From: Albert Cahalan <albert@users.sf.net>
To: linux-kernel mailing list <linux-kernel@vger.kernel.org>
Cc: mingo@elte.hu, arjanv@redhat.com
Subject: Re: 4k stacks in 2.6
Date: 26 May 2004 11:17:50 -0400 [thread overview]
Message-ID: <1085584670.955.1034.camel@cube> (raw)
Ingo Molnar writes:
> do you realize that the 4K stacks feature also adds
> a separate softirq and a separate hardirq stack?
> So the maximum footprint is 4K+4K+4K, with a clear
> and sane limit for each type of context, while the
> 2.4 kernel has 6.5K for all 3 contexts combined.
> (Also, in 2.4 irq contexts pretty much assumed that
> there's 2K of stack for them - leaving a de-facto 4K
> stack for the process and softirq contexts.) So in fact
> there is more space in 2.6 for all, and i dont really
> understand your fears.
Is that 4K per IRQ (total 64K to 1024K) or 4K total?
If it's total, then it's cheap to go with 32K.
The same goes for softirqs: 4K total, or per softirq?
next reply other threads:[~2004-05-26 17:40 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-26 15:17 Albert Cahalan [this message]
[not found] <1ZQpn-1Rx-1@gated-at.bofh.it>
[not found] ` <1ZQz8-1Yh-15@gated-at.bofh.it>
[not found] ` <1ZRFf-2Vt-3@gated-at.bofh.it>
[not found] ` <203Zu-4aT-15@gated-at.bofh.it>
2004-05-26 13:57 ` 4k stacks in 2.6 Andi Kleen
2004-05-26 18:17 ` hch
2004-05-26 18:24 ` Andi Kleen
2004-05-26 20:39 ` Zwane Mwaikambo
[not found] ` <206b3-5WN-33@gated-at.bofh.it>
[not found] ` <20baw-1Lz-15@gated-at.bofh.it>
2004-05-26 19:32 ` Andi Kleen
2004-05-27 11:27 ` Jörn Engel
2004-05-27 13:49 ` Andrea Arcangeli
2004-05-27 14:15 ` Jörn Engel
2004-05-27 14:49 ` Andrea Arcangeli
2004-05-27 14:59 ` Jörn Engel
2004-05-27 15:08 ` Keith Owens
2004-05-27 15:21 ` Jörn Engel
2004-05-27 15:34 ` Arjan van de Ven
2004-05-27 15:46 ` Jörn Engel
2004-06-01 5:25 ` Jörn Engel
-- strict thread matches above, loose matches on Subject: below --
2004-05-25 19:50 4g/4g for 2.6.6 Rik van Riel
2004-05-25 20:10 ` Rik van Riel
2004-05-25 21:15 ` Andrea Arcangeli
2004-05-26 10:33 ` 4k stacks in 2.6 Ingo Molnar
2004-05-26 12:50 ` Jörn Engel
2004-05-26 12:53 ` Arjan van de Ven
2004-05-26 13:00 ` Jörn Engel
2004-05-26 13:05 ` Arjan van de Ven
2004-05-26 16:41 ` Jörn Engel
2004-05-27 12:45 ` Ingo Molnar
2004-05-27 13:59 ` Andrea Arcangeli
2004-05-27 14:03 ` Arjan van de Ven
2004-05-27 14:42 ` Andrea Arcangeli
2004-06-02 19:40 ` Bill Davidsen
2004-05-27 14:18 ` Brian Gerst
2004-05-27 14:50 ` Andrea Arcangeli
2004-05-27 14:55 ` Linus Torvalds
2004-05-27 15:39 ` Andrea Arcangeli
2004-05-27 18:31 ` Guy Sotomayor
2004-05-27 19:26 ` Brian Gerst
2004-06-07 18:14 ` Timothy Miller
2004-06-08 6:26 ` Arjan van de Ven
2004-06-08 8:45 ` Jörn Engel
2004-05-26 18:12 ` David S. Miller
2004-05-26 19:02 ` Matt Mackall
2004-05-26 19:25 ` Dave Jones
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