// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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syntax = "proto2";
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package quipper;
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// Stores output generated by the "perf stat" command.
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//
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// See https://perf.wiki.kernel.org/index.php/Tutorial#Counting_with_perf_stat
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// for more details.
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// Next tag: 3
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message PerfStatProto {
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// All lines printed by "perf stat".
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repeated PerfStatLine line = 1;
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// The command line used to run "perf stat".
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optional string command_line = 2;
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// Represents one line of "perf stat" output.
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// Next tag: 4
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message PerfStatLine {
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// Time since the start of the "perf stat" command, in milliseconds.
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//
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// When running "perf stat" and printing the counters at the end, this is
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// the total time taken by the run.
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//
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// Alternatively, "perf stat" can print its stats at regular intervals until
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// the end of the run. For example, if "perf stat" runs for one second and
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// prints at 200-ms intervals, it will print counter values for each event
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// a total of five times. According to "perf stat" usage instructions, the
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// printing interval should be no less than 100 ms.
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optional uint64 time_ms = 1;
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// Current count value of the event being counted. May be different from the
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// nominal counter value reported by "perf stat", depending on the event.
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// For example, memory access counters are in units of 64 bytes. A counter
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// value of 1024 would represent 65536 bytes, and we would set this field to
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// 65536.
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optional uint64 count = 2;
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// Name of event whose counter is listed on this line.
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// This string should also appear as part of |PerfStatProto::command_line|.
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// "perf stat" will preserve the event name exactly as it is passed in via
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// the command line.
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optional string event_name = 3;
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}
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}
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