From patchwork Sun Nov 22 19:13:34 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhihong Wang X-Patchwork-Id: 9038 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 437248E79; Mon, 23 Nov 2015 03:16:13 +0100 (CET) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id E08718D38 for ; Mon, 23 Nov 2015 03:16:10 +0100 (CET) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP; 22 Nov 2015 18:16:10 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,334,1444719600"; d="scan'208";a="826784494" Received: from unknown (HELO dpdk5.sh.intel.com) ([10.239.129.244]) by orsmga001.jf.intel.com with ESMTP; 22 Nov 2015 18:16:09 -0800 From: Zhihong Wang To: dev@dpdk.org Date: Sun, 22 Nov 2015 14:13:34 -0500 Message-Id: <1448219615-63746-2-git-send-email-zhihong.wang@intel.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1448219615-63746-1-git-send-email-zhihong.wang@intel.com> References: <1448219615-63746-1-git-send-email-zhihong.wang@intel.com> Subject: [dpdk-dev] [PATCH 1/2] lib/librte_eal: Reduce timer initialization time X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Changing from 1/2 second to 1/10 doesn't compromise the precision, and a 4/10 second is worth saving. Signed-off-by: Zhihong Wang --- lib/librte_eal/linuxapp/eal/eal_timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/librte_eal/linuxapp/eal/eal_timer.c b/lib/librte_eal/linuxapp/eal/eal_timer.c index e0642de..b40afa0 100644 --- a/lib/librte_eal/linuxapp/eal/eal_timer.c +++ b/lib/librte_eal/linuxapp/eal/eal_timer.c @@ -271,7 +271,7 @@ get_tsc_freq(void) #ifdef CLOCK_MONOTONIC_RAW #define NS_PER_SEC 1E9 - struct timespec sleeptime = {.tv_nsec = 5E8 }; /* 1/2 second */ + struct timespec sleeptime = {.tv_nsec = NS_PER_SEC / 10 }; /* 1/10 second */ struct timespec t_start, t_end; uint64_t tsc_hz;