From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753827Ab1LUAvZ (ORCPT ); Tue, 20 Dec 2011 19:51:25 -0500 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:35515 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753751Ab1LUAvC (ORCPT ); Tue, 20 Dec 2011 19:51:02 -0500 Message-ID: <4EF12D58.4000105@fb.com> Date: Tue, 20 Dec 2011 16:50:32 -0800 From: Arun Sharma User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: Andy Lutomirski CC: , Kumar Sundararajan , john stultz , Peter Zijlstra , Ingo Molnar , Thomas Gleixner Subject: Re: [RFC 0/2] ABI for clock_gettime_ns References: In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.18.252] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.5.7110,1.0.211,0.0.0000 definitions=2011-12-20_08:2011-12-20,2011-12-20,1970-01-01 signatures=0 X-Proofpoint-Spam-Reason: safe Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/12/11 5:26 PM, Andy Lutomirski wrote: > On x86-64, clock_gettime is so fast that the overhead converting to and > from nanoseconds is non-negligible. clock_gettime_ns is a different > interface that is potentially faster. If people like the ABI, I'll > implement an optimized version. Didn't see any major objections to this proposal. Andy: will you be posting an optimized version? -Arun