the first version test file

client1.c

#include <sys/types.h>
#include <sys/time.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <err.h>
#include <event.h>
#include <evhttp.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <time.h>
#include <pthread.h>

#define BUFSIZE 4096
#define NUMCONNS 62000
#define SERVERADDR "192.168.190.133"
#define SERVERPORT 8000
#define SLEEP_MS 10

char buf[BUFSIZE];

int bytes_recvd = 0;
int chunks_recvd = 0;
int closed = 0;
int connected = 0;

void chunkcb(struct evhttp_request *req, void *arg) {
    int s = evbuffer_remove( req->input_buffer, &buf, BUFSIZE );
    bytes_recvd += s;
    chunks_recvd++;
    if (connected >= NUMCONNS && chunks_recvd % 10000 == 0)
        printf(">Chunks: %d\tBytes: %d\tClosed: %d\n", chunks_recvd, bytes_recvd, closed);
}

void reqcb(struct evhttp_request *req, void *arg) {
    closed++;
}

int main(int argc, char **argv) {
    event_init();
    struct evhttp *evhttp_connection;
    struct evhttp_request *evhttp_request;
    char path[32]; // eg: "/test/123"
    int i;
    for (i = 1; i <= NUMCONNS; i++) {
        evhttp_connection = evhttp_connection_new(SERVERADDR, SERVERPORT);
        evhttp_set_timeout(evhttp_connection, 864000); // 10 day timeout
        evhttp_request = evhttp_request_new(reqcb, NULL);
        evhttp_request->chunk_cb = chunkcb;
        sprintf(&path, "/test/%d", ++connected);
        if (i % 100 == 0)  printf("Req: %s\t->\t%s\n", SERVERADDR, &path);
        evhttp_make_request( evhttp_connection, evhttp_request, EVHTTP_REQ_GET, path );
        evhttp_connection_set_timeout(evhttp_request->evcon, 864000);
        event_loop( EVLOOP_NONBLOCK );
        if ( connected % 200 == 0 )
            printf("\nChunks: %d\tBytes: %d\tClosed: %d\n", chunks_recvd, bytes_recvd, closed);
        usleep(SLEEP_MS * 1000);
    }

    event_dispatch();
    return 0;
}