linux-kernel - Re: pthread_create() slow for many threads; also time to revisit 64b context switch optimization?

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Message-ID: <alpine.LFD.1.10.0808131007530.3462@nehalem.linux-foundation.org>
Date:	Wed, 13 Aug 2008 10:09:32 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ulrich Drepper <drepper@...hat.com>
cc:	Ingo Molnar <mingo@...e.hu>,
	Arjan van de Ven <arjan@...radead.org>,
	akpm@...ux-foundation.org, hugh@...itas.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, briangrant@...gle.com,
	cgd@...gle.com, mbligh@...gle.com,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: pthread_create() slow for many threads; also time to revisit
 64b context switch optimization?



On Wed, 13 Aug 2008, Ulrich Drepper wrote:
> 
> The real problem is: what to do if somebody complains?

Ulrich, I don't understand why you worry more about a _potential_ (and 
fairly unlikely) complaint, than about a real one today.

Thinking ahead may be good, but you take it to absolutely ridiculous 
heights, to the point where you make potential problems be bigger than 
-actual- problems.

		Linus
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