From mboxrd@z Thu Jan  1 00:00:00 1970
From: philsnow@gmail.com (Phil Snowberger)
Date: Tue, 13 Nov 2007 15:26:26 -0500
Subject: [sup-talk] ruby/sup causing lots of wakeups-from-idle
In-Reply-To: <1194830575-sup-5874@south>
References: <6ab4c98f0711111649o3e06c24aq73750c99bc4af248@mail.gmail.com>
	<1194830575-sup-5874@south>
Message-ID: <6ab4c98f0711131226q4772e60fuda2d98fe3d3e5b7d@mail.gmail.com>

On Nov 11, 2007 8:24 PM, William Morgan <wmorgan-sup at masanjin.net> wrote:
> Excerpts from Phil Snowberger's message of Sun Nov 11 16:49:55 -0800 2007:
> > I was wondering if anybody else has a problem with sup/ruby causing
> > lots of wakeups-from-idle?
>
> Does this happen with other multithreaded Ruby apps? Sup uses select()
> for input, and the only persistent threads have multi-second sleep
> times. But I have no idea how that translates down to the OS level, as
> Ruby does its own threading.

I tried raggle to see if it would cause a similar amount of wakeups,
and it does;  Once it settles into a steady state (after it's checked
each feed on startup), it does ~95 wakeups per second, just like sup.

Sorry for what appears to be a false alarm; I'll take this question to
some ruby folks.

Thanks,
--Phil