80c663882a
Summary: First draft. Unit tests pass. Test Plan: unit tests attached Reviewers: heyongqiang Reviewed By: heyongqiang Differential Revision: https://reviews.facebook.net/D3969
99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
/*
|
|
* Licensed to the Apache Software Foundation (ASF) under one
|
|
* or more contributor license agreements. See the NOTICE file
|
|
* distributed with this work for additional information
|
|
* regarding copyright ownership. The ASF licenses this file
|
|
* to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance
|
|
* with the License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing,
|
|
* software distributed under the License is distributed on an
|
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
* KIND, either express or implied. See the License for the
|
|
* specific language governing permissions and limitations
|
|
* under the License.
|
|
*/
|
|
#ifndef THRIFT_TEST_LOADGEN_LATENCYSCOREBOARD_H_
|
|
#define THRIFT_TEST_LOADGEN_LATENCYSCOREBOARD_H_ 1
|
|
|
|
#include "thrift/lib/cpp/test/loadgen/ScoreBoard.h"
|
|
#include "thrift/lib/cpp/test/loadgen/ScoreBoardOpVector.h"
|
|
|
|
namespace apache { namespace thrift { namespace loadgen {
|
|
|
|
/**
|
|
* A ScoreBoard that tracks number of queries per second, as well as
|
|
* information about how long each operation takes.
|
|
*
|
|
* This ScoreBoard calls gettimeofday() twice for each operation, so it does
|
|
* add a small amount of overhead. If you have extremely high performance
|
|
* requirements, you could use QpsScoreBoard to track just the QPS rate and
|
|
* eliminate the gettimeofday() calls.
|
|
*/
|
|
class LatencyScoreBoard : public ScoreBoard {
|
|
public:
|
|
class OpData {
|
|
public:
|
|
OpData();
|
|
|
|
void addDataPoint(uint64_t latencyUsecs);
|
|
|
|
void zero();
|
|
void accumulate(const OpData* other);
|
|
|
|
uint64_t getCount() const;
|
|
uint64_t getCountSince(const OpData* other) const;
|
|
double getLatencyAvg() const;
|
|
double getLatencyAvgSince(const OpData* other) const;
|
|
double getLatencyStdDev() const;
|
|
double getLatencyStdDevSince(const OpData* other) const;
|
|
|
|
uint64_t count_;
|
|
uint64_t usecSum_;
|
|
uint64_t sumOfSquares_;
|
|
};
|
|
|
|
LatencyScoreBoard(uint32_t numOpsHint)
|
|
: startTime_(0)
|
|
, opData_(numOpsHint) {}
|
|
|
|
virtual void opStarted(uint32_t opType);
|
|
virtual void opSucceeded(uint32_t opType);
|
|
virtual void opFailed(uint32_t opType);
|
|
|
|
/**
|
|
* Get the OpData for a particular operation type
|
|
*/
|
|
const OpData* getOpData(uint32_t opType);
|
|
|
|
/**
|
|
* Compute an OpData object with aggregate information over all operation
|
|
* types.
|
|
*
|
|
* @param result A pointer to the OpData object to fill in with aggregate
|
|
* information.
|
|
*/
|
|
void computeOpAggregate(OpData* result) const;
|
|
|
|
/**
|
|
* Zero out the statistics.
|
|
*/
|
|
void zero();
|
|
|
|
/**
|
|
* Add the counters from another scoreboard to this one.
|
|
*/
|
|
void accumulate(const LatencyScoreBoard* other);
|
|
|
|
private:
|
|
int64_t startTime_;
|
|
ScoreBoardOpVector<OpData> opData_;
|
|
};
|
|
|
|
}}} // apache::thrift::loadgen
|
|
|
|
#endif // THRIFT_TEST_LOADGEN_LATENCYSCOREBOARD_H_
|