Re: [PATCH] epoll more scalable than poll

Martin Waitz
2002-10-28T20:50:49Z

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hi :)

On Mon, Oct 28, 2002 at 11:14:19AM -0800, Hanna Linder wrote:
> The results of our testing show not only does the system call
> interface to epoll perform as well as the /dev interface but also that epoll
> is many times better than standard poll. No other implementations of poll
> have performed as well as epoll in any measure. Testing details and results
> are published here, please take a minute to check it out: http://lse.sourceforge.net/epoll/index.html
how does this compare to the kqueue mechanism found in {Free,Net}BSD?
(see http://people.freebsd.org/~jlemon/papers/kqueue.pdf)

i especially like their combined event update/event wait,
needing only one syscall per poll while building a changelist in
userspace...

a replacement for poll/select is _really_ needed.
but i think we should use existing interfaces if possible,
to reduce the changes needed in userspace.

--
CU, / Friedrich-Alexander University Erlangen, Germany
Martin Waitz // [Tali on IRCnet] [tali.home.pages.de] _________
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