需改ebpf程序探测内核，测试性能，验证想法，更新笔记。

reactor.c

@@ -243,8 +243,6 @@ int send_cb(int fd) {
 	struct conn *c = &conn_list[fd];
     int sent_total = 0;
 
-	pthread_mutex_lock(&c->g_sync_lock);
-
 	while (c->wlength > 0) {
 		ssize_t n = send(fd, c->wbuffer, (size_t)c->wlength, MSG_NOSIGNAL);
 		if (n > 0) {
@@ -268,14 +266,12 @@ int send_cb(int fd) {
 		if (n < 0) {
             if (errno == EAGAIN || errno == EWOULDBLOCK) {
                 /* 暂时发不出去，等下一次可写事件 */
-                pthread_mutex_unlock(&c->g_sync_lock);
                 set_event(fd, EPOLLOUT, 0);
                 return sent_total;
             }
 
             /* 对端断开 / 其他错误 */
             int e = errno;
-            pthread_mutex_unlock(&c->g_sync_lock);
 
             printf("send fd=%d errno=%d %s\n", fd, e, strerror(e));
             epoll_ctl(epfd, EPOLL_CTL_DEL, fd, NULL);
@@ -285,9 +281,8 @@ int send_cb(int fd) {
 
         break;
 	}
-	pthread_mutex_unlock(&c->g_sync_lock);
 
-    if (c->wlength > 0) {
+	if (c->wlength > 0) {
         /* 还有没发完，继续监听可写 */
         set_event(fd, EPOLLOUT, 0);
     } else {
@@ -295,6 +290,8 @@ int send_cb(int fd) {
         set_event(fd, EPOLLIN, 0);
     }
 
+	// printf("send_total :%d; remain: %d\n", sent_total, c->wlength);
+
     return sent_total;
 }