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easy_kfc_load.cpp
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/**
* 通过Easy KFC 接口批量测试 Eas 接口性能
* 主要指标计算公式:
* QPS: 成功的query数目 / 测试耗时
* max RT: 最大的成功的query RT
* min RT: 最小的成功的query RT
* mean RT: 成功的query RT总和 / 成功的query数目
*
* Usage: ./easy_kfc_load [<options>]
*/
#include <string>
#include <vector>
#include <iostream>
#include <fstream>
#include <time.h>
#include <sys/time.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include <sys/wait.h>
#include <math.h>
#include <algorithm>
//get ip adrress head
#include <stdio.h>
#include <sys/types.h>
#include <ifaddrs.h>
#include <netinet/in.h>
#include <string.h>
#include <arpa/inet.h>
#include "easy_kfc_handler.h"
using namespace std;
static const char *DEFAULT_GROUP = "test2"; // 缺省server组名
static const char *DEFAULT_HOSTNAME = "127.0.0.1"; // 缺省hostname
static const char *DEFAULT_PORT = "2200"; // 缺省port
static const int DEFAULT_TIMEOUT = 300; // 缺省超时毫秒数
static int DEFAULT_MSG_LEN = 1024; // 缺省最大消息长度
static bool g_verbose = false; // 是否详细输出
static unsigned g_req = 0xFFFFFFFF; // 请求次数
static unsigned g_rt_threshold = 2000; // long rt threshhold 点，2000 微秒
static int g_childNum = 0; // 实际的子进程数
static int g_exit = false; // 进程是否退出
// query统计信息
struct SQueryStatis {
time_t beforeTestTime; // 测试前计时
time_t afterTestTime; // 测试后计时
struct timeval totalResponseTime;// query的总耗时
unsigned maxTime; // 成功query最大耗时，微秒数
unsigned minTime; // 成功query最小耗时，微秒数
unsigned totalCount; // query次数
unsigned successCount; // 成功query数目
unsigned failedCount; // 失败query数目，是指通讯成功，但返回的状态码不是0
unsigned sendTimeoutCount; // 发送超时数目
unsigned recvTimeoutCount; // 接收超时数目
unsigned unknownErrorCount; // 未知错误数目
double RTStandardDeviation;
unsigned longRTCount;
uint64_t RT_50, RT_66, RT_75, RT_80, RT_90, RT_95, RT_98, RT_99;
// 初始化统计信息
SQueryStatis() :
maxTime(0), minTime(1000000), totalCount(0), successCount(0), failedCount(0),
sendTimeoutCount(0), recvTimeoutCount(0), unknownErrorCount(0), RTStandardDeviation(0), longRTCount(0),
RT_50(0), RT_66(0), RT_75(0), RT_80(0), RT_90(0), RT_95(0), RT_98(0), RT_99(0)
{
totalResponseTime.tv_usec = 0;
totalResponseTime.tv_sec = 0;
}
};
// 时间到
static void timeToStop(int sig)
{
g_exit = true;
}
// Get Local IP Address
static string getIpAddress()
{
uint64_t address[16];
easy_addr_t addr;
char buffer[64];
int i, cnt;
buffer[0] = '\0';
cnt = easy_inet_hostaddr(address, 16, 0);
memset(&addr, 0, sizeof(addr));
for(i = 0; i < cnt; i++) {
addr.u.addr = address[i];
easy_inet_addr_to_str(&addr, buffer, 64);
}
return buffer;
}
//Send Queries to Easy KFC Server. timeout is sending timeout value.
static void testQueries(easy_kfc_agent_t *ka, int timeout, SQueryStatis &statis)
{
//unsigned count = 100000;
//g_req = count;
char data1[DEFAULT_MSG_LEN];
char data2[DEFAULT_MSG_LEN];
memset(data1, 'A', DEFAULT_MSG_LEN);
data1[DEFAULT_MSG_LEN - 1] = '\0';
// 开始查询
//pid_t pid = getpid();
struct timeval beforeQueryTime, afterQueryTime, responseTime;
//int i = 0;
vector<uint64_t> mRTVector; //store all the response time;
while (!g_exit && statis.totalCount < g_req) {
statis.totalCount++;
bool isOK = false;
gettimeofday(&beforeQueryTime, NULL);
if (easy_kfc_send_message(ka, data1, DEFAULT_MSG_LEN, timeout) == EASY_OK) {
if (g_verbose) {
cout << "Send MSG: " << string(data1) << endl;
}
if (easy_kfc_recv_message(ka, data2, DEFAULT_MSG_LEN) > 0) {
if (g_verbose) {
cout << "Recv MSG: " << string(data2) << endl;
}
} else {
cout << "error when receiving msg" << endl;
statis.unknownErrorCount++;
statis.failedCount++;
continue;
}
} else {
cout << "error when sending msg" << endl;
if (ka->kfc->eio->stoped) break;
statis.unknownErrorCount++;
statis.failedCount++;
continue;
}
statis.successCount++;
isOK = true;
gettimeofday(&afterQueryTime, NULL);
timersub(&afterQueryTime, &beforeQueryTime, &responseTime);
if (isOK) {
timeradd(&(statis.totalResponseTime), &responseTime, &(statis.totalResponseTime));
mRTVector.push_back(responseTime.tv_sec * 1000000 + responseTime.tv_usec);
unsigned timeUsed = responseTime.tv_sec * 1000000 + responseTime.tv_usec;
if (statis.maxTime < timeUsed) statis.maxTime = timeUsed;
if (statis.minTime > timeUsed) statis.minTime = timeUsed;
if (timeUsed > g_rt_threshold)
statis.longRTCount++;
} // end of isOK
}//end of while
uint64_t mTotalRT = 0;
for (vector<uint64_t>::iterator iter = mRTVector.begin(); iter != mRTVector.end(); ++iter)
mTotalRT += *iter;
uint64_t averageRT = (uint64_t)(mTotalRT / (double)statis.successCount);
uint64_t totalDeviation = 0;
for (vector<uint64_t>::iterator iter = mRTVector.begin(); iter != mRTVector.end(); ++iter) {
totalDeviation += (*iter - averageRT) * (*iter - averageRT);
}
statis.RTStandardDeviation = sqrt(totalDeviation / (double)statis.successCount);
sort(mRTVector.begin(), mRTVector.end());
vector<uint64_t>::size_type v_size = mRTVector.size();
if (v_size <= 1)
return;
statis.RT_50 = mRTVector[v_size / 2 - 1];
statis.RT_66 = mRTVector[(int)(v_size * 0.66) - 1];
statis.RT_75 = mRTVector[(int)(v_size * 0.75) - 1];
statis.RT_80 = mRTVector[(int)(v_size * 0.8) - 1];
statis.RT_90 = mRTVector[(int)(v_size * 0.9) - 1];
statis.RT_95 = mRTVector[(int)(v_size * 0.95) - 1];
statis.RT_98 = mRTVector[(int)(v_size * 0.98) - 1];
statis.RT_99 = mRTVector[(int)(v_size * 0.99) - 1];
}
// 用法显示
static void usage(const char *exe)
{
cout << "Usage: " << exe << " [<options>]" << endl;
cout << "Where <options> are:" << endl;
cout << " -h <server hostname> The hostname/ip of the server, the default hostname is \"127.0.0.1\"" << endl;
cout << " -p <server port> The port of the server listen, the default port is \"2200\"" << endl;
cout << " -g <server group> The group name of the server, the default group name is \"test2\"" << endl;
cout << " -b <bytes to send> The bytes of send message size, the default is 1024" << endl;
cout << " -t <timeout> The timeout in milliseconds, the default is 300" << endl;
cout << " -c <concurrency> Number of multiple requests to make, default is 1" << endl;
cout << " -m <munites limit> Limit the running time in munites" << endl;
cout << " -n <number limit> Limit the query requests in number of every process, default is 0xFFFFFFFF " << endl;
cout << " -l <threshold limit> Threshold value of response time, RT bigger than this value will be counted as long RT. Default is 2000" << endl;
cout << " -v Show verbose detail of process" << endl;
}
// 文件名
inline static void genFileName(char f[], pid_t pid)
{
sprintf(f, "/tmp/%u.dat", pid);
}
// 输出一个进程的统计结果，以pid命名
static void writeStatis(SQueryStatis &statis, double totalTestTime, double totalResponseTime)
{
char f[80];
genFileName(f, getpid());
ofstream fOut(f);
if (fOut) {
fOut.write((const char *)&statis.totalCount, sizeof(statis.totalCount));
fOut.write((const char *)&statis.successCount, sizeof(statis.successCount));
fOut.write((const char *)&statis.failedCount, sizeof(statis.failedCount));
fOut.write((const char *)&statis.sendTimeoutCount, sizeof(statis.sendTimeoutCount));
fOut.write((const char *)&statis.recvTimeoutCount, sizeof(statis.recvTimeoutCount));
fOut.write((const char *)&statis.unknownErrorCount, sizeof(statis.unknownErrorCount));
fOut.write((const char *)&totalTestTime, sizeof(totalTestTime));
fOut.write((const char *)&totalResponseTime, sizeof(totalResponseTime));
fOut.write((const char *)&statis.maxTime, sizeof(statis.maxTime));
fOut.write((const char *)&statis.minTime, sizeof(statis.minTime));
fOut.write((const char *)&statis.longRTCount, sizeof(statis.longRTCount));
fOut.write((const char *)&statis.RTStandardDeviation, sizeof(statis.RTStandardDeviation));
fOut.write((const char *)&statis.RT_50, sizeof(statis.RT_50));
fOut.write((const char *)&statis.RT_66, sizeof(statis.RT_66));
fOut.write((const char *)&statis.RT_75, sizeof(statis.RT_75));
fOut.write((const char *)&statis.RT_80, sizeof(statis.RT_80));
fOut.write((const char *)&statis.RT_90, sizeof(statis.RT_90));
fOut.write((const char *)&statis.RT_95, sizeof(statis.RT_95));
fOut.write((const char *)&statis.RT_98, sizeof(statis.RT_98));
fOut.write((const char *)&statis.RT_99, sizeof(statis.RT_99));
} else {
cout << "** Failed to write file " << f << " **" << endl;
}
}
// 总的统计信息
static SQueryStatis g_statis; // 包括所有子进程的总的统计信息
static double g_totalTestTime = 0; // 总的测试时间
static double g_totalResponseTime = 0; // 总的query耗时
// 合并统计信息
static void mergeStatis(pid_t pid)
{
char f[80];
genFileName(f, pid);
ifstream fIn(f);
if (fIn) {
// 读入某个进程的统计数据
SQueryStatis statis;
double totalTestTime, totalResponseTime;
fIn.read((char *)&statis.totalCount, sizeof(statis.totalCount));
fIn.read((char *)&statis.successCount, sizeof(statis.successCount));
fIn.read((char *)&statis.failedCount, sizeof(statis.failedCount));
fIn.read((char *)&statis.sendTimeoutCount, sizeof(statis.sendTimeoutCount));
fIn.read((char *)&statis.recvTimeoutCount, sizeof(statis.recvTimeoutCount));
fIn.read((char *)&statis.unknownErrorCount, sizeof(statis.unknownErrorCount));
fIn.read((char *)&totalTestTime, sizeof(totalTestTime));
fIn.read((char *)&totalResponseTime, sizeof(totalResponseTime));
fIn.read((char *)&statis.maxTime, sizeof(statis.maxTime));
fIn.read((char *)&statis.minTime, sizeof(statis.minTime));
fIn.read((char *)&statis.longRTCount, sizeof(statis.longRTCount));
fIn.read((char *)&statis.RTStandardDeviation, sizeof(statis.RTStandardDeviation));
fIn.read((char *)&statis.RT_50, sizeof(statis.RT_50));
fIn.read((char *)&statis.RT_66, sizeof(statis.RT_66));
fIn.read((char *)&statis.RT_75, sizeof(statis.RT_75));
fIn.read((char *)&statis.RT_80, sizeof(statis.RT_80));
fIn.read((char *)&statis.RT_90, sizeof(statis.RT_90));
fIn.read((char *)&statis.RT_95, sizeof(statis.RT_95));
fIn.read((char *)&statis.RT_98, sizeof(statis.RT_98));
fIn.read((char *)&statis.RT_99, sizeof(statis.RT_99));
fIn.close();
remove(f);
// 合并
g_statis.totalCount += statis.totalCount;
g_statis.successCount += statis.successCount;
g_statis.failedCount += statis.failedCount;
g_statis.sendTimeoutCount += statis.sendTimeoutCount;
g_statis.recvTimeoutCount += statis.recvTimeoutCount;
g_statis.unknownErrorCount += statis.unknownErrorCount;
g_totalResponseTime += totalResponseTime;
g_statis.longRTCount += statis.longRTCount;
g_statis.RTStandardDeviation += statis.RTStandardDeviation;
if (g_statis.maxTime < statis.maxTime)
g_statis.maxTime = statis.maxTime;
if (g_statis.minTime > statis.minTime)
g_statis.minTime = statis.minTime;
if (g_totalTestTime < totalTestTime)
g_totalTestTime = totalTestTime;
if (g_statis.RT_50 < statis.RT_50) g_statis.RT_50 = statis.RT_50;
if (g_statis.RT_66 < statis.RT_66) g_statis.RT_66 = statis.RT_66;
if (g_statis.RT_75 < statis.RT_75) g_statis.RT_75 = statis.RT_75;
if (g_statis.RT_80 < statis.RT_80) g_statis.RT_80 = statis.RT_80;
if (g_statis.RT_90 < statis.RT_90) g_statis.RT_90 = statis.RT_90;
if (g_statis.RT_95 < statis.RT_95) g_statis.RT_95 = statis.RT_95;
if (g_statis.RT_98 < statis.RT_98) g_statis.RT_98 = statis.RT_98;
if (g_statis.RT_99 < statis.RT_99) g_statis.RT_99 = statis.RT_99;
} else {
cout << "-- Failed to read file " << f << " --" << endl;
}
}
// 子进程退出处理
static void childExitHandler(int sig)
{
int pid, status;
signal(sig, childExitHandler);
while (1) {
pid = waitpid (WAIT_ANY, &status, WNOHANG);
switch (pid) {
case -1:
if (errno != ECHILD) {
cout << "waitpid error: " << errno << endl;
}
/* goto case 0 */
case 0:
/* no child exits */
return;
default:
// 有子进程退出了
mergeStatis(pid);
g_childNum--;
break;
}
}
}
int main(int argc, char *argv[])
{
if (argc < 3) {
usage(argv[0]);
return 1;
}
// 取参数
const char *group = DEFAULT_GROUP;
const char *hostname = DEFAULT_HOSTNAME;
const char *port = DEFAULT_PORT;
int timeout = DEFAULT_TIMEOUT;
int maxMsgSize = 0;
int childNum = 0;
int limit = 0;
unsigned number = 0;
while (true) {
int c = getopt(argc, argv, "g:b:t:c:m:h:p:n:l:v");
if (c == -1) break;
switch (c) {
case 'h':
hostname = optarg;
break;
case 'p':
port = optarg;
break;
case 'n':
number = strtoul(optarg, NULL, 10);
g_req = number;
break;
case 'g':
group = optarg;
break;
case 'b':
maxMsgSize = atoi(optarg);
DEFAULT_MSG_LEN = maxMsgSize;
break;
case 't':
timeout = atoi(optarg);
break;
case 'c':
childNum = atoi(optarg);
break;
case 'm':
limit = atoi(optarg);
break;
case 'l':
g_rt_threshold = atoi(optarg);
break;
case 'v':
g_verbose = true;
break;
case '?':
case ':':
default:
break;
}
}
char config[1024];
//config file from options.
/*
strcpy(config, "127.0.0.1 role=server group=test2 port=2200\n"
"127.0.0.1 role=client group=test2 port=2200\n");
*/
sprintf(config, "%s role=server group=%s port=%s\n%s role=client group=%s port=%s\n",
hostname, group, port, getIpAddress().c_str(), group, port);
printf("config is:\n%s", config);
if (childNum > 1) {
// fork子进程
signal(SIGCHLD, childExitHandler);
bool isChild = false;
for (int i = 0; i < childNum; i++) {
pid_t pid = fork();
if (pid == 0) {
// child
isChild = true;
break;
} else if ((int)pid < 0) {
// error
cout << "Failed to fork #" << i << endl;
break;
} else {
// parent
g_childNum++;
}
}
if (!isChild) {
// 父进程，等待子进程退出，进行数据统计
childExitHandler(SIGCHLD); // 处理在设置handler之前退出的子进程
while (g_childNum > 0) {
sleep(1);
}
// 显示统计结果
cout << "Test total count : " << g_statis.totalCount << endl;
cout << "Test success: " << g_statis.successCount << endl;
cout << "Test failed: " << g_statis.failedCount << endl;
cout << "Send timeout: " << g_statis.sendTimeoutCount << endl;
cout << "Recv timeout: " << g_statis.recvTimeoutCount << endl;
cout << "Unknow error: " << g_statis.unknownErrorCount << endl;
cout << "Test time: " << g_totalTestTime << " seconds." << endl;
cout << "Query time: " << g_totalResponseTime << " seconds." << endl;
//cout << "QPS: " << g_statis.successCount/g_totalResponseTime << endl;
cout << "QPS: " << g_statis.successCount / g_totalTestTime << endl;
printf("Bandwidth: %.2f MB/s\n", ((uint64_t)g_statis.successCount * DEFAULT_MSG_LEN) / (1024 * 1024 * g_totalTestTime));
printf("Timeout rate: %.2f%%\n", (double)g_statis.recvTimeoutCount * 100 / g_statis.totalCount);
printf("Error rate: %.2f%%\n", (double)g_statis.failedCount * 100 / g_statis.totalCount);
if (g_statis.successCount > 0) {
printf("RTS max: 0.%06u RTS min: 0.%06u RTS mean: %.6f seconds Long RT:%d.\n",
g_statis.maxTime, g_statis.minTime, g_totalResponseTime / g_statis.successCount, g_statis.longRTCount);
cout << "RT Standard Deviation: " << (double)g_statis.RTStandardDeviation / 1000000 << " seconds." << endl;
} else {
cout << "** NO RT data available **" << endl;
}
printf("Percentage of the requests served within a certain time (s)\n");
cout << "50\% " << (double)g_statis.RT_50 / 1000000 << endl;
cout << "66\% " << (double)g_statis.RT_66 / 1000000 << endl;
cout << "75\% " << (double)g_statis.RT_75 / 1000000 << endl;
cout << "80\% " << (double)g_statis.RT_80 / 1000000 << endl;
cout << "90\% " << (double)g_statis.RT_90 / 1000000 << endl;
cout << "95\% " << (double)g_statis.RT_95 / 1000000 << endl;
cout << "98\% " << (double)g_statis.RT_98 / 1000000 << endl;
cout << "99\% " << (double)g_statis.RT_99 / 1000000 << endl;
cout << "100\% " << (double)g_statis.maxTime / 1000000 << "(longest request)" << endl;
exit(0);
}
}
// 设置限时
if (limit > 0) {
signal(SIGALRM, timeToStop);
limit *= 60;
alarm(limit);
}
easy_kfc_t *kfc;
kfc = easy_kfc_create(config, 1);
easy_kfc_start(kfc);
easy_kfc_agent_t *ka = easy_kfc_join_client(kfc, "test2");
if (ka == NULL) {
printf("Failed to join client");
return -1;
}
// 测试
SQueryStatis statis; // 统计结果
time(&statis.beforeTestTime);
testQueries(ka, timeout, statis);
time(&statis.afterTestTime);
easy_eio_stop(kfc->eio);
easy_kfc_wait(kfc);
easy_kfc_destroy(kfc);
double totalTestTime = difftime(statis.afterTestTime, statis.beforeTestTime);
double totalResponseTime = statis.totalResponseTime.tv_sec + statis.totalResponseTime.tv_usec / 1000000.0;
if (childNum > 1) {
// 子进程输出统计结果
writeStatis(statis, totalTestTime, totalResponseTime);
} else {
// 显示统计结果
cout << "Test total count : " << statis.totalCount << endl;
cout << "Test success: " << statis.successCount << endl;
cout << "Test failed: " << statis.failedCount << endl;
cout << "Send timeout: " << statis.sendTimeoutCount << endl;
cout << "Recv timeout: " << statis.recvTimeoutCount << endl;
cout << "Unknow error: " << statis.unknownErrorCount << endl;
cout << "Test time: " << totalTestTime << " seconds." << endl;
cout << "Query time: " << totalResponseTime << " seconds." << endl;
//cout << "QPS: " << statis.successCount/totalResponseTime << endl;
cout << "QPS: " << statis.successCount / totalTestTime << endl;
printf("Bandwidth: %.2f MB/s\n", ((uint64_t)statis.successCount * DEFAULT_MSG_LEN) / (1024 * 1024 * totalTestTime));
printf("Timeout rate: %.2f%%\n", (double)statis.recvTimeoutCount * 100 / statis.totalCount);
printf("Error rate: %.2f%%\n", (double)statis.failedCount * 100 / statis.totalCount);
if (statis.successCount > 0) {
//printf("max RT: %.6f min RT: %.6f mean RT: %.6f seconds.\n", statis.maxTime/1000000.0, statis.minTime/1000000.0, totalResponseTime/statis.successCount);
printf("RTS max: 0.%06u RTS min: 0.%06u RTS mean: %.6f seconds Long RT: %d.\n",
statis.maxTime, statis.minTime, totalResponseTime / statis.successCount, statis.longRTCount);
cout << "RT Standard Deviation: " << (double)statis.RTStandardDeviation / 1000000 << " seconds." << endl;
} else {
cout << "** NO RT data available **" << endl;
}
printf("Percentage of the requests served within a certain time (s)\n");
cout << "50\% " << (double)statis.RT_50 / 1000000 << endl;
cout << "66\% " << (double)statis.RT_66 / 1000000 << endl;
cout << "75\% " << (double)statis.RT_75 / 1000000 << endl;
cout << "80\% " << (double)statis.RT_80 / 1000000 << endl;
cout << "90\% " << (double)statis.RT_90 / 1000000 << endl;
cout << "95\% " << (double)statis.RT_95 / 1000000 << endl;
cout << "98\% " << (double)statis.RT_98 / 1000000 << endl;
cout << "99\% " << (double)statis.RT_99 / 1000000 << endl;
cout << "100\% " << (double)statis.maxTime / 1000000 << "(longest request)" << endl;
}
return 0;
}