提高ZeroMQ REQ / REP性能(Improve ZeroMQ REQ/REP performance)

 我使用的是ZeroMQ 3.2.3和CZmq 1.4.1。 我尝试了“Hello world”示例。 该示例（ https://github.com/imatix/zguide/tree/master/examples/C ）在使用10个并发客户端时，允许我每秒钟在Intel i7上交换最多12500条消息（总计8 GB RAM，总计8个核心）在本地主机上（Ubuntu 13.04）。 
 
 我读了ZeroMQ可以处理更多。 我做错了什么，或者错过了什么？ 
 
 以下是示例代码： 
 
//  Hello World server

#include <zmq.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>

int main (void)
{
    //  Socket to talk to clients
    void *context = zmq_ctx_new ();
    void *responder = zmq_socket (context, ZMQ_REP);
    int rc = zmq_bind (responder, "tcp://*:5555");
    assert (rc == 0);

    while (1) {
        char buffer [10];
        zmq_recv (responder, buffer, 10, 0);
        //printf ("Received Hello\n");
        zmq_send (responder, "World", 5, 0);
        //usleep (1);          //  Do some 'work'
    }
    return 0;
}



//  Hello World client
#include <zmq.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>

int main (void)
{
    printf ("Connecting to hello world server...\n");
    void *context = zmq_ctx_new ();
    void *requester = zmq_socket (context, ZMQ_REQ);
    zmq_connect (requester, "tcp://localhost:5555");

    int request_nbr;
    for (request_nbr = 0; request_nbr != 100000; request_nbr++) {
        char buffer [10];
//        printf ("Sending Hello %d...\n", request_nbr);
        zmq_send (requester, "Hello", 5, 0);
        zmq_recv (requester, buffer, 10, 0);
//        printf ("Received World %d\n", request_nbr);
    }
    zmq_close (requester);
    zmq_ctx_destroy (context);
    return 0;
}
 
 谢谢 ！ 

I'm using ZeroMQ 3.2.3 and CZmq 1.4.1. I gave the "Hello world" sample a try. That sample (https://github.com/imatix/zguide/tree/master/examples/C), when using 10 concurrent clients, allows me to exchange at most 12500 messages per second on a Intel i7 (8 GB RAM, total 8 cores) on the localhost (Ubuntu 13.04).
 
I read ZeroMQ could handle much more. Am I doing something wrong, or missing something ?
 
Here is the sample code :
 
//  Hello World server

#include <zmq.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>

int main (void)
{
    //  Socket to talk to clients
    void *context = zmq_ctx_new ();
    void *responder = zmq_socket (context, ZMQ_REP);
    int rc = zmq_bind (responder, "tcp://*:5555");
    assert (rc == 0);

    while (1) {
        char buffer [10];
        zmq_recv (responder, buffer, 10, 0);
        //printf ("Received Hello\n");
        zmq_send (responder, "World", 5, 0);
        //usleep (1);          //  Do some 'work'
    }
    return 0;
}



//  Hello World client
#include <zmq.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>

int main (void)
{
    printf ("Connecting to hello world server...\n");
    void *context = zmq_ctx_new ();
    void *requester = zmq_socket (context, ZMQ_REQ);
    zmq_connect (requester, "tcp://localhost:5555");

    int request_nbr;
    for (request_nbr = 0; request_nbr != 100000; request_nbr++) {
        char buffer [10];
//        printf ("Sending Hello %d...\n", request_nbr);
        zmq_send (requester, "Hello", 5, 0);
        zmq_recv (requester, buffer, 10, 0);
//        printf ("Received World %d\n", request_nbr);
    }
    zmq_close (requester);
    zmq_ctx_destroy (context);
    return 0;
}
 
Thank you !

原文：https://stackoverflow.com/questions/17054562