Index: /trunk/src/VBox/ValidationKit/testmanager/webui/wuilogviewer.py
===================================================================
--- /trunk/src/VBox/ValidationKit/testmanager/webui/wuilogviewer.py	(revision 61415)
+++ /trunk/src/VBox/ValidationKit/testmanager/webui/wuilogviewer.py	(revision 61416)
@@ -149,8 +149,8 @@
         # Got to where we wanted, format the chunk.
         #
-        sHtml = '\n<div class="tmlog">\n<pre>\n';
+        asLines = [];
         while True:
-            sHtml += '<a id="L%d" href="#L%d">%05d</a><a id="O%d"> </a>%s\n' \
-                   % (iLine, iLine, iLine, offLine, webutils.escapeElem(sLine.rstrip()));
+            asLines.append('<a id="L%d" href="#L%d">%05d</a><a id="O%d"></a>%s\n' \
+                           % (iLine, iLine, iLine, offLine, webutils.escapeElem(sLine.rstrip())));
             if offCur >= offEnd:
                 break;
@@ -161,7 +161,5 @@
             if len(sLine) == 0:
                 break;
-        sHtml += '<pre/></div>\n';
-
-        return sHtml;
+        return '\n<div class="tmlog">\n<pre>\n' + ''.join(asLines) + '<pre/></div>\n';
 
 
Index: /trunk/src/VBox/ValidationKit/testmanager/webui/wuimain.py
===================================================================
--- /trunk/src/VBox/ValidationKit/testmanager/webui/wuimain.py	(revision 61415)
+++ /trunk/src/VBox/ValidationKit/testmanager/webui/wuimain.py	(revision 61416)
@@ -971,5 +971,5 @@
         idTestSet       = self.getIntParam(self.ksParamLogSetId,     iMin = 1);
         idLogFile       = self.getIntParam(self.ksParamLogFileId,    iMin = 0,                    iDefault = 0);
-        cbChunk         = self.getIntParam(self.ksParamLogChunkSize, iMin = 256, iMax = 16777216, iDefault = 65536);
+        cbChunk         = self.getIntParam(self.ksParamLogChunkSize, iMin = 256, iMax = 16777216, iDefault = 1024*1024);
         iChunk          = self.getIntParam(self.ksParamLogChunkNo,   iMin = 0,
                                            iMax = config.g_kcMbMaxMainLog * 1048576 / cbChunk,    iDefault = 0);