From: SASADA Koichi <ko1@...>
Date: 2010-11-11T02:14:03+09:00
Subject: [ruby-core:33124] Re: timer thread sleep interval (powertop abuses)

Hi,

(2010/11/11 0:10), Chris Mason wrote:
> powertop reports that ruby is triggering constant wakeups on linux,
> which prevents us from doing proper power management.
> 
> I see a few ideas tossed around in the issue tracker, but it looks like
> they are centered around preventing the timer thread when there is only
> one thread.  We'll still want to cut down on wakeups even when there are
> multiple threads.

Why do you want to reduce timer thread wake-up counts?  Power issues?

(I want to know the pragmatic requirements)

> Is the timer thread required for the threads to function?  Or is it only
> there to deliver signals etc?

The main purpose of the timer thread is thread switching notification.


Regards,
Koichi

-- 
// SASADA Koichi at atdot dot net