[ofa-general] Re: [PATCH] IB/ipoib: IPOIB CM rx use higher order fragments
Roland Dreier
rdreier at cisco.com
Tue Oct 23 11:35:26 PDT 2007
> In order to reduce the overhead of iterating the fragments of an
> SKB in the receive flow, we use fragments of higher order and thus
> reduce the number of iterations. This patch seams to improve receive
> throughput of small UDP messages.
I don't think we want to do this -- it may be good for benchmarks but
it will hurt reliability, since systems often have highly fragmented
memory so higher-order atomic allocations will fail.
- R.
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