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

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From: Arjan van de Ven <arjan@...>
To: Ingo Molnar <mingo@...>
Cc: Pardo <pardo@...>, <akpm@...>, <hugh@...>, <linux-mm@...>, <linux-kernel@...>, <briangrant@...>, <cgd@...>, <mbligh@...>, Ulrich Drepper <drepper@...>, Linus Torvalds <torvalds@...>, Thomas Gleixner <tglx@...>, H. Peter Anvin <hpa@...>
Subject: Re: pthread_create() slow for many threads; also time to revisit 64b context switch optimization?
Date: Wednesday, August 13, 2008 - 9:35 am

On Wed, 13 Aug 2008 12:44:45 +0200
Ingo Molnar <mingo@elte.hu> wrote:



I would go for 1) clearly; it's the cleanest thing going forward for
sure.



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Messages in current thread:
Re: pthread_create() slow for many threads; also time to rev..., Pardo, (Tue Aug 12, 8:45 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Wed Aug 13, 6:44 am)
Re: pthread_create() slow for many threads; also time to rev..., Arjan van de Ven, (Wed Aug 13, 9:35 am)
Re: pthread_create() slow for many threads; also time to rev..., Ulrich Drepper, (Wed Aug 13, 10:21 am)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Wed Aug 13, 10:25 am)
Re: pthread_create() slow for many threads; also time to rev..., Ulrich Drepper, (Wed Aug 13, 10:36 am)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Wed Aug 13, 11:10 am)
Re: pthread_create() slow for many threads; also time to rev..., Andi Kleen, (Wed Aug 13, 4:42 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Fri Aug 15, 8:43 am)
Re: pthread_create() slow for many threads; also time to rev..., Andi Kleen, (Fri Aug 15, 9:33 am)
Re: pthread_create() slow for many threads; also time to rev..., Andrew Morton, (Wed Aug 13, 4:56 pm)
Re: pthread_create() slow for many threads; also time to rev..., Andi Kleen, (Wed Aug 13, 5:46 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ulrich Drepper, (Wed Aug 13, 11:21 am)
Re: pthread_create() slow for many threads; also time to rev..., H. Peter Anvin, (Wed Aug 13, 12:05 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Wed Aug 13, 11:40 am)
Re: pthread_create() slow for many threads; also time to rev..., Ulrich Drepper, (Wed Aug 13, 11:55 am)
Re: pthread_create() slow for many threads; also time to rev..., Linus Torvalds, (Wed Aug 13, 1:09 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ulrich Drepper, (Wed Aug 13, 2:04 pm)
Re: pthread_create() slow for many threads; also time to rev..., Arjan van de Ven, (Wed Aug 13, 2:16 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ulrich Drepper, (Wed Aug 13, 2:22 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Wed Aug 13, 12:02 pm)
Re: pthread_create() slow for many threads; also time to rev..., Jamie Lokier, (Fri Aug 15, 11:54 am)
Re: pthread_create() slow for many threads; also time to rev..., Ulrich Drepper, (Fri Aug 15, 1:13 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Fri Aug 15, 1:19 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ulrich Drepper, (Fri Aug 15, 1:23 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Fri Aug 15, 3:00 pm)
Re: pthread_create() slow for many threads; also time to rev..., Ingo Molnar, (Fri Aug 15, 12:03 pm)