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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "perf/jsperf.h"
namespace JS {
PerfMeasurement::PerfMeasurement(PerfMeasurement::EventMask)
: impl(0),
eventsMeasured(EventMask(0)),
cpu_cycles(-1),
instructions(-1),
cache_references(-1),
cache_misses(-1),
branch_instructions(-1),
branch_misses(-1),
bus_cycles(-1),
page_faults(-1),
major_page_faults(-1),
context_switches(-1),
cpu_migrations(-1)
{
}
PerfMeasurement::~PerfMeasurement()
{
}
void
PerfMeasurement::start()
{
}
void
PerfMeasurement::stop()
{
}
void
PerfMeasurement::reset()
{
cpu_cycles = -1;
instructions = -1;
cache_references = -1;
cache_misses = -1;
branch_instructions = -1;
branch_misses = -1;
bus_cycles = -1;
page_faults = -1;
major_page_faults = -1;
context_switches = -1;
cpu_migrations = -1;
}
bool
PerfMeasurement::canMeasureSomething()
{
return false;
}
} // namespace JS
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