> Yes, we do. In fact, the difference between FreeBSD and Linux is
> greater
> than 2x. On equivalent processors, we demonstrated 1900 polygraph
> req/sec
> on FreeBSD 4.2 and 720 polygraph req/sec on a 2.2.14 Linux kernel. It's
> also worth mentioning that the response time for FreeBSD at 1900 req/sec
> was faster than Linux at 720 req/sec.
>
> There are other advantages to FreeBSD, but kqueue is definitely
> at the top of the list.
>
> Alan
What would it take to get Linus to give the nod to an implementation conforming
to the kqueue API? I remember him saying that he only wanted it to work for
file descriptors, and to only allow one kqueue per process - neither of which I
agree with. The abstraction penalty for the capability of multiple filter types
and kqueue-as-selectable-fd is as minimal as a table lookup and a pointer
indirection. If the kqueue API is overengineered, well, then, so is the
Berkeley Sockets API.
--
Jonathan Graehl
http://jonathan.graehl.org/
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