Morris <rtm@amsterdam.lcs.mit.edu> writes:
Robert> The short version is that the Intel Pro/1000 seems to be a lot Robert> faster than the Alteon Tigon-II or the SysKonnect card for Robert> small (60-byte) packets. The Intel card can send or receive at Robert> least 500,000 60-byte packets per second (about 1/3 of a Robert> gigabit/second). On the other hand, the Intel Linux driver Robert> requires a lot of hacking to achieve that rate; with the Robert> unmodified driver the board is about half that fast.
I can't comment on the SysKonnect hardware/driver. However as far as the Alteon card is concerned I know there are issues with latency just as it has a relatively high overhead for processing DMA descriptors (as much as 5 micro seconds). The latter is definately going to hurt you if your part of the pissing contest is about 60 byte packets. For real data it is not as much of a problem.
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