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Date: Thu, 18 Feb 2016 18:39:21 +0100 From: Andi Kleen <andi@...stfloor.org> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: Andi Kleen <andi@...stfloor.org>, jolsa@...nel.org, linux-kernel@...r.kernel.org, eranian@...gle.com, Andi Kleen <ak@...ux.intel.com> Subject: Re: [PATCH 2/6] perf, tools, stat: Implement CSV metrics output > Where before it wasn't there: > > cat /tmp/before > 0.282628,,task-clock,282628,100.00 > 1,,context-switches,282628,100.00 > 0,,cpu-migrations,282628,100.00 > 52,,page-faults,282628,100.00 > 861213,,cycles,285354,100.00 > <not supported>,,stalled-cycles-frontend,0,100.00 > <not supported>,,stalled-cycles-backend,0,100.00 > 686082,,instructions,285354,100.00 > 137846,,branches,285354,100.00 > 7142,,branch-misses,285354,100.00 This is intentional. See the standard perf output: 521,232 instructions # 0.63 insns per cycle # 1.13 stalled cycles per insn So this line has multiple metrics. In CSV this is expressed as a mostly empty line. -Andi
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