output = out;
}
public void run()
{
Snapshot latency;
long oldLatency;
int epoch, total, oldTotal, keyCount, oldKeyCount;
// creating keyspace and column families
if (client.getOperation() == Stress.Operations.INSERT || client.getOperation() == Stress.Operations.COUNTER_ADD)
client.createKeySpaces();
int threadCount = client.getThreads();
Consumer[] consumers = new Consumer[threadCount];
output.println("total,interval_op_rate,interval_key_rate,latency,95th,99.9th,elapsed_time");
int itemsPerThread = client.getKeysPerThread();
int modulo = client.getNumKeys() % threadCount;
RateLimiter rateLimiter = RateLimiter.create(client.getMaxOpsPerSecond());
// creating required type of the threads for the test
for (int i = 0; i < threadCount; i++) {
if (i == threadCount - 1)
itemsPerThread += modulo; // last one is going to handle N + modulo items
consumers[i] = new Consumer(itemsPerThread, rateLimiter);
}
Producer producer = new Producer();
producer.start();
// starting worker threads
for (int i = 0; i < threadCount; i++)
consumers[i].start();
// initialization of the values
boolean terminate = false;
epoch = total = keyCount = 0;
int interval = client.getProgressInterval();
int epochIntervals = client.getProgressInterval() * 10;
long testStartTime = System.nanoTime();
StressStatistics stats = new StressStatistics(client, output);
while (!terminate)
{
if (stop)
{
producer.stopProducer();
for (Consumer consumer : consumers)
consumer.stopConsume();
break;
}
Uninterruptibles.sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
int alive = 0;
for (Thread thread : consumers)
if (thread.isAlive()) alive++;
if (alive == 0)
terminate = true;
epoch++;
if (terminate || epoch > epochIntervals)
{
epoch = 0;
oldTotal = total;
oldKeyCount = keyCount;
total = client.operations.get();
keyCount = client.keys.get();
latency = client.latency.getSnapshot();
int opDelta = total - oldTotal;
int keyDelta = keyCount - oldKeyCount;
long currentTimeInSeconds = TimeUnit.NANOSECONDS.toSeconds(System.nanoTime() - testStartTime);
output.println(String.format("%d,%d,%d,%.1f,%.1f,%.1f,%d",
total,
opDelta / interval,
keyDelta / interval,
latency.getMedian(), latency.get95thPercentile(), latency.get999thPercentile(),
currentTimeInSeconds));
if (client.outputStatistics()) {
stats.addIntervalStats(total,
opDelta / interval,