From: Roland McGrath <roland@redhat.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Ulrich Drepper <drepper@redhat.com>,
Glibc hackers <libc-hacker@sources.redhat.com>
Subject: Re: [PATCH] sparc* bits/atomic.h
Date: Mon, 31 Mar 2003 07:18:00 -0000 [thread overview]
Message-ID: <200303302359.h2UNxln00873@magilla.sf.frob.com> (raw)
In-Reply-To: Jakub Jelinek's message of Sunday, 30 March 2003 18:47:00 -0500 <20030330184700.J13397@devserv.devel.redhat.com>
> On Sun, Mar 30, 2003 at 03:40:01PM -0800, Roland McGrath wrote:
> > > sparc32 (not v9) lacks compare and swap, so it is implemented using
> > > test-and-set and a global lock. IMHO better than no locking at all,
> > > performance will suck as usually on those aging boxes.
> >
> > Are there any actual MP boxes using those chips that Linux runs on?
>
> Yes, there are.
Oh well, tough noogies for them.
next parent reply other threads:[~2003-03-30 23:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030330184700.J13397@devserv.devel.redhat.com>
2003-03-31 7:18 ` Roland McGrath [this message]
[not found] <20030330224405.GA16629@sunsite.ms.mff.cuni.cz>
2003-03-30 23:59 ` Roland McGrath
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