From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f179.google.com (mail-wi0-f179.google.com [209.85.212.179]) by dpdk.org (Postfix) with ESMTP id 17D23C12C for ; Wed, 21 Oct 2015 17:01:18 +0200 (CEST) Received: by wijp11 with SMTP id p11so99430281wij.0 for ; Wed, 21 Oct 2015 08:01:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:organization :user-agent:in-reply-to:references:mime-version :content-transfer-encoding:content-type; bh=WW2HY1bSDG0fGxnlVtS9VRWukhGCbqQASySEMGSS4+Y=; b=FixF8+BZ+3TNPltrSoujJnptRXYCmgqtG6f9dQ5IhgKdqxSeLj3Q+w+huqpZXy6O5A tgEOvw8BE1vQe8220HkfOD4+JiZf30q6YZFAItZzI4aenYla6dvMDh+DuYuXVgkrTUZl 3TqchvICFvsbszfFjYkmfmBF+4TDm7uiR3SIaTsQzVDmLilLTdoUs4CyqYHetHnZvKIu 2/+Sx1FCTt4z0oiEZxikBMX0Ll9H6NQzuUiwXNofM4tlMnQMio2Zk27MSVnxGYdnJ/iX lsPVJzZhFeJFoqNSj2jqV0jvtgOuBgu066B6KdxUsQhMX/DOihNomuUir36BEOwOERFA 5b1g== X-Gm-Message-State: ALoCoQkQFF0SPMGDgW17rMlnoGi65PjF2sQHhLr7mgbel8ACuy59KDkQoN0P0f7AV32lV2mH/Yuw X-Received: by 10.180.10.197 with SMTP id k5mr33013374wib.22.1445439676407; Wed, 21 Oct 2015 08:01:16 -0700 (PDT) Received: from xps13.localnet (guy78-3-82-239-227-177.fbx.proxad.net. [82.239.227.177]) by smtp.gmail.com with ESMTPSA id ds10sm24047313wib.24.2015.10.21.08.01.15 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 21 Oct 2015 08:01:15 -0700 (PDT) From: Thomas Monjalon To: Jay Rolette Date: Wed, 21 Oct 2015 17:00:10 +0200 Message-ID: <3044859.K2I5XOdN4t@xps13> Organization: 6WIND User-Agent: KMail/4.14.10 (Linux/4.1.6-1-ARCH; KDE/4.14.11; x86_64; ; ) In-Reply-To: References: <1433472396-18852-1-git-send-email-wolkayang@gmail.com> <20151013173320.46e07232@xeon-e3> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Cc: dev@dpdk.org Subject: Re: [dpdk-dev] [PATCH] rte_alarm: modify it to make it not to be affected by discontinuous jumps in the system 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: , X-List-Received-Date: Wed, 21 Oct 2015 15:01:18 -0000 2015-10-14 07:09, Jay Rolette: > Back when this was first submitted in June, I mentioned that > CLOCK_MONOTONIC_RAW was ~10x slower than CLOCK_MONOTONIC: > > http://dpdk.org/ml/archives/dev/2015-June/018687.html > > It's not completely free from NTP frequency adjustments, but it won't have > any discontinuities. > > That's what we've been using in our tree since then... This patch will be applied with CLOCK_MONOTONIC_RAW. Please send a patch to change it if relevant.