NDT-DEV email list created

Revision: 1017
Author:   

Date:     Fri Mar 14 08:48:32 2014 UTC
Log:      Allow retrieving download/upload speed in realtime (java applet)

http://code.google.com/p/ndt/source/detail?r=1017

Modified:
 /branches/Issue130/Applet/src/edu/internet2/ndt/Tcpbw100.java

=======================================
--- /branches/Issue130/Applet/src/edu/internet2/ndt/Tcpbw100.java	Wed Mar   
5 08:15:36 2014 UTC
+++ /branches/Issue130/Applet/src/edu/internet2/ndt/Tcpbw100.java	Fri Mar  
14 08:48:32 2014 UTC
@@ -92,6 +92,8 @@
 import java.util.Locale;
 import java.util.ResourceBundle;
 import java.util.StringTokenizer;
+import java.util.Timer;
+import java.util.TimerTask;

 import javax.swing.BorderFactory;
 import javax.swing.BoxLayout;
@@ -165,6 +167,7 @@
        NewFrame _frameWeb100Vars, _frameDetailedStats, _frameOptions;
        // String s; Unused, commenting out
        double _dTime;
+        int _s2cspdUpdateTime = 500, _c2sspdUpdateTime = 500; // ms
        int _iECNEnabled, _iNagleEnabled, MSSSent, MSSRcvd;
        int _iSACKEnabled, _iTimestampsEnabled, _iWinScaleRcvd, 
_iWinScaleSent;
        int _iFastRetran, _iAckPktsOut, _iSmoothedRTT, _iCurrentCwnd, 
_iMaxCwnd;
@@ -174,7 +177,7 @@
        int _iSumRTT, _iCountRTT, _iCurrentMSS, _iTimeouts, _iPktsRetrans;
        int _iSACKsRcvd, _iDupAcksIn, _iMaxRwinRcvd, _iMaxRwinSent;
        int _iDataPktsOut, _iRcvbuf, _iSndbuf, _iAckPktsIn;
-    long _iDataBytesOut;
+        long _iDataBytesOut;
        int _iPktsOut, _iCongestionSignals, _iRcvWinScale;
        // int _iPkts, _iLength=8192, _iCurrentRTO;
        int _iPkts, _iLength = NDTConstants.PREDEFINED_BUFFER_SIZE, 
_iCurrentRTO;
@@ -188,6 +191,7 @@
        double _dS2cspd, _dC2sspd, _dSc2sspd, _dSs2cspd;
        int _iSsndqueue;
        double _dSbytes;
+        byte[] _yabuff2Write;

        /**
         * Added by Martin Sandsmark, UNINETT AS Internationalization
@@ -1680,7 +1684,7 @@

                // byte buff2[] = new byte[8192];
                // Initialise for 64 Kb
-               byte yabuff2Write[] = new byte[64 * NDTConstants.KILO_BITS];
+               _yabuff2Write = new byte[64 * NDTConstants.KILO_BITS];
                Message msg = new Message();
                // start C2S throughput tests
                if ((_yTests & NDTConstants.TEST_C2S) == 
NDTConstants.TEST_C2S) {
@@ -1770,7 +1774,7 @@
                                if (c == 'z') {
                                        c = '0';
                                }
-                               yabuff2Write[i] = c++;
+                                _yabuff2Write[i] = c++;
                        }
                        System.err.println("******Send buffer size =" + i);

@@ -1801,12 +1805,21 @@
                                }
                        }.start();

+                        Timer c2sspdUpdateTimer = new Timer();
+                        c2sspdUpdateTimer.scheduleAtFixedRate(new  
TimerTask() {
+                            @Override
+                            public void run() {
+                                pub_c2sspd = ((NDTConstants.EIGHT * _iPkts  
* _yabuff2Write.length) / NDTConstants.KILO)
+                                        / (System.currentTimeMillis() -  
_dTime);
+                            }
+                        }, 100, _c2sspdUpdateTime);
+
                        // While the 10 s timer ticks, write buffer data into 
server socket
                        while (true) {
                                // System.err.println("Send pkt = " + pkts + "; at 
" +
                                // System.currentTimeMillis());
                                try {
-                                       outStream.write(yabuff2Write, 0, 
yabuff2Write.length);
+                                       outStream.write(_yabuff2Write, 0, 
_yabuff2Write.length);
                                } catch (SocketException e) {
                                        System.out.println("SocketException while 
writing to server" + e);
                                        break;
@@ -1826,18 +1839,19 @@
                                pub_bytes = (_iPkts * _iLength);
                        }

+                        c2sspdUpdateTimer.cancel();
                        _dTime = System.currentTimeMillis() - _dTime;
                        System.err.println(_dTime + " millisec test completed" + 
","
-                                       + yabuff2Write.length + ","+ _iPkts);
+                                       + _yabuff2Write.length + ","+ _iPkts);
                        if (_dTime == 0) {
                                _dTime = 1;
                        }

                        // Calculate C2S throughput in kbps
-			System.out.println((NDTConstants.EIGHT * _iPkts * yabuff2Write.length)  
/ _dTime
+			System.out.println((NDTConstants.EIGHT * _iPkts * _yabuff2Write.length)  
/ _dTime
                                        + " kb/s outbound"); //*8 for 
calculating bits

-			_dC2sspd = ((NDTConstants.EIGHT * _iPkts * yabuff2Write.length) /  
NDTConstants.KILO)
+			_dC2sspd = ((NDTConstants.EIGHT * _iPkts * _yabuff2Write.length) /  
NDTConstants.KILO)
                                        / _dTime;

                        // The client has stopped streaming data, and the 
server is now
@@ -2012,6 +2026,15 @@
                        _dTime = System.currentTimeMillis();
                        pub_time = _dTime;

+                        Timer s2cspdUpdateTimer = new Timer();
+                        s2cspdUpdateTimer.scheduleAtFixedRate(new  
TimerTask() {
+                            @Override
+                            public void run() {
+                                pub_s2cspd = ((NDTConstants.EIGHT *  
pub_bytes) / NDTConstants.KILO)
+                                        / (System.currentTimeMillis() -  
_dTime);
+                            }
+                        }, 100, _s2cspdUpdateTime);
+
                        // read data sent by server
                        try {
                                while ((inlth = srvin.read(buff, 0, 
buff.length)) > 0) {
@@ -2027,7 +2050,9 @@
                                                + sHostName + ":" + ioExcep);
                                _sErrMsg = "Server Failed while reading socket 
data\n";
                                return true;
-                       }
+                       } finally {
+                                s2cspdUpdateTimer.cancel();
+                        }

                        // get time duration during which bytes were received
                        _dTime = System.currentTimeMillis() - _dTime;