From: Paul Jackson <pj@sgi.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: ak@suse.de, 76306.1226@compuserve.com,
linux-kernel@vger.kernel.org, torvalds@osdl.org,
drepper@redhat.com, roland@redhat.com, jakub@redhat.com
Subject: Re: [RFC, patch] i386: vgetcpu(), take 2
Date: Thu, 29 Jun 2006 01:47:36 -0700 [thread overview]
Message-ID: <20060629014736.7b02af7c.pj@sgi.com> (raw)
In-Reply-To: <20060628090058.GA15328@elte.hu>
Ingo wrote:
> it's useful in terms of userspace uniformity.
Yes. It's an important property of Linux that it
provides a common, portable API for all arch's,
except where the obvious semantics (not performance)
of a call are necessarily arch-specific.
Just coding up system calls for those arch's that
happen to run a particular call super-fast, even
though the call makes logical sense on all arch's,
would lead to API chaos and impede application
portability.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401
next prev parent reply other threads:[~2006-06-29 8:48 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-21 7:27 [RFC, patch] i386: vgetcpu(), take 2 Chuck Ebbert
2006-06-21 8:15 ` Ingo Molnar
2006-06-21 17:38 ` Artur Skawina
2006-06-28 5:44 ` Paul Jackson
2006-06-28 8:53 ` Andi Kleen
2006-06-28 9:00 ` Ingo Molnar
2006-06-29 8:47 ` Paul Jackson [this message]
2006-06-21 9:26 ` Andi Kleen
2006-06-21 9:35 ` Ingo Molnar
2006-06-21 21:54 ` Rohit Seth
2006-06-21 22:21 ` Andi Kleen
2006-06-21 22:59 ` Rohit Seth
2006-06-21 23:05 ` Andi Kleen
2006-06-21 23:18 ` Rohit Seth
2006-06-21 23:29 ` Andi Kleen
2006-06-22 0:55 ` Rohit Seth
2006-06-22 8:08 ` Andi Kleen
2006-06-22 21:06 ` Rohit Seth
2006-06-22 22:14 ` Andi Kleen
2006-06-22 23:10 ` Rohit Seth
2006-06-23 12:42 ` [discuss] " Andi Kleen
2006-06-24 2:06 ` Rohit Seth
2006-06-24 8:42 ` Andi Kleen
2006-06-27 1:13 ` Rohit Seth
-- strict thread matches above, loose matches on Subject: below --
2006-06-21 12:24 Chuck Ebbert
2006-06-21 17:14 ` Andi Kleen
2006-06-21 17:27 ` Linus Torvalds
2006-06-21 17:50 ` Andi Kleen
2006-06-22 12:23 Chuck Ebbert
2006-06-22 12:44 ` Andi Kleen
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