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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 4 Dec 2019 15:05:24 -0000 Received: from d06av24.portsmouth.uk.ibm.com (d06av24.portsmouth.uk.ibm.com [9.149.105.60]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xB4F5NJp62521592 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 4 Dec 2019 15:05:23 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B1B194204C; Wed, 4 Dec 2019 15:05:23 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 53C414203F; Wed, 4 Dec 2019 15:05:22 +0000 (GMT) Received: from linux.vnet.ibm.com (unknown [9.126.150.29]) by d06av24.portsmouth.uk.ibm.com (Postfix) with SMTP; Wed, 4 Dec 2019 15:05:22 +0000 (GMT) Date: Wed, 4 Dec 2019 20:35:21 +0530 From: Srikar Dronamraju To: Michael Ellerman Subject: Re: [PATCH 1/2] powerpc/vcpu: Assume dedicated processors as non-preempt References: <20191204134459.22470-1-srikar@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20191204134459.22470-1-srikar@linux.vnet.ibm.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-TM-AS-GCONF: 00 x-cbid: 19120415-0016-0000-0000-000002D10D8D X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19120415-0017-0000-0000-000033330E58 Message-Id: <20191204150521.GB4824@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-04_03:2019-12-04,2019-12-04 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 lowpriorityscore=0 phishscore=0 mlxlogscore=650 spamscore=0 impostorscore=0 mlxscore=0 adultscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912040125 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Srikar Dronamraju Cc: Juri Lelli , Parth Shah , linuxppc-dev , Waiman Long , Ihor Pasichnyk Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" * Srikar Dronamraju [2019-12-04 19:14:58]: > > > # perf stat -a -r 5 ./schbench > v5.4 v5.4 + patch > Latency percentiles (usec) Latency percentiles (usec) > 49.0000th: 47 50.0000th: 33 > 74.0000th: 64 75.0000th: 44 > 89.0000th: 76 90.0000th: 50 > 94.0000th: 83 95.0000th: 53 > *98.0000th: 103 *99.0000th: 57 > 98.5000th: 2124 99.5000th: 59 > 98.9000th: 7976 99.9000th: 83 > min=-1, max=10519 min=0, max=117 > Latency percentiles (usec) Latency percentiles (usec) > 49.0000th: 45 50.0000th: 34 > 74.0000th: 61 75.0000th: 45 > 89.0000th: 70 90.0000th: 52 > 94.0000th: 77 95.0000th: 56 > *98.0000th: 504 *99.0000th: 62 > 98.5000th: 4012 99.5000th: 64 > 98.9000th: 8168 99.9000th: 79 > min=-1, max=14500 min=0, max=123 > Latency percentiles (usec) Latency percentiles (usec) > 49.0000th: 48 50.0000th: 35 > 74.0000th: 65 75.0000th: 47 > 89.0000th: 76 90.0000th: 55 > 94.0000th: 82 95.0000th: 59 > *98.0000th: 1098 *99.0000th: 67 > 98.5000th: 3988 99.5000th: 71 > 98.9000th: 9360 99.9000th: 98 > min=-1, max=19283 min=0, max=137 > Latency percentiles (usec) Latency percentiles (usec) > 49.0000th: 46 50.0000th: 35 > 74.0000th: 63 75.0000th: 46 > 89.0000th: 73 90.0000th: 53 > 94.0000th: 78 95.0000th: 57 > *98.0000th: 113 *99.0000th: 63 > 98.5000th: 2316 99.5000th: 65 > 98.9000th: 7704 99.9000th: 83 > min=-1, max=17976 min=0, max=139 > Latency percentiles (usec) Latency percentiles (usec) > 49.0000th: 46 50.0000th: 34 > 74.0000th: 62 75.0000th: 46 > 89.0000th: 73 90.0000th: 53 > 94.0000th: 79 95.0000th: 57 > *98.0000th: 97 *99.0000th: 64 > 98.5000th: 1398 99.5000th: 70 > 98.9000th: 8136 99.9000th: 100 > min=-1, max=10008 min=0, max=142 > Just to be clear, since these are latency values, lesser number is better. -- Thanks and Regards Srikar Dronamraju