ApacheBenchの結果の見方

    printf("Failed requests:        %ld\\n", bad);
    if (bad)
	printf("   (Connect: %d, Length: %d, Exceptions: %d)\\n",
	       err_conn, err_length, err_except);

static void close_connection(struct connection * c)
{
    if (c->read == 0 && c->keepalive) {
        /*
         * server has legitimately shut down an idle keep alive request
         */
        if (good)
            good--;             /* connection never happened */
    }
    else {
        if (good == 1) {
            /* first time here */
            doclen = c->bread;
        }
        else if (c->bread != doclen) {
            bad++;
            err_length++;
        }

struct connection {
    apr_pool_t *ctx;
    apr_socket_t *aprsock;
    int state;
    apr_size_t read;            /* amount of bytes read */
    apr_size_t bread;           /* amount of body read */

    status = apr_recv(c->aprsock, buffer, &r);
    if (APR_STATUS_IS_EAGAIN(status))
        return;
    else if (r == 0 && APR_STATUS_IS_EOF(status)) {
        good++;
        close_connection(c);
        return;
    }
    /* catch legitimate fatal apr_recv errors */
    else if (status != APR_SUCCESS) {
        err_except++; /* XXX: is this the right error counter? */
        /* XXX: Should errors here be fatal, or should we allow a
         * certain number of them before completely failing? -aaron */
        apr_err("apr_recv", status);
    }