From: Ingo Molnar <mingo@elte.hu>
To: Andi Kleen <ak@suse.de>
Cc: Paul Jackson <pj@sgi.com>,
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: Wed, 28 Jun 2006 11:00:58 +0200 [thread overview]
Message-ID: <20060628090058.GA15328@elte.hu> (raw)
In-Reply-To: <200606281053.15681.ak@suse.de>
* Andi Kleen <ak@suse.de> wrote:
> On Wednesday 28 June 2006 07:44, Paul Jackson wrote:
> > > but my gut feeling is that we should add a proper sys_get_cpu() syscall
> >
> > Yes - this should be for more or less all arch's.
>
> The whole point of the original implementation is to do a fast
> architecture specific call. A slow generic call isn't very useful.
it's useful in terms of userspace uniformity. It's alot easier to expose
such APIs via glibc if there's a generic implementation everywhere.
Obviously every arch is encouraged to optimize it into a vsyscall.
Ingo
next prev parent reply other threads:[~2006-06-28 9:06 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 [this message]
2006-06-29 8:47 ` Paul Jackson
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060628090058.GA15328@elte.hu \
--to=mingo@elte.hu \
--cc=76306.1226@compuserve.com \
--cc=ak@suse.de \
--cc=drepper@redhat.com \
--cc=jakub@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=pj@sgi.com \
--cc=roland@redhat.com \
--cc=torvalds@osdl.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox