Home » Mailing list archives » linux-kernel » 2008 » August » 15

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

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: Ulrich Drepper
Subject: Re: pthread_create() slow for many threads; also time to revisit 64b context switch optimization?
Date: Friday, August 15, 2008 - 10:13 am

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Jamie Lokier wrote:

I agree.  Except for the comment.



Actually, I would define the flag as "do whatever is best assuming the
allocation is used for stacks".

For instance, minimally the /proc/*/maps output could show "[user
stack]" or something like this.  For security, perhaps, setting of
PROC_EXEC can be prevented.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org

iEYEARECAAYFAkiluUMACgkQ2ijCOnn/RHSb5gCfb5VhiLA/wbamoAVqfxR32k4N
tSIAoK/KAmwcVd+RjkPnb9RSuAeL/KLV
=2ynl
-----END PGP SIGNATURE-----
--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
Messages in current thread:
Re: pthread_create() slow for many threads; also time to r ..., Pardo, (Tue Aug 12, 5:45 pm)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Wed Aug 13, 3:44 am)
Re: pthread_create() slow for many threads; also time to r ..., Arjan van de Ven, (Wed Aug 13, 6:35 am)
Re: pthread_create() slow for many threads; also time to r ..., Ulrich Drepper, (Wed Aug 13, 7:21 am)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Wed Aug 13, 7:25 am)
Re: pthread_create() slow for many threads; also time to r ..., Ulrich Drepper, (Wed Aug 13, 7:36 am)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Wed Aug 13, 8:10 am)
Re: pthread_create() slow for many threads; also time to r ..., Ulrich Drepper, (Wed Aug 13, 8:21 am)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Wed Aug 13, 8:40 am)
Re: pthread_create() slow for many threads; also time to r ..., Ulrich Drepper, (Wed Aug 13, 8:55 am)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Wed Aug 13, 9:02 am)
Re: pthread_create() slow for many threads; also time to r ..., H. Peter Anvin, (Wed Aug 13, 9:05 am)
Re: pthread_create() slow for many threads; also time to r ..., Linus Torvalds, (Wed Aug 13, 10:09 am)
Re: pthread_create() slow for many threads; also time to r ..., Ulrich Drepper, (Wed Aug 13, 11:04 am)
Re: pthread_create() slow for many threads; also time to r ..., Arjan van de Ven, (Wed Aug 13, 11:16 am)
Re: pthread_create() slow for many threads; also time to r ..., Ulrich Drepper, (Wed Aug 13, 11:22 am)
Re: pthread_create() slow for many threads; also time to r ..., Andi Kleen, (Wed Aug 13, 1:42 pm)
Re: pthread_create() slow for many threads; also time to r ..., Andrew Morton, (Wed Aug 13, 1:56 pm)
Re: pthread_create() slow for many threads; also time to r ..., Andi Kleen, (Wed Aug 13, 2:46 pm)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Fri Aug 15, 5:43 am)
Re: pthread_create() slow for many threads; also time to r ..., Andi Kleen, (Fri Aug 15, 6:33 am)
Re: pthread_create() slow for many threads; also time to r ..., Jamie Lokier, (Fri Aug 15, 8:54 am)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Fri Aug 15, 9:03 am)
Re: pthread_create() slow for many threads; also time to r ..., Ulrich Drepper, (Fri Aug 15, 10:13 am)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Fri Aug 15, 10:19 am)
Re: pthread_create() slow for many threads; also time to r ..., Ulrich Drepper, (Fri Aug 15, 10:23 am)
Re: pthread_create() slow for many threads; also time to r ..., Ingo Molnar, (Fri Aug 15, 12:00 pm)