From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by dpdk.org (Postfix) with ESMTP id 2C6051B7EA for ; Wed, 7 Feb 2018 08:05:15 +0100 (CET) Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w1774o7j025201 for ; Wed, 7 Feb 2018 02:05:14 -0500 Received: from e06smtp12.uk.ibm.com (e06smtp12.uk.ibm.com [195.75.94.108]) by mx0a-001b2d01.pphosted.com with ESMTP id 2fyumsaebc-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 07 Feb 2018 02:05:12 -0500 Received: from localhost by e06smtp12.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 7 Feb 2018 07:05:10 -0000 Received: from b06cxnps3074.portsmouth.uk.ibm.com (9.149.109.194) by e06smtp12.uk.ibm.com (192.168.101.142) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Wed, 7 Feb 2018 07:05:08 -0000 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w177572N38273212; Wed, 7 Feb 2018 07:05:07 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2CB5EA4055; Wed, 7 Feb 2018 06:58:33 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E9C03A4051; Wed, 7 Feb 2018 06:58:31 +0000 (GMT) Received: from ADMINIB2M8Q79C (unknown [9.186.60.73]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 7 Feb 2018 06:58:31 +0000 (GMT) From: "Chao Zhu" To: "'Thomas Monjalon'" , "'Gowrishankar'" Cc: References: <3728847.cnur1V9eyL@xps> In-Reply-To: <3728847.cnur1V9eyL@xps> Date: Wed, 7 Feb 2018 15:05:06 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 15.0 Content-Language: zh-cn Thread-Index: AQFZ4MNmibhPJyiHKDukoyQxFKjIdgGIppUVpH+878A= X-TM-AS-GCONF: 00 x-cbid: 18020707-0008-0000-0000-000004CA37FB X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18020707-0009-0000-0000-00001E5DE6DA Message-Id: <000901d39fe1$fcdfcde0$f69f69a0$@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-02-07_01:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1802070089 Subject: Re: [dpdk-dev] [PATCH] eal/ppc64: revert implement arch-specific TSC freq query X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Feb 2018 07:05:15 -0000 The previous patch has some misunderstanding of the the TSC frequency counting. I support this. > -----Original Message----- > From: Thomas Monjalon [mailto:thomas@monjalon.net] > Sent: 2018=C4=EA2=D4=C21=C8=D5 8:30 > To: Gowrishankar ; Chao Zhu > > Cc: dev@dpdk.org > Subject: Re: [dpdk-dev] [PATCH] eal/ppc64: revert implement = arch-specific TSC > freq query >=20 > 30/01/2018 09:59, Gowrishankar: > > From: Gowrishankar Muthukrishnan > > > > This reverts commit 15692396fd68932b6a81f00f12d4b0da12baa7d3 > > (eal/ppc64: implement arch-specific TSC freq query). We intended to > > derive pkt/sec estimation with cpu clock frequency. As timebase > > register serves the timer purpose, we need to stick with it for > > calculating pkt/sec, hence reverting the change. > > > > Fixes: 15692396fd (eal/ppc64: implement arch-specific TSC freq = query) >=20 > It is not clear what it is fixing. >=20 > Chao, please review.