From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28524 invoked by alias); 27 Feb 2013 15:41:58 -0000 Received: (qmail 28509 invoked by uid 22791); 27 Feb 2013 15:41:56 -0000 X-SWARE-Spam-Status: No, hits=-2.5 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from unicorn.mansr.com (HELO unicorn.mansr.com) (78.86.181.103) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 27 Feb 2013 15:41:46 +0000 Received: by unicorn.mansr.com (Postfix, from userid 51770) id 1558C15600; Wed, 27 Feb 2013 15:41:45 +0000 (GMT) From: =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= To: Richard Henderson Cc: libc-ports@sourceware.org, Joseph Myers Subject: Re: [PATCH 00/26] ARM improvements References: <1361934986-17018-1-git-send-email-rth@twiddle.net> Date: Wed, 27 Feb 2013 15:41:00 -0000 In-Reply-To: <1361934986-17018-1-git-send-email-rth@twiddle.net> (Richard Henderson's message of "Tue, 26 Feb 2013 19:16:00 -0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Mailing-List: contact libc-ports-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: libc-ports-owner@sourceware.org X-SW-Source: 2013-02/txt/msg00099.txt.bz2 Richard Henderson writes: > Patches 19-23 add improved string routines for armv6t2. I've had these > hanging around for almost 2 years without properly submitting them.=20 > Which is perhaps a bit silly, but the A8 host I was originally doing > testing on has a dreadfully low resolution clock, so it was hard to get > real numbers. Whereas the A15 has a 1ns resolution CLOCK_MONOTONIC_RAW. > I can post the benchmarks under separate cover if you like. With a suitable kernel hack, you can access the cycle counter from userspace on any ARMv7 device. This is probably more accurate and avoids the syscall overhead. --=20 M=E5ns Rullg=E5rd mans@mansr.com