From: "Ulrich Weigand" <Ulrich.Weigand@de.ibm.com>
To: Pete Zaitcev <zaitcev@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC] 4KB stack + irq stack for x86
Date: Thu, 6 Jun 2002 21:24:32 +0200 [thread overview]
Message-ID: <OF70FD985F.A9C66B00-ONC1256BD0.0069C993@de.ibm.com> (raw)
Pete Zaitcev wrote:
>> Of course, the situation is particularly bad on s390, because every
>> function call needs at least 96 bytes on the stack (due to the register
>> save areas required by our ABI).
>
>How is this different from sparc64?
Well, I guess it's similar on sparc. I'm not sure about the size of the
save areas needed on sparc, though. In any case both sparc and s390 are
certainly much worse w.r.t. stack space usage than i386 ...
(*Really* ugly is s390x, because we need about twice as much stack on
average than on s390, but page size is still only 4K -- most other 64-bit
platforms have 8K page size ...)
Mit freundlichen Gruessen / Best Regards
Ulrich Weigand
--
Dr. Ulrich Weigand
Linux for S/390 Design & Development
IBM Deutschland Entwicklung GmbH, Schoenaicher Str. 220, 71032 Boeblingen
Phone: +49-7031/16-3727 --- Email: Ulrich.Weigand@de.ibm.com
next reply other threads:[~2002-06-06 19:24 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-06 19:24 Ulrich Weigand [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-06-06 20:55 Ulrich Weigand
2002-06-06 21:19 ` David Mosberger
2002-06-06 22:10 ` Martin J. Bligh
2002-06-07 0:59 ` William Lee Irwin III
[not found] <OF70FD985F.A9C66B00-ONC1256BD0.0069C993@de.ibm.com.suse.lists.linux.kernel>
2002-06-06 19:49 ` Andi Kleen
2002-06-06 20:27 ` David Mosberger
2002-06-07 11:28 ` Maciej W. Rozycki
[not found] <mailman.1023370621.16639.linux-kernel2news@redhat.com>
2002-06-06 17:37 ` Pete Zaitcev
2002-06-07 1:06 ` David S. Miller
2002-06-06 13:32 Ulrich Weigand
[not found] <20020604225539.F9111@redhat.com.suse.lists.linux.kernel>
[not found] ` <Pine.LNX.4.44.0206050820100.2941-100000@home.transmeta.com.suse.lists.linux.kernel>
[not found] ` <20020605144357.A4697@redhat.com.suse.lists.linux.kernel>
2002-06-05 20:40 ` Andi Kleen
2002-06-05 20:55 ` Linus Torvalds
2002-06-05 2:55 Benjamin LaHaise
2002-06-05 15:33 ` Linus Torvalds
2002-06-05 18:43 ` Benjamin LaHaise
2002-06-05 18:53 ` Linus Torvalds
2002-06-05 21:07 ` Benjamin LaHaise
2002-06-05 22:15 ` Steve Lord
2002-06-05 22:31 ` Benjamin LaHaise
2002-06-05 23:13 ` David S. Miller
2002-06-06 0:24 ` Larry McVoy
2002-06-06 1:15 ` Andi Kleen
2002-06-02 15:52 ` Pavel Machek
2002-06-09 18:50 ` Andi Kleen
2002-06-06 1:42 ` Benjamin LaHaise
2002-06-06 2:30 ` Stephen Lord
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