下载源码编译，memcached就是生成的主程序，启动可指定端口，memcached作为server端，依然是我们熟悉的cs模式，使用两个client一个setkey，一个getkey一百万个做测试。

./memcached -d -m 300 -p 11211 -u root -c 4096

#include "../libmemcached-1.0.7/libmemcached/memcached.h"
#include<iostream>
#include<string>
#include<time.h>
using std::string;
using std::cout;
using std::endl;class MemCachedClient
{public:~MemCachedClient(){memcached_free(memc);};MemCachedClient(){memcached_return rc;memcached_server_st *server = NULL;memc = memcached_create(NULL);server =memcached_server_list_append(server, "127.0.0.1", 11211, &rc);rc=memcached_server_push(memc,server);if (MEMCACHED_SUCCESS != rc){cout <<"memcached_server_push failed! rc: " << rc << endl;}memcached_server_list_free(server);};int Insert(const char* key, const char* value,time_t expiration = 3){if (NULL == key || NULL == value){return -1;}uint32_t flags = 0;memcached_return rc;rc = memcached_set(memc, key, strlen(key),value, strlen(value)+1, expiration, flags);if (MEMCACHED_SUCCESS == rc){return 1;}else{return 0;}};string Get(const char* key){if (NULL == key){return "";}uint32_t flags = 0;memcached_return rc;size_t value_length;char* value = memcached_get(memc, key, strlen(key), &value_length, &flags, &rc);if(rc == MEMCACHED_SUCCESS){return value;}return "";};private:memcached_st* memc;
};#include<iostream>
using std::cout;
using std::endl;
#include<time.h>
#include<stdlib.h>
#include<stdio.h>int main()
{MemCachedClient mc;clock_t begin_tick_counts = clock();long object_nums = 1000000;char buff[32];for (int i=0; i<=object_nums; ++i){sprintf(buff, "key-%d",i);mc.Insert(buff,buff, 60);//printf("%s\n", mc.Get(buff).c_str());}clock_t end_tick_counts = clock();printf("set %ld values costs %f ticks\n", object_nums, (double)(end_tick_counts - begin_tick_counts)/CLOCKS_PER_SEC);return 1;
}

TARGET = test_memcached_getkey
SOURCE = test_memcached_getkey.cpp
CFLAG  = -g3 -O0 -Wl,-rpath=./ -lmemcachedTARGET:g++ $(SOURCE) -o $(TARGET) $(CFLAG)
test_memcached_setkey:g++ test_memcached_setkey.cpp -o test_memcached_setkey $(CFLAG)
.phony:clean
clean:rm $(TARGET)rm test_memcached_setkey