revert tcp stat. need more refine. 0.9.182

@@ -90,7 +90,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 // update network devices info interval:
 //      SRS_SYS_CYCLE_INTERVAL * SRS_SYS_NETWORK_RTMP_SERVER_RESOLUTION_TIMES
-#define SRS_SYS_NETWORK_RTMP_SERVER_RESOLUTION_TIMES 120
+#define SRS_SYS_NETWORK_RTMP_SERVER_RESOLUTION_TIMES 90
 
 SrsListener::SrsListener(SrsServer* server, SrsListenerType type)
 {

@@ -833,18 +833,10 @@ void srs_update_rtmp_server(int nb_conn, SrsKbps* kbps)
         int nb_conn_sys_other = 0;
         
         // @see: http://tester-higkoo.googlecode.com/svn-history/r14/trunk/Tools/iostat/iostat.c
-        for (int i = 0; fgets(buf, sizeof(buf), f); i++) {
+        while (fgets(buf, sizeof(buf), f)) {
             int st = 0;
             int ret = sscanf(buf, "%*s %*s %*s %2x\n", &st);
             
-            // there are maybe many many connections,
-            // for example, when srs used for monitor other process,
-            // like nginx, there are maybe many TIME_WAIT conections.
-            // we sleep 10ms when read 1000 records, so 1000ms for 10w connections.
-            if ((i % 1000) == 0) {
-                st_usleep(10 * 1000);
-            }
-            
             if (ret == 1) {
                 if (st == SYS_TCP_ESTABLISHED) {
                     nb_conn_sys_established++;

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR "0"
 #define VERSION_MINOR "9"
-#define VERSION_REVISION "181"
+#define VERSION_REVISION "182"
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"