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Date: Wed, 20 Nov 2002 14:11:59 -0800
From: Ulrich Drepper <drepper@redhat.com>
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To: Jamie Lokier <lk@tantalophile.demon.co.uk>
CC: Ingo Molnar <mingo@elte.hu>, Linus Torvalds <torvalds@transmeta.com>,
       Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [patch] threading enhancements, tid-2.5.47-C0
References: <Pine.LNX.4.44.0211181303240.1639-100000@localhost.localdomain> <3DDAE822.1040400@redhat.com> <20021120033747.GB9007@bjl1.asuk.net> <3DDB09C2.3070100@redhat.com> <20021120215540.GA11879@bjl1.asuk.net>
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Jamie Lokier wrote:

> I don't buy this argument.  You block signals, do something, unblock
> signals.  There may be a _tiny_ delay in delivering the signal

Tiny?  You said yourself that fork can be expensive.


> - of
> the order of a single system call time, i.e. not significant.  (That
> delay is much shorter than signal delivery time itself).  No signals
> are actually _lost_,

Of course they can get lost.  Normal Unix signals are not queued.


- -- 
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Ulrich Drepper \    ,-----------------'   \ Mountain View, CA 94041 USA
Red Hat         `--' drepper at redhat.com `---------------------------
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