This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: TSX lock elision for glibc v12
- From: Torvald Riegel <triegel at redhat dot com>
- To: Andi Kleen <andi at firstfloor dot org>
- Cc: Rich Felker <dalias at aerifal dot cx>, libc-alpha at sourceware dot org, "Carlos O'Donell" <carlos at redhat dot com>, Roland McGrath <roland at hack dot frob dot com>
- Date: Fri, 21 Jun 2013 16:08:38 +0200
- Subject: Re: TSX lock elision for glibc v12
- References: <1371592286-22073-1-git-send-email-andi at firstfloor dot org> <1371753271 dot 964 dot 2220 dot camel at triegel dot csb> <20130621012328 dot GA29800 at brightrain dot aerifal dot cx> <20130621012920 dot GB29800 at brightrain dot aerifal dot cx> <20130621125906 dot GJ6123 at two dot firstfloor dot org> <1371821011 dot 964 dot 4585 dot camel at triegel dot csb> <20130621140132 dot GL6123 at two dot firstfloor dot org>
On Fri, 2013-06-21 at 16:01 +0200, Andi Kleen wrote:
> > That's not what I have in mind at least. See the 2.18 discussion
> > thread.
>
> For me Rich's proposal seems far better than anything you
> proposed so far. It has: low complexity, is actually implementable
> in a day or so, is likely to satisfy elision support of
> existing binaries, as far as I understand will fully satisfy
> POSIX?
Have you actually read what I wrote in the 2.18 thread?
I think Rich and I (and Roland, kind of) had the same idea, but as far
as I understood your summary of your understanding of what Rich posted,
it's different to what he posted. Please have a look at the incomplete
patch I just sent.