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Date: Wed, 4 Apr 2007 00:16:09 -0700
From: "Ulrich Drepper" <drepper@gmail.com>
To: "Eric Dumazet" <dada1@cosmosbay.com>
Subject: Re: [PATCH 0/3] FUTEX : new PRIVATE futexes, SMP and NUMA improvements
Cc: "Nick Piggin" <nickpiggin@yahoo.com.au>,
       "Andrew Morton" <akpm@linux-foundation.org>,
       "Ingo Molnar" <mingo@elte.hu>, "Andi Kleen" <ak@suse.de>,
       "Ravikiran G Thirumalai" <kiran@scalex86.org>,
       "Shai Fultheim (Shai@scalex86.org)" <shai@scalex86.org>,
       "pravin b shelar" <pravin.shelar@calsoftinc.com>,
       linux-kernel@vger.kernel.org
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On 3/15/07, Eric Dumazet <dada1@cosmosbay.com> wrote:
> But fact is POSIX defined PRIVATE and SHARED, allowing clear separation, and
> optimal performance if carefuly implemented. Time has come for linux to have
> better threading performance.

Now that I've been pointed to the thread I can comment on it.

Yes, this approach makes a lot of sense.  Programs which shared syn
objects without declaring them correctly are broken and deserve to
fail.  It would be quite a lot of change in libpthread but it's
manageable.

I haven't tested the code nor will I likely do until I get a Fedora
kernel with it.  So, convince DaveJ to take it for testing.