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Date: Fri, 22 May 2020 11:31:41 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: kajoljain <kjain@...ux.ibm.com> Cc: Ian Rogers <irogers@...gle.com>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Mark Rutland <mark.rutland@....com>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>, Song Liu <songliubraving@...com>, Andrii Nakryiko <andriin@...com>, Andi Kleen <ak@...ux.intel.com>, John Garry <john.garry@...wei.com>, Jin Yao <yao.jin@...ux.intel.com>, Kan Liang <kan.liang@...ux.intel.com>, Cong Wang <xiyou.wangcong@...il.com>, Kim Phillips <kim.phillips@....com>, Paul Clarke <pc@...ibm.com>, Srikar Dronamraju <srikar@...ux.vnet.ibm.com>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, bpf@...r.kernel.org, linux-perf-users@...r.kernel.org, Vince Weaver <vincent.weaver@...ne.edu>, Stephane Eranian <eranian@...gle.com> Subject: Re: [PATCH v2 0/7] Share events between metrics Em Fri, May 22, 2020 at 02:55:46PM +0530, kajoljain escreveu: > On 5/20/20 11:50 PM, Ian Rogers wrote: > > Metric groups contain metrics. Metrics create groups of events to > > ideally be scheduled together. Often metrics refer to the same events, > > for example, a cache hit and cache miss rate. Using separate event > > groups means these metrics are multiplexed at different times and the > > counts don't sum to 100%. More multiplexing also decreases the > > accuracy of the measurement. <SNIP> > > Ian Rogers (7): > > perf metricgroup: Always place duration_time last > > perf metricgroup: Use early return in add_metric > > perf metricgroup: Delay events string creation > > perf metricgroup: Order event groups by size > > perf metricgroup: Remove duped metric group events > > perf metricgroup: Add options to not group or merge > > perf metricgroup: Remove unnecessary ',' from events > Reviewd-By: Kajol Jain <kjain@...ux.ibm.com> > Tested-By: Kajol Jain <kjain@...ux.ibm.com> ( Tested it to see behavior with some metric groups in both x86 and Power machine) Thanks, added to the patches, - Arnaldo
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