rtsig on Opteron

Brad Fitzpatrick brad@danga.com
Mon, 15 Mar 2004 09:39:52 -0800 (PST)

rtsig is an absolute piece of shit interface.  Two smart people tried to
make it work with libevent and spent a lot of time working on it but never
got anywhere because it's just so horribly broken.

I thought the libevent maintainer disabled it.  :/  You really shouldn't
be using it.

Just use poll/select.  CPU usage will be slightly higher.

On Mon, 15 Mar 2004, Jason Titus wrote:

> In our ongoing fun of getting memcached working well on x86_64, I have
> discovered that rtsig doesn't pass libevent's REGRESS tests on RHEL
> x86_64.  It does on plain old x86 RHEL.  Anyone have any rtsig advice?
> Has it changed in recent 2.4 kernels?  I can find VERY little
> information on it that isn't from 1999-2000.
> Is rtsig even worth looking into?  I am just trying to find a way to
> use one of the high performance event systems on a relatively supported
> kernel.  epoll does not patch cleanly to the RHEL kernel, and I don't
> think we are willing to run a 2.6 kernel.
> Thanks for any info,
> Jason.