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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/metrics/metricmanager.h>
#include <vespa/metrics/metrics.h>
#include <vespa/metrics/summetric.hpp>
#include <vespa/vespalib/util/time.h>
#include <vespa/vespalib/util/size_literals.h>
#include <thread>
#include <vespa/vespalib/gtest/gtest.h>
#include <vespa/log/log.h>
LOG_SETUP(".metrics.test.stress");
namespace metrics {
namespace {
struct InnerMetricSet : public MetricSet {
LongCountMetric _count;
LongAverageMetric _value1;
LongAverageMetric _value2;
SumMetric<LongAverageMetric> _valueSum;
InnerMetricSet(const char* name, MetricSet* owner = 0);
~InnerMetricSet();
MetricSet* clone(std::vector<Metric::UP> &ownerList, CopyType copyType,
MetricSet* owner, bool includeUnused) const override;
};
InnerMetricSet::InnerMetricSet(const char* name, MetricSet* owner)
: MetricSet(name, {}, "", owner),
_count("count", {}, "", this),
_value1("value1", {}, "", this),
_value2("value2", {}, "", this),
_valueSum("valuesum", {}, "", this)
{
_valueSum.addMetricToSum(_value1);
_valueSum.addMetricToSum(_value2);
}
InnerMetricSet::~InnerMetricSet() = default;
MetricSet*
InnerMetricSet::clone(std::vector<Metric::UP> &ownerList, CopyType copyType,
MetricSet* owner, bool includeUnused) const
{
if (copyType != CLONE) {
return MetricSet::clone(ownerList, copyType, owner, includeUnused);
}
InnerMetricSet * myset = new InnerMetricSet(getName().c_str(), owner);
myset->assignValues(*this);
return myset;
}
struct OuterMetricSet : public MetricSet {
InnerMetricSet _inner1;
InnerMetricSet _inner2;
SumMetric<InnerMetricSet> _innerSum;
InnerMetricSet _tmp;
OuterMetricSet(MetricSet* owner = 0);
~OuterMetricSet();
};
OuterMetricSet::OuterMetricSet(MetricSet* owner)
: MetricSet("outer", {}, "", owner),
_inner1("inner1", this),
_inner2("inner2", this),
_innerSum("innersum", {}, "", this),
_tmp("innertmp", 0)
{
_innerSum.addMetricToSum(_inner1);
_innerSum.addMetricToSum(_inner2);
}
OuterMetricSet::~OuterMetricSet() = default;
struct Hammer {
using UP = std::unique_ptr<Hammer>;
OuterMetricSet& _metrics;
std::atomic<bool> _stop_requested;
std::thread _thread;
Hammer(OuterMetricSet& metrics)
: _metrics(metrics),
_stop_requested(false),
_thread()
{
_thread = std::thread([this](){run();});
}
~Hammer() {
_stop_requested = true;
_thread.join();
//std::cerr << "Loadgiver thread joined\n";
}
void run() {
uint64_t i = 0;
while (!_stop_requested.load(std::memory_order_relaxed)) {
++i;
setMetrics(i, _metrics._inner1);
setMetrics(i + 3, _metrics._inner2);
}
}
void setMetrics(uint64_t val, InnerMetricSet& set) {
set._count.inc(val);
set._value1.addValue(val);
set._value2.addValue(val + 10);
}
};
}
TEST(StressTest, test_stress)
{
OuterMetricSet metrics;
LOG(info, "Starting load givers");
std::vector<Hammer::UP> hammers;
for (uint32_t i=0; i<10; ++i) {
hammers.push_back(std::make_unique<Hammer>(metrics));
}
LOG(info, "Waiting to let loadgivers hammer a while");
std::this_thread::sleep_for(5s);
LOG(info, "Removing loadgivers");
hammers.clear();
LOG(info, "Printing end state");
std::ostringstream ost;
metrics.print(ost, true, "", 5);
// std::cerr << ost.str() << "\n";
}
}
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