Messages in this thread |  | | Date | Thu, 5 Sep 2002 15:48:35 -0700 | From | Nivedita Singhvi <> | Subject | Re: Early SPECWeb99 results on 2.5.33 with TSO on e1000 |
| |
Quoting jamal <hadi@cyberus.ca>:
> So if i understood correctly (looking at the intel site) the main > value add of this feature is probably in having the CPU avoid > reassembling and retransmitting. I am willing to bet that the real
Er, even just assembling and transmitting? I'm thinking of the reduction in things like separate memory allocation calls and looking up the route, etc..??
> value in your results is in saving on retransmits; I would think > shoving the data down the NIC and avoid the fragmentation shouldnt > give you that much significant CPU savings. Do you have any stats
Why do say that? Wouldnt the fact that youre now reducing the number of calls down the stack by a significant number provide a significant saving?
> from the hardware that could show retransmits etc; have you tested > this with zero copy as well (sendfile) again, if i am right you > shouldnt see much benefit from that either?
thanks, Nivedita
- 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/
|  |