From owner-freebsd-toolchain@FreeBSD.ORG  Wed Jan  9 15:52:22 2013
Return-Path: <owner-freebsd-toolchain@FreeBSD.ORG>
Delivered-To: toolchain@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by hub.freebsd.org (Postfix) with ESMTP id 70EB36EA;
 Wed,  9 Jan 2013 15:52:22 +0000 (UTC) (envelope-from bright@mu.org)
Received: from elvis.mu.org (elvis.mu.org [192.203.228.196])
 by mx1.freebsd.org (Postfix) with ESMTP id 5F28F9CF;
 Wed,  9 Jan 2013 15:52:22 +0000 (UTC)
Received: from Alfreds-MacBook-Pro-9.local (unknown [207.238.187.242])
 by elvis.mu.org (Postfix) with ESMTPSA id C78F01A3DBF;
 Wed,  9 Jan 2013 07:52:20 -0800 (PST)
Message-ID: <50ED9232.8020606@mu.org>
Date: Wed, 09 Jan 2013 10:52:18 -0500
From: Alfred Perlstein <bright@mu.org>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7;
 rv:17.0) Gecko/17.0 Thunderbird/17.0
MIME-Version: 1.0
To: Konstantin Belousov <kostikbel@gmail.com>
Subject: Re: Fast sigblock (AKA rtld speedup)
References: <20130107182235.GA65279@kib.kiev.ua>
 <50EBAA1F.9070303@freebsd.org> <20130108145631.GD82219@kib.kiev.ua>
 <50EC34FE.4070804@mu.org> <20130109073841.GH2561@kib.kiev.ua>
In-Reply-To: <20130109073841.GH2561@kib.kiev.ua>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: arch@freebsd.org, toolchain@freebsd.org
X-BeenThere: freebsd-toolchain@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Maintenance of FreeBSD's integrated toolchain
 <freebsd-toolchain.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-toolchain>, 
 <mailto:freebsd-toolchain-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-toolchain>
List-Post: <mailto:freebsd-toolchain@freebsd.org>
List-Help: <mailto:freebsd-toolchain-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-toolchain>, 
 <mailto:freebsd-toolchain-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 09 Jan 2013 15:52:22 -0000

On 1/9/13 2:38 AM, Konstantin Belousov wrote:
> On Tue, Jan 08, 2013 at 10:02:22AM -0500, Alfred Perlstein wrote:
>> I think it would be great if it works, I just haven't had time to fully
>> understand your more recent patch.  If you feel it's safe and maybe do a
>> few test programs to see what happens, that would be best.
> I revived the test programs I used during the development of the patch, see
> http://people.freebsd.org/~kib/misc/fast_sigblock.c
> http://people.freebsd.org/~kib/misc/fast_sigblock2.c
>
> Also, I adapted the code to the specific case you asked about, in
> http://people.freebsd.org/~kib/misc/fast_sigblock3.c
> When run from the shell, it reports 'Killed'.
This looks very good, thank you for addressing my concerns.

I think you should go forward with it then.

-Alfred