From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <bruce.richardson@intel.com> Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 739D791A9 for <dev@dpdk.org>; Mon, 5 Oct 2015 15:10:13 +0200 (CEST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP; 05 Oct 2015 06:10:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,638,1437462000"; d="scan'208";a="784746851" Received: from bricha3-mobl3.ger.corp.intel.com ([10.237.221.33]) by orsmga001.jf.intel.com with SMTP; 05 Oct 2015 06:10:10 -0700 Received: by (sSMTP sendmail emulation); Mon, 05 Oct 2015 14:10:09 +0025 Date: Mon, 5 Oct 2015 14:10:09 +0100 From: Bruce Richardson <bruce.richardson@intel.com> To: =?utf-8?B?7LWc7J217ISx?= <pnk003@naver.com> Message-ID: <20151005131008.GA22612@bricha3-MOBL3> References: <a51e66f48be0a2a7bb595085a3cbadb7@cweb29.nm.nhnsystem.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <a51e66f48be0a2a7bb595085a3cbadb7@cweb29.nm.nhnsystem.com> Organization: Intel Shannon Ltd. User-Agent: Mutt/1.5.23 (2014-03-12) Cc: dev@dpdk.org Subject: Re: [dpdk-dev] Question about specifying constant time interval when using rte_get_timer_cycles(). X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK <dev.dpdk.org> List-Unsubscribe: <http://dpdk.org/ml/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://dpdk.org/ml/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <http://dpdk.org/ml/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Mon, 05 Oct 2015 13:10:13 -0000 On Mon, Oct 05, 2015 at 07:59:27PM +0900, 최익성 wrote: > Dear DPDK experts. > > I have a question about specifying constant time interval when using rte_get_timer_cycles(); > > Would you let me know how can I specify constant time 30 seconds of DRAIN_TIME? > > I will really appreciate if let me know. > > > uint64_t now, old, DRAIN_TIME ; > > DRAIN_TIME = ? // 30 seconds. > > old = rte_get_timer_cycles(); > ... > now = rte_get_timer_cycles(); > > if ((new-old) > DRAIN_TIME ) { ... } > > > Thank you very much. > > Sincerely Yours, > > Ick-Sung Choi. > The companion function rte_get_timer_hz should be what you want I think. It will allow you to translate cycles to seconds/milliseconds. /Bruce