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Violators will be prosecuted; Fri, 24 Feb 2017 00:56:47 +1000 Received: from d23relay07.au.ibm.com (d23relay07.au.ibm.com [9.190.26.37]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id 79E0B2CE8056; Fri, 24 Feb 2017 01:56:46 +1100 (EST) Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay07.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v1NEuclN41091146; Fri, 24 Feb 2017 01:56:46 +1100 Received: from d23av04.au.ibm.com (localhost [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v1NEuEMl027647; Fri, 24 Feb 2017 01:56:14 +1100 Received: from localhost.in.ibm.com ([9.124.35.101]) by d23av04.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v1NEu19A027181; Fri, 24 Feb 2017 01:56:12 +1100 From: Nitesh Konkar To: libvir-list@redhat.com Date: Thu, 23 Feb 2017 20:25:34 +0530 In-Reply-To: <1487861739-24929-1-git-send-email-niteshkonkar.libvirt@gmail.com> References: <1487861739-24929-1-git-send-email-niteshkonkar.libvirt@gmail.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17022314-0052-0000-0000-0000021A2B51 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17022314-0053-0000-0000-000007D58ED1 Message-Id: <1487861739-24929-6-git-send-email-niteshkonkar.libvirt@gmail.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-23_11:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=15 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1702230140 X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 200 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 23 Feb 2017 14:56:55 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 23 Feb 2017 14:56:55 +0000 (UTC) for IP:'148.163.158.5' DOMAIN:'mx0b-001b2d01.pphosted.com' HELO:'mx0a-001b2d01.pphosted.com' FROM:'niteshkonkar.libvirt@gmail.com' RCPT:'' X-RedHat-Spam-Score: 1.06 * (BAYES_50, DKIM_ADSP_CUSTOM_MED, FREEMAIL_FROM, NML_ADSP_CUSTOM_MED, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_SOFTFAIL) 148.163.158.5 mx0b-001b2d01.pphosted.com 148.163.158.5 mx0b-001b2d01.pphosted.com X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Scanned-By: MIMEDefang 2.78 on 10.5.110.38 X-loop: libvir-list@redhat.com Cc: Nitesh Konkar , Nitesh Konkar Subject: [libvirt] [PATCH v2 05/10] perf: add cpu_migrations software perf event support X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" This patch adds support and documentation for the cpu_migrations perf event. Signed-off-by: Nitesh Konkar --- docs/formatdomain.html.in | 8 ++++++++ docs/schemas/domaincommon.rng | 1 + include/libvirt/libvirt-domain.h | 9 +++++++++ src/libvirt-domain.c | 4 ++++ src/qemu/qemu_driver.c | 1 + src/util/virperf.c | 5 ++++- src/util/virperf.h | 1 + tests/genericxml2xmlindata/generic-perf.xml | 1 + tools/virsh.pod | 3 +++ 9 files changed, 32 insertions(+), 1 deletion(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index bff699f..49f1e5e 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1940,6 +1940,7 @@ <event name=3D'task_clock' enabled=3D'no'/> <event name=3D'page_faults' enabled=3D'no'/> <event name=3D'context_switches' enabled=3D'no'/> + <event name=3D'cpu_migrations' enabled=3D'no'/> </perf> ... @@ -2045,6 +2046,13 @@ the platform perf.context_switches + + cpu_migrations + the count of cpu migrations, that is, where the process + moved from one logical processor to another, by + applications running on the platform + perf.cpu_migrations + =20

Devices

diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 1a4b6cb..a14b18a 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -437,6 +437,7 @@ task_clock page_faults context_switches + cpu_migrations diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-dom= ain.h index f7e4cd2..7e24f50 100644 --- a/include/libvirt/libvirt-domain.h +++ b/include/libvirt/libvirt-domain.h @@ -2230,6 +2230,15 @@ void virDomainStatsRecordListFree(virDomainStatsReco= rdPtr *stats); */ # define VIR_PERF_PARAM_CONTEXT_SWITCHES "context_switches" =20 +/** + * VIR_PERF_PARAM_CPU_MIGRATIONS: + * + * Macro for typed parameter name that represents cpu_migrations + * perf event which can be used to measure the count of cpu + * migrations by applications running on the platform. It corresponds + * to the "perf.cpu_migrations" field in the *Stats APIs. + */ +# define VIR_PERF_PARAM_CPU_MIGRATIONS "cpu_migrations" =20 int virDomainGetPerfEvents(virDomainPtr dom, virTypedParameterPtr *params, diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c index 6b29d14..27be5cd 100644 --- a/src/libvirt-domain.c +++ b/src/libvirt-domain.c @@ -11259,6 +11259,10 @@ virConnectGetDomainCapabilities(virConnectPtr conn, * "perf.context_switches" - The count of context switches as unsigned= long * long. It is produced by the context_switc= hes * perf event. + * "perf.cpu_migrations" - The count of cpu migrations, from one logic= al + * processor to another, as unsigned long + * long. It is produced by the cpu_migrations + * perf event. * * Note that entire stats groups or individual stat fields may be missing = from * the output in case they are not supported by the given hypervisor, are = not diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 8d6df1a..640d06b 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -9573,6 +9573,7 @@ qemuDomainSetPerfEvents(virDomainPtr dom, VIR_PERF_PARAM_TASK_CLOCK, VIR_TYPED_PARAM_= BOOLEAN, VIR_PERF_PARAM_PAGE_FAULTS, VIR_TYPED_PARAM= _BOOLEAN, VIR_PERF_PARAM_CONTEXT_SWITCHES, VIR_TYPED_= PARAM_BOOLEAN, + VIR_PERF_PARAM_CPU_MIGRATIONS, VIR_TYPED_PA= RAM_BOOLEAN, NULL) < 0) return -1; =20 diff --git a/src/util/virperf.c b/src/util/virperf.c index ba81e08..0127c82 100644 --- a/src/util/virperf.c +++ b/src/util/virperf.c @@ -45,7 +45,7 @@ VIR_ENUM_IMPL(virPerfEvent, VIR_PERF_EVENT_LAST, "bus_cycles", "stalled_cycles_frontend", "stalled_cycles_backend", "ref_cpu_cycles", "cpu_clock", "task_clock", "page_faults", - "context_switches"); + "context_switches", "cpu_migrations"); =20 struct virPerfEvent { int type; @@ -126,6 +126,9 @@ static struct virPerfEventAttr attrs[] =3D { {.type =3D VIR_PERF_EVENT_CONTEXT_SWITCHES, .attrType =3D PERF_TYPE_SOFTWARE, .attrConfig =3D PERF_COUNT_SW_CONTEXT_SWITCHES}, + {.type =3D VIR_PERF_EVENT_CPU_MIGRATIONS, + .attrType =3D PERF_TYPE_SOFTWARE, + .attrConfig =3D PERF_COUNT_SW_CPU_MIGRATIONS}, }; typedef struct virPerfEventAttr *virPerfEventAttrPtr; =20 diff --git a/src/util/virperf.h b/src/util/virperf.h index 2adc549..90ae007 100644 --- a/src/util/virperf.h +++ b/src/util/virperf.h @@ -51,6 +51,7 @@ typedef enum { VIR_PERF_EVENT_TASK_CLOCK, /* Count of task clock time*/ VIR_PERF_EVENT_PAGE_FAULTS, /* Count of total page faults */ VIR_PERF_EVENT_CONTEXT_SWITCHES, /* Count of context switches */ + VIR_PERF_EVENT_CPU_MIGRATIONS, /* Count of cpu migrations */ =20 VIR_PERF_EVENT_LAST } virPerfEventType; diff --git a/tests/genericxml2xmlindata/generic-perf.xml b/tests/genericxml= 2xmlindata/generic-perf.xml index 29a2273..f856318 100644 --- a/tests/genericxml2xmlindata/generic-perf.xml +++ b/tests/genericxml2xmlindata/generic-perf.xml @@ -30,6 +30,7 @@ + diff --git a/tools/virsh.pod b/tools/virsh.pod index eb7c255..65532b9 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -968,6 +968,7 @@ I<--perf> returns the statistics of all enabled perf ev= ents: "perf.task_clock" - the count of task clock time "perf.page_faults" - the count of page faults "perf.context_switches" - the count of context switches. + "perf.cpu_migrations" - the count of cpu migrations =20 See the B command for more details about each event. =20 @@ -2345,6 +2346,8 @@ B applications running on the platform context_switches - Provides the count of context switches by applications running on the platform + cpu_migrations - Provides the count cpu migrations by + applications running on the platform =20 B: The statistics can be retrieved using the B command usi= ng the I<--perf> flag. --=20 1.9.3 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list