On Mon, Jul 10, 2006 at 05:23:21PM +0400, Evgeniy Polyakov ([EMAIL PROTECTED])
wrote:
> After week vacations I'm pleased to announce following progress report.
>
> Numbers for small packets (80 bytes) bulk sending:
>
> * netchannel: 57 MB/sec, ~80% CPU usage
> * socket: 22 MB/sec, ~90% CPU usage
>
> Receiving side is netcat server, which dumps received data into
> /dev/null
>
> Actually it is not 100% correct to call that results correct, since
> it uses hackish optimisations, which can lead to broken behaviour for
> non-bulk transfers or transfers over bad lines. If some of them are
> removed, speed drops to 54 MB/sec for 80 bytes packets, and if socket
> analog for NODELAY flag is set, i.e. each packet is immediately being
> sent when it has been written, speed drops down to 16 MB/sec (socket
> with SO_NODELAY was not tested though).
I mean TCP_NODELAY.
Socket code uses nonblocking mode and epoll.
--
Evgeniy Polyakov
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