Rick Jones wrote: > Vlad Yasevich wrote: >> Rick Jones wrote: >> >>>> It is the reverse - GSO will segment one super-packet just before >>>> calling >>>> the driver so that the stack is traversed only once. In my case, I am >>>> trying to send out multiple skbs, possibly small packets, in one shot. >>>> GSO will not help for small packets. >>> >>> If there are small packets that implies small sends, which suggests that >>> they would be coalesced either implicitly by the Nagle algorithm or >>> explicitly with TCP_CORK no? >>> >>> rick jones >>> - >> >> >> May be for TCP? What about other protocols? > > There are other protocols?-) True, UDP, and I suppose certain modes of > SCTP might be sending streams of small packets, as might TCP with > TCP_NODELAY set. > > Do they often queue-up outside the driver?
Not sure if DCCP might fall into this category as well... I think the idea of this patch is gather some number of these small packets and shove them at the driver in one go instead of each small packet at a time. I might be helpful, but reserve judgment till I see more numbers. -vlad - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
