[PATCH] linux epoll support

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Hi All,

I've hacked together a patch to Event-1.06 to add epoll support on 
Linux.  Its enabled by adding -DHAS_EPOLL.  I've turned on that switch 
by default in the attached patch.  I've tested it on Fedora Core 3 with 
kernel 2.6.11-1.14_FC3.

I thought about using libevent, but it turned out to be too hard to 
intermingle the event loops.

I'm interested in any feedback that anyone has. Especially any follow up 
assistance with properly detecting if epoll is available on the system 
and enabling it by default.  Do you think this code is suitable with 
putting into the main module? 

Here is a benchmark run with the epoll code enabled on a 1Ghz Intel 
Pentium 3:

 benchmark: 0.08
 Event: 1.06

 perl 5.008007
 uname=Linux synthesis.labs.infogears.com 2.6.11-1.14_FC3 #1 Thu Apr 7 19:23:49 EDT 2005 i686 i686 i386 GNU/Linux
 cc='cc', optimize='-O2'
 ccflags='-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm'

Elapse Time:     99.94% of 11 seconds
Timer/sec:       98.43% (803 total)
Io/sec:          55665.822 (611936 total)
Signals/sec      1.91
Events/sec       59219.892
Null/sec         547318
Event/Null       10.82%

Thanks,

Rusty

-- 
Rusty Conover
InfoGears Inc.
http://www.infogears.com
406-587-5432



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