linux-kernel - Re: per-thread rusage

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Message-ID: <20070501223440.GT26598@holomorphy.com>
Date:	Tue, 1 May 2007 15:34:40 -0700
From:	Bill Irwin <bill.irwin@...cle.com>
To:	Theodore Tso <tytso@....edu>
Cc:	Ulrich Drepper <drepper@...il.com>,
	Bill Irwin <bill.irwin@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Eric Dumazet <dada1@...mosbay.com>,
	linux-kernel@...r.kernel.org, wli@...omorphy.com
Subject: Re: per-thread rusage

On Tue, May 01, 2007 at 06:27:24PM -0400, Theodore Tso wrote:
> 	There are two ways of implementing this.  One is to have the
> JVM periodically poll using a pthread_getrusage() interface.  A better
> choice might be some kind of per-thread CPU limit, that would result
> in a thread-specific SIGXCPU signal.  But there are no interfaces
> today that do anything like this.
> 	Do you have any thoughts or preferences about how this might
> be done, if we tried to about doing something like a per-thread
> SIGXCPU functionality?  If not, pthread_getrusage() might be
> sufficient, if not the most efficient way of doing things.

I just so happen to think we should implement a variety of CPU resource
limits beyond what we now do, so this, too, interests me.


-- wli
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