diff --git a/CHANGES.rst b/CHANGES.rst
index 50e7069..07feea6 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,6 +4,9 @@ Changes
 2.0.0 (unreleased)
 ------------------
 
+- Fix logic bug in seconds_difference() that could introduce error up to nearly
+  a whole second for any particular event.
+
 - Limit number precision in HTML reports to 3 decimal digits.
 
 - Drop Python 2.6 support.
diff --git a/src/zc/zservertracelog/tests.py b/src/zc/zservertracelog/tests.py
index bb49fc3..8e65832 100644
--- a/src/zc/zservertracelog/tests.py
+++ b/src/zc/zservertracelog/tests.py
@@ -16,6 +16,7 @@
 """
 __docformat__ = "reStructuredText"
 
+import datetime
 import doctest
 import os
 import re
@@ -26,7 +27,9 @@
 import manuel.testing
 import zope.testing.renormalizing
 
-from zc.zservertracelog.fseek import FSeekTest
+from zc.zservertracelog.fseek import FSeekTest  # noqa
+from zc.zservertracelog.tracereport import seconds_difference
+
 
 here = os.path.dirname(os.path.abspath(__file__))
 
@@ -59,6 +62,14 @@ def __call__(self, environ, start_response):
         return app(environ, start_response)
 
 
+class TestHelpers(unittest.TestCase):
+
+    def test_seconds_difference(self):
+        dt1 = datetime.datetime(2019, 2, 23, 14, 5, 54, 451)
+        dt2 = dt1 + datetime.timedelta(minutes=15, seconds=3, microseconds=42)
+        self.assertEqual(seconds_difference(dt2, dt1), 15 * 60 + 3 + 0.000042)
+
+
 def setUp(test):
     test.globs['FauxApplication'] = FauxApplication
 
@@ -79,5 +90,5 @@ def test_suite():
             'tracereport.rst',
             checker=checker,
             setUp=analysis_setUp),
-        unittest.makeSuite(FSeekTest),
+        unittest.defaultTestLoader.loadTestsFromName(__name__),
     ])
diff --git a/src/zc/zservertracelog/tracereport.py b/src/zc/zservertracelog/tracereport.py
index 9220b9c..7ca83c1 100755
--- a/src/zc/zservertracelog/tracereport.py
+++ b/src/zc/zservertracelog/tracereport.py
@@ -137,8 +137,7 @@ def __add__(self, other):
 
 def seconds_difference(dt1, dt2):
     delta = dt1 - dt2
-    micros = float('0.' + str(delta.microseconds))    # XXX: this is Wrong!
-    return delta.seconds + micros
+    return delta.seconds + delta.microseconds * 1e-6
 
 
 def parse_line(line):
diff --git a/src/zc/zservertracelog/tracereport.rst b/src/zc/zservertracelog/tracereport.rst
index 5f8386b..34c4c33 100644
--- a/src/zc/zservertracelog/tracereport.rst
+++ b/src/zc/zservertracelog/tracereport.rst
@@ -88,34 +88,34 @@ Here, we display the summarized report for a sample trace log.
     ========= ===== ====== ====== ====== ====== =====
          62.4     1  62.42  62.42  62.42  62.42     0 /constellations/andromeda.html
          61.5     1  61.50  61.50  61.50  61.50     0 /stars/alpha-centauri.html
-         60.7     2   0.34  30.34  30.34  60.34     0 /space-travel/plans/supplies.txt
          60.3     2   0.13  30.13  30.13  60.13     0 /favicon.png
+         60.0     2   0.00  30.00  30.00  60.00     0 /space-travel/plans/supplies.txt
           9.7     1   9.69   9.69   9.69   9.69     0 /planets/saturn.html
           8.3     1   8.30   8.30   8.30   8.30     0 /moons/io.html
           7.3     1   7.34   7.34   7.34   7.34     0 /planets/jupiter.html
-          1.0     3   0.31   0.35   0.35   0.38     0 /space-travel/plans/signals.html
           0.9     1   0.88   0.88   0.88   0.88     0 /stories/aliens-posing-as-humans.html
-          0.8     2   0.35   0.39   0.39   0.42     0 /space-travel/plans/launchpad.html
-          0.7     1   0.36   0.36   0.36   0.36     1 /space-travel/plans/orbit.html
-          0.7     2   0.34   0.36   0.36   0.38     0 /space-travel/plans/space-logs.txt
-          0.7     2   0.35   0.35   0.35   0.35     0 /space-travel/plans/moon-base.jpg
           0.6     1   0.64   0.64   0.64   0.64     0 /columns/t-jansen
-          0.5     3   0.15   0.16   0.16   0.18     0 /space-travelers/famous/kirk.jpg
-          0.4     1   0.40   0.40   0.40   0.40     0 /space-travel/plans/moon-buggy.jpg
-          0.4     1   0.38   0.38   0.38   0.38     0 /space-travel/plans/space-diary.txt
           0.4     2   0.18   0.19   0.19   0.19     0 /faqs/how-to-recognize-lazer-fire.html
-          0.4     1   0.35   0.35   0.35   0.35     0 /js/photo.js
-          0.4     1   0.35   0.35   0.35   0.35     0 /space-travel/plans/visor.jpg
-          0.4     1   0.35   0.35   0.35   0.35     0 /space-travel/plans/lunar-cycles.html
           0.4     1   0.35   0.35   0.35   0.35     0 /faqs/how-to-charge-lazers.html
-          0.3     1   0.33   0.33   0.33   0.33     0 /space-travel/plans/cryostasis.txt
-          0.3     1   0.32   0.32   0.32   0.32     0 /space-travel/plans/space-suit.jpg
           0.3     1   0.32   0.32   0.32   0.32     0 /space-travel/ships/tardis.html
           0.3     1   0.25   0.25   0.25   0.25     0 /approve-photo
           0.2     1   0.18   0.18   0.18   0.18     0 /ufo-sightings/report
-          0.2     1   0.16   0.16   0.16   0.16     0 /space-travelers/famous/spock.jpg
-          0.2     1   0.16   0.16   0.16   0.16     0 /login
           0.1     1   0.14   0.14   0.14   0.14     0 /space-travel/ships/soyuz.html
+          0.0     3   0.02   0.02   0.02   0.02     0 /space-travelers/famous/kirk.jpg
+          0.0     1   0.02   0.02   0.02   0.02     0 /space-travelers/famous/spock.jpg
+          0.0     1   0.02   0.02   0.02   0.02     0 /login
+          0.0     3   0.00   0.00   0.00   0.00     0 /space-travel/plans/signals.html
+          0.0     2   0.00   0.00   0.00   0.00     0 /space-travel/plans/launchpad.html
+          0.0     1   0.00   0.00   0.00   0.00     1 /space-travel/plans/orbit.html
+          0.0     2   0.00   0.00   0.00   0.00     0 /space-travel/plans/space-logs.txt
+          0.0     2   0.00   0.00   0.00   0.00     0 /space-travel/plans/moon-base.jpg
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/moon-buggy.jpg
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/space-diary.txt
+          0.0     1   0.00   0.00   0.00   0.00     0 /js/photo.js
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/visor.jpg
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/lunar-cycles.html
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/cryostasis.txt
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/space-suit.jpg
                   0                                 1 /submit-photo
 
 This can also be displayed as HTML.
@@ -137,13 +137,13 @@ This can also be displayed as HTML.
     <td>/stars/alpha-centauri.html</td>
     </tr>
     <tr>
-    <td><a name="u34">60.7</a></td><td>2</td><td>0.337</td><td>30.340</td><td>30.340</td><td>60.343</td><td>0</td>
-    <td>/space-travel/plans/supplies.txt</td>
-    </tr>
-    <tr style="background: lightgrey;">
     <td><a name="u44">60.3</a></td><td>2</td><td>0.133</td><td>30.134</td><td>30.134</td><td>60.134</td><td>0</td>
     <td>/favicon.png</td>
     </tr>
+    <tr style="background: lightgrey;">
+    <td><a name="u34">60.0</a></td><td>2</td><td>0.003</td><td>30.003</td><td>30.003</td><td>60.003</td><td>0</td>
+    <td>/space-travel/plans/supplies.txt</td>
+    </tr>
     <tr>
     <td><a name="u48">9.7</a></td><td>1</td><td>9.694</td><td>9.694</td><td>9.694</td><td>9.694</td><td>0</td>
     <td>/planets/saturn.html</td>
@@ -157,96 +157,96 @@ This can also be displayed as HTML.
     <td>/planets/jupiter.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u56">1.0</a></td><td>3</td><td>0.309</td><td>0.353</td><td>0.346</td><td>0.378</td><td>0</td>
-    <td>/space-travel/plans/signals.html</td>
-    </tr>
-    <tr>
     <td><a name="u60">0.9</a></td><td>1</td><td>0.880</td><td>0.880</td><td>0.880</td><td>0.880</td><td>0</td>
     <td>/stories/aliens-posing-as-humans.html</td>
     </tr>
+    <tr>
+    <td><a name="u33">0.6</a></td><td>1</td><td>0.638</td><td>0.638</td><td>0.638</td><td>0.638</td><td>0</td>
+    <td>/columns/t-jansen</td>
+    </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u36">0.8</a></td><td>2</td><td>0.352</td><td>0.388</td><td>0.388</td><td>0.423</td><td>0</td>
-    <td>/space-travel/plans/launchpad.html</td>
+    <td><a name="u41">0.4</a></td><td>2</td><td>0.184</td><td>0.187</td><td>0.187</td><td>0.190</td><td>0</td>
+    <td>/faqs/how-to-recognize-lazer-fire.html</td>
     </tr>
     <tr>
-    <td><a name="u62">0.7</a></td><td>1</td><td>0.364</td><td>0.364</td><td>0.364</td><td>0.364</td><td>1</td>
-    <td>/space-travel/plans/orbit.html</td>
+    <td><a name="u54">0.4</a></td><td>1</td><td>0.351</td><td>0.351</td><td>0.351</td><td>0.351</td><td>0</td>
+    <td>/faqs/how-to-charge-lazers.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u38">0.7</a></td><td>2</td><td>0.339</td><td>0.361</td><td>0.361</td><td>0.384</td><td>0</td>
-    <td>/space-travel/plans/space-logs.txt</td>
+    <td><a name="u50">0.3</a></td><td>1</td><td>0.320</td><td>0.320</td><td>0.320</td><td>0.320</td><td>0</td>
+    <td>/space-travel/ships/tardis.html</td>
     </tr>
     <tr>
-    <td><a name="u35">0.7</a></td><td>2</td><td>0.347</td><td>0.349</td><td>0.349</td><td>0.351</td><td>0</td>
-    <td>/space-travel/plans/moon-base.jpg</td>
+    <td><a name="u39">0.3</a></td><td>1</td><td>0.253</td><td>0.253</td><td>0.253</td><td>0.253</td><td>0</td>
+    <td>/approve-photo</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u33">0.6</a></td><td>1</td><td>0.638</td><td>0.638</td><td>0.638</td><td>0.638</td><td>0</td>
-    <td>/columns/t-jansen</td>
+    <td><a name="u57">0.2</a></td><td>1</td><td>0.182</td><td>0.182</td><td>0.182</td><td>0.182</td><td>0</td>
+    <td>/ufo-sightings/report</td>
     </tr>
     <tr>
-    <td><a name="u45">0.5</a></td><td>3</td><td>0.153</td><td>0.161</td><td>0.164</td><td>0.177</td><td>0</td>
-    <td>/space-travelers/famous/kirk.jpg</td>
+    <td><a name="u61">0.1</a></td><td>1</td><td>0.138</td><td>0.138</td><td>0.138</td><td>0.138</td><td>0</td>
+    <td>/space-travel/ships/soyuz.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u46">0.4</a></td><td>1</td><td>0.397</td><td>0.397</td><td>0.397</td><td>0.397</td><td>0</td>
-    <td>/space-travel/plans/moon-buggy.jpg</td>
+    <td><a name="u45">0.0</a></td><td>3</td><td>0.015</td><td>0.016</td><td>0.016</td><td>0.018</td><td>0</td>
+    <td>/space-travelers/famous/kirk.jpg</td>
     </tr>
     <tr>
-    <td><a name="u49">0.4</a></td><td>1</td><td>0.379</td><td>0.379</td><td>0.379</td><td>0.379</td><td>0</td>
-    <td>/space-travel/plans/space-diary.txt</td>
+    <td><a name="u59">0.0</a></td><td>1</td><td>0.016</td><td>0.016</td><td>0.016</td><td>0.016</td><td>0</td>
+    <td>/space-travelers/famous/spock.jpg</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u41">0.4</a></td><td>2</td><td>0.184</td><td>0.187</td><td>0.187</td><td>0.190</td><td>0</td>
-    <td>/faqs/how-to-recognize-lazer-fire.html</td>
+    <td><a name="u43">0.0</a></td><td>1</td><td>0.016</td><td>0.016</td><td>0.016</td><td>0.016</td><td>0</td>
+    <td>/login</td>
     </tr>
     <tr>
-    <td><a name="u58">0.4</a></td><td>1</td><td>0.354</td><td>0.354</td><td>0.354</td><td>0.354</td><td>0</td>
-    <td>/js/photo.js</td>
+    <td><a name="u56">0.0</a></td><td>3</td><td>0.003</td><td>0.004</td><td>0.003</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/signals.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u63">0.4</a></td><td>1</td><td>0.354</td><td>0.354</td><td>0.354</td><td>0.354</td><td>0</td>
-    <td>/space-travel/plans/visor.jpg</td>
+    <td><a name="u36">0.0</a></td><td>2</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/launchpad.html</td>
     </tr>
     <tr>
-    <td><a name="u52">0.4</a></td><td>1</td><td>0.353</td><td>0.353</td><td>0.353</td><td>0.353</td><td>0</td>
-    <td>/space-travel/plans/lunar-cycles.html</td>
+    <td><a name="u62">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>1</td>
+    <td>/space-travel/plans/orbit.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u54">0.4</a></td><td>1</td><td>0.351</td><td>0.351</td><td>0.351</td><td>0.351</td><td>0</td>
-    <td>/faqs/how-to-charge-lazers.html</td>
+    <td><a name="u38">0.0</a></td><td>2</td><td>0.003</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/space-logs.txt</td>
     </tr>
     <tr>
-    <td><a name="u40">0.3</a></td><td>1</td><td>0.333</td><td>0.333</td><td>0.333</td><td>0.333</td><td>0</td>
-    <td>/space-travel/plans/cryostasis.txt</td>
+    <td><a name="u35">0.0</a></td><td>2</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/moon-base.jpg</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u47">0.3</a></td><td>1</td><td>0.321</td><td>0.321</td><td>0.321</td><td>0.321</td><td>0</td>
-    <td>/space-travel/plans/space-suit.jpg</td>
+    <td><a name="u46">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/moon-buggy.jpg</td>
     </tr>
     <tr>
-    <td><a name="u50">0.3</a></td><td>1</td><td>0.320</td><td>0.320</td><td>0.320</td><td>0.320</td><td>0</td>
-    <td>/space-travel/ships/tardis.html</td>
+    <td><a name="u49">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/space-diary.txt</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u39">0.3</a></td><td>1</td><td>0.253</td><td>0.253</td><td>0.253</td><td>0.253</td><td>0</td>
-    <td>/approve-photo</td>
+    <td><a name="u58">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/js/photo.js</td>
     </tr>
     <tr>
-    <td><a name="u57">0.2</a></td><td>1</td><td>0.182</td><td>0.182</td><td>0.182</td><td>0.182</td><td>0</td>
-    <td>/ufo-sightings/report</td>
+    <td><a name="u63">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/visor.jpg</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u59">0.2</a></td><td>1</td><td>0.157</td><td>0.157</td><td>0.157</td><td>0.157</td><td>0</td>
-    <td>/space-travelers/famous/spock.jpg</td>
+    <td><a name="u52">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/lunar-cycles.html</td>
     </tr>
     <tr>
-    <td><a name="u43">0.2</a></td><td>1</td><td>0.157</td><td>0.157</td><td>0.157</td><td>0.157</td><td>0</td>
-    <td>/login</td>
+    <td><a name="u40">0.0</a></td><td>1</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0</td>
+    <td>/space-travel/plans/cryostasis.txt</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u61">0.1</a></td><td>1</td><td>0.138</td><td>0.138</td><td>0.138</td><td>0.138</td><td>0</td>
-    <td>/space-travel/ships/soyuz.html</td>
+    <td><a name="u47">0.0</a></td><td>1</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0</td>
+    <td>/space-travel/plans/space-suit.jpg</td>
     </tr>
     <tr>
     <td><a name="u42">&nbsp;</a></td><td>0</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>1</td>
@@ -263,19 +263,19 @@ The full report shows the request activity per minute.
               minute   req input  wait   app output
     ================ ===== ===== ===== ===== ======
     2009-07-30 15:47     1 I=  0 W=  0 A=  1 O=   0 N=   1       0.64       0.64
-    60.4106 /space-travel/plans/supplies.txt
-    2009-07-30 15:48     2 I=  0 W=  1 A=  1 O=   0 N=   3      20.43      20.35
+    60.004106 /space-travel/plans/supplies.txt
+    2009-07-30 15:48     2 I=  0 W=  1 A=  1 O=   0 N=   3      20.00      20.00
     60.791825 /constellations/andromeda.html
-    2009-07-30 15:49     0 I=  0 W=  0 A=  0 O=   0 N=   4      31.81      15.85
-    2009-07-30 15:50     2 I=  0 W=  0 A=  2 O=   0 N=   2       0.34       0.17
+    2009-07-30 15:49     0 I=  0 W=  0 A=  0 O=   0 N=   4      31.69      15.67
+    2009-07-30 15:50     2 I=  0 W=  0 A=  2 O=   0 N=   2       0.34       0.10
     60.62335 /submit-photo
     60.209388 /favicon.png
-    2009-07-30 15:51     3 I=  0 W=  1 A=  1 O=   1 N=   5      12.31      12.25
+    2009-07-30 15:51     3 I=  0 W=  1 A=  1 O=   1 N=   5      12.08      12.07
     121.301024 /submit-photo
-    2009-07-30 15:52     3 I=  0 W=  1 A=  2 O=   0 N=   8      20.65       2.52
+    2009-07-30 15:52     3 I=  0 W=  1 A=  2 O=   0 N=   8      20.45       2.29
     200.494494 /submit-photo
-    68.9801 /stars/alpha-centauri.html
-    2009-07-30 15:53     3 I=  0 W=  2 A=  1 O=   0 N=  11      14.53       6.53
+    68.09801 /stars/alpha-centauri.html
+    2009-07-30 15:53     3 I=  0 W=  2 A=  1 O=   0 N=  11      14.39       6.39
     270.622261 /submit-photo
     Left over:
     271.214443 /submit-photo
@@ -286,34 +286,34 @@ The full report shows the request activity per minute.
     ========= ===== ====== ====== ====== ====== =====
          62.4     1  62.42  62.42  62.42  62.42     0 /constellations/andromeda.html
          61.5     1  61.50  61.50  61.50  61.50     0 /stars/alpha-centauri.html
-         60.7     2   0.34  30.34  30.34  60.34     0 /space-travel/plans/supplies.txt
          60.3     2   0.13  30.13  30.13  60.13     0 /favicon.png
+         60.0     2   0.00  30.00  30.00  60.00     0 /space-travel/plans/supplies.txt
           9.7     1   9.69   9.69   9.69   9.69     0 /planets/saturn.html
           8.3     1   8.30   8.30   8.30   8.30     0 /moons/io.html
           7.3     1   7.34   7.34   7.34   7.34     0 /planets/jupiter.html
-          1.0     3   0.31   0.35   0.35   0.38     0 /space-travel/plans/signals.html
           0.9     1   0.88   0.88   0.88   0.88     0 /stories/aliens-posing-as-humans.html
-          0.8     2   0.35   0.39   0.39   0.42     0 /space-travel/plans/launchpad.html
-          0.7     1   0.36   0.36   0.36   0.36     1 /space-travel/plans/orbit.html
-          0.7     2   0.34   0.36   0.36   0.38     0 /space-travel/plans/space-logs.txt
-          0.7     2   0.35   0.35   0.35   0.35     0 /space-travel/plans/moon-base.jpg
           0.6     1   0.64   0.64   0.64   0.64     0 /columns/t-jansen
-          0.5     3   0.15   0.16   0.16   0.18     0 /space-travelers/famous/kirk.jpg
-          0.4     1   0.40   0.40   0.40   0.40     0 /space-travel/plans/moon-buggy.jpg
-          0.4     1   0.38   0.38   0.38   0.38     0 /space-travel/plans/space-diary.txt
           0.4     2   0.18   0.19   0.19   0.19     0 /faqs/how-to-recognize-lazer-fire.html
-          0.4     1   0.35   0.35   0.35   0.35     0 /js/photo.js
-          0.4     1   0.35   0.35   0.35   0.35     0 /space-travel/plans/visor.jpg
-          0.4     1   0.35   0.35   0.35   0.35     0 /space-travel/plans/lunar-cycles.html
           0.4     1   0.35   0.35   0.35   0.35     0 /faqs/how-to-charge-lazers.html
-          0.3     1   0.33   0.33   0.33   0.33     0 /space-travel/plans/cryostasis.txt
-          0.3     1   0.32   0.32   0.32   0.32     0 /space-travel/plans/space-suit.jpg
           0.3     1   0.32   0.32   0.32   0.32     0 /space-travel/ships/tardis.html
           0.3     1   0.25   0.25   0.25   0.25     0 /approve-photo
           0.2     1   0.18   0.18   0.18   0.18     0 /ufo-sightings/report
-          0.2     1   0.16   0.16   0.16   0.16     0 /space-travelers/famous/spock.jpg
-          0.2     1   0.16   0.16   0.16   0.16     0 /login
           0.1     1   0.14   0.14   0.14   0.14     0 /space-travel/ships/soyuz.html
+          0.0     3   0.02   0.02   0.02   0.02     0 /space-travelers/famous/kirk.jpg
+          0.0     1   0.02   0.02   0.02   0.02     0 /space-travelers/famous/spock.jpg
+          0.0     1   0.02   0.02   0.02   0.02     0 /login
+          0.0     3   0.00   0.00   0.00   0.00     0 /space-travel/plans/signals.html
+          0.0     2   0.00   0.00   0.00   0.00     0 /space-travel/plans/launchpad.html
+          0.0     1   0.00   0.00   0.00   0.00     1 /space-travel/plans/orbit.html
+          0.0     2   0.00   0.00   0.00   0.00     0 /space-travel/plans/space-logs.txt
+          0.0     2   0.00   0.00   0.00   0.00     0 /space-travel/plans/moon-base.jpg
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/moon-buggy.jpg
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/space-diary.txt
+          0.0     1   0.00   0.00   0.00   0.00     0 /js/photo.js
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/visor.jpg
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/lunar-cycles.html
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/cryostasis.txt
+          0.0     1   0.00   0.00   0.00   0.00     0 /space-travel/plans/space-suit.jpg
                   0                                 1 /submit-photo
 
 Again, this report is also available in HTML form.
@@ -358,7 +358,7 @@ Again, this report is also available in HTML form.
     </tr>
     <tr>
     <td>2009-07-30 15:48</td><td>2</td><td>0</td><td>1</td><td><font size="+2"><strong>1</strong></font></td><td>0</td>
-    <td>3</td><td>     20.43</td><td>     20.35</td>
+    <td>3</td><td>     20.00</td><td>     20.00</td>
     </tr>
     </table>
     <table border="1">
@@ -381,11 +381,11 @@ Again, this report is also available in HTML form.
     </tr>
     <tr style="background: lightgrey">
     <td>2009-07-30 15:49</td><td>0</td><td>0</td><td>0</td><td><font size="+2"><strong>0</strong></font></td><td>0</td>
-    <td>4</td><td>     31.81</td><td>     15.85</td>
+    <td>4</td><td>     31.69</td><td>     15.67</td>
     </tr>
     <tr>
     <td>2009-07-30 15:50</td><td>2</td><td>0</td><td>0</td><td><font size="+2"><strong>2</strong></font></td><td>0</td>
-    <td>2</td><td>      0.34</td><td>      0.17</td>
+    <td>2</td><td>      0.34</td><td>      0.10</td>
     </tr>
     </table>
     <table border="1">
@@ -411,7 +411,7 @@ Again, this report is also available in HTML form.
     </tr>
     <tr style="background: lightgrey">
     <td>2009-07-30 15:51</td><td>3</td><td>0</td><td>1</td><td><font size="+2"><strong>1</strong></font></td><td>1</td>
-    <td>5</td><td>     12.31</td><td>     12.25</td>
+    <td>5</td><td>     12.08</td><td>     12.07</td>
     </tr>
     </table>
     <table border="1">
@@ -434,7 +434,7 @@ Again, this report is also available in HTML form.
     </tr>
     <tr>
     <td>2009-07-30 15:52</td><td>3</td><td>0</td><td>1</td><td><font size="+2"><strong>2</strong></font></td><td>0</td>
-    <td>8</td><td>     20.65</td><td>      2.52</td>
+    <td>8</td><td>     20.45</td><td>      2.29</td>
     </tr>
     </table>
     <table border="1">
@@ -460,7 +460,7 @@ Again, this report is also available in HTML form.
     </tr>
     <tr style="background: lightgrey">
     <td>2009-07-30 15:53</td><td>3</td><td>0</td><td>2</td><td><font size="+2"><strong>1</strong></font></td><td>0</td>
-    <td>11</td><td>     14.53</td><td>      6.53</td>
+    <td>11</td><td>     14.39</td><td>      6.39</td>
     </tr>
     </table>
     <table border="1">
@@ -516,13 +516,13 @@ Again, this report is also available in HTML form.
     <td>/stars/alpha-centauri.html</td>
     </tr>
     <tr>
-    <td><a name="u96">60.7</a></td><td>2</td><td>0.337</td><td>30.340</td><td>30.340</td><td>60.343</td><td>0</td>
-    <td>/space-travel/plans/supplies.txt</td>
-    </tr>
-    <tr style="background: lightgrey;">
     <td><a name="u106">60.3</a></td><td>2</td><td>0.133</td><td>30.134</td><td>30.134</td><td>60.134</td><td>0</td>
     <td>/favicon.png</td>
     </tr>
+    <tr style="background: lightgrey;">
+    <td><a name="u96">60.0</a></td><td>2</td><td>0.003</td><td>30.003</td><td>30.003</td><td>60.003</td><td>0</td>
+    <td>/space-travel/plans/supplies.txt</td>
+    </tr>
     <tr>
     <td><a name="u110">9.7</a></td><td>1</td><td>9.694</td><td>9.694</td><td>9.694</td><td>9.694</td><td>0</td>
     <td>/planets/saturn.html</td>
@@ -536,96 +536,96 @@ Again, this report is also available in HTML form.
     <td>/planets/jupiter.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u118">1.0</a></td><td>3</td><td>0.309</td><td>0.353</td><td>0.346</td><td>0.378</td><td>0</td>
-    <td>/space-travel/plans/signals.html</td>
-    </tr>
-    <tr>
     <td><a name="u122">0.9</a></td><td>1</td><td>0.880</td><td>0.880</td><td>0.880</td><td>0.880</td><td>0</td>
     <td>/stories/aliens-posing-as-humans.html</td>
     </tr>
+    <tr>
+    <td><a name="u95">0.6</a></td><td>1</td><td>0.638</td><td>0.638</td><td>0.638</td><td>0.638</td><td>0</td>
+    <td>/columns/t-jansen</td>
+    </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u98">0.8</a></td><td>2</td><td>0.352</td><td>0.388</td><td>0.388</td><td>0.423</td><td>0</td>
-    <td>/space-travel/plans/launchpad.html</td>
+    <td><a name="u103">0.4</a></td><td>2</td><td>0.184</td><td>0.187</td><td>0.187</td><td>0.190</td><td>0</td>
+    <td>/faqs/how-to-recognize-lazer-fire.html</td>
     </tr>
     <tr>
-    <td><a name="u124">0.7</a></td><td>1</td><td>0.364</td><td>0.364</td><td>0.364</td><td>0.364</td><td>1</td>
-    <td>/space-travel/plans/orbit.html</td>
+    <td><a name="u116">0.4</a></td><td>1</td><td>0.351</td><td>0.351</td><td>0.351</td><td>0.351</td><td>0</td>
+    <td>/faqs/how-to-charge-lazers.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u100">0.7</a></td><td>2</td><td>0.339</td><td>0.361</td><td>0.361</td><td>0.384</td><td>0</td>
-    <td>/space-travel/plans/space-logs.txt</td>
+    <td><a name="u112">0.3</a></td><td>1</td><td>0.320</td><td>0.320</td><td>0.320</td><td>0.320</td><td>0</td>
+    <td>/space-travel/ships/tardis.html</td>
     </tr>
     <tr>
-    <td><a name="u97">0.7</a></td><td>2</td><td>0.347</td><td>0.349</td><td>0.349</td><td>0.351</td><td>0</td>
-    <td>/space-travel/plans/moon-base.jpg</td>
+    <td><a name="u101">0.3</a></td><td>1</td><td>0.253</td><td>0.253</td><td>0.253</td><td>0.253</td><td>0</td>
+    <td>/approve-photo</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u95">0.6</a></td><td>1</td><td>0.638</td><td>0.638</td><td>0.638</td><td>0.638</td><td>0</td>
-    <td>/columns/t-jansen</td>
+    <td><a name="u119">0.2</a></td><td>1</td><td>0.182</td><td>0.182</td><td>0.182</td><td>0.182</td><td>0</td>
+    <td>/ufo-sightings/report</td>
     </tr>
     <tr>
-    <td><a name="u107">0.5</a></td><td>3</td><td>0.153</td><td>0.161</td><td>0.164</td><td>0.177</td><td>0</td>
-    <td>/space-travelers/famous/kirk.jpg</td>
+    <td><a name="u123">0.1</a></td><td>1</td><td>0.138</td><td>0.138</td><td>0.138</td><td>0.138</td><td>0</td>
+    <td>/space-travel/ships/soyuz.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u108">0.4</a></td><td>1</td><td>0.397</td><td>0.397</td><td>0.397</td><td>0.397</td><td>0</td>
-    <td>/space-travel/plans/moon-buggy.jpg</td>
+    <td><a name="u107">0.0</a></td><td>3</td><td>0.015</td><td>0.016</td><td>0.016</td><td>0.018</td><td>0</td>
+    <td>/space-travelers/famous/kirk.jpg</td>
     </tr>
     <tr>
-    <td><a name="u111">0.4</a></td><td>1</td><td>0.379</td><td>0.379</td><td>0.379</td><td>0.379</td><td>0</td>
-    <td>/space-travel/plans/space-diary.txt</td>
+    <td><a name="u121">0.0</a></td><td>1</td><td>0.016</td><td>0.016</td><td>0.016</td><td>0.016</td><td>0</td>
+    <td>/space-travelers/famous/spock.jpg</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u103">0.4</a></td><td>2</td><td>0.184</td><td>0.187</td><td>0.187</td><td>0.190</td><td>0</td>
-    <td>/faqs/how-to-recognize-lazer-fire.html</td>
+    <td><a name="u105">0.0</a></td><td>1</td><td>0.016</td><td>0.016</td><td>0.016</td><td>0.016</td><td>0</td>
+    <td>/login</td>
     </tr>
     <tr>
-    <td><a name="u120">0.4</a></td><td>1</td><td>0.354</td><td>0.354</td><td>0.354</td><td>0.354</td><td>0</td>
-    <td>/js/photo.js</td>
+    <td><a name="u118">0.0</a></td><td>3</td><td>0.003</td><td>0.004</td><td>0.003</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/signals.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u125">0.4</a></td><td>1</td><td>0.354</td><td>0.354</td><td>0.354</td><td>0.354</td><td>0</td>
-    <td>/space-travel/plans/visor.jpg</td>
+    <td><a name="u98">0.0</a></td><td>2</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/launchpad.html</td>
     </tr>
     <tr>
-    <td><a name="u114">0.4</a></td><td>1</td><td>0.353</td><td>0.353</td><td>0.353</td><td>0.353</td><td>0</td>
-    <td>/space-travel/plans/lunar-cycles.html</td>
+    <td><a name="u124">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>1</td>
+    <td>/space-travel/plans/orbit.html</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u116">0.4</a></td><td>1</td><td>0.351</td><td>0.351</td><td>0.351</td><td>0.351</td><td>0</td>
-    <td>/faqs/how-to-charge-lazers.html</td>
+    <td><a name="u100">0.0</a></td><td>2</td><td>0.003</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/space-logs.txt</td>
     </tr>
     <tr>
-    <td><a name="u102">0.3</a></td><td>1</td><td>0.333</td><td>0.333</td><td>0.333</td><td>0.333</td><td>0</td>
-    <td>/space-travel/plans/cryostasis.txt</td>
+    <td><a name="u97">0.0</a></td><td>2</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/moon-base.jpg</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u109">0.3</a></td><td>1</td><td>0.321</td><td>0.321</td><td>0.321</td><td>0.321</td><td>0</td>
-    <td>/space-travel/plans/space-suit.jpg</td>
+    <td><a name="u108">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/moon-buggy.jpg</td>
     </tr>
     <tr>
-    <td><a name="u112">0.3</a></td><td>1</td><td>0.320</td><td>0.320</td><td>0.320</td><td>0.320</td><td>0</td>
-    <td>/space-travel/ships/tardis.html</td>
+    <td><a name="u111">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/space-diary.txt</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u101">0.3</a></td><td>1</td><td>0.253</td><td>0.253</td><td>0.253</td><td>0.253</td><td>0</td>
-    <td>/approve-photo</td>
+    <td><a name="u120">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/js/photo.js</td>
     </tr>
     <tr>
-    <td><a name="u119">0.2</a></td><td>1</td><td>0.182</td><td>0.182</td><td>0.182</td><td>0.182</td><td>0</td>
-    <td>/ufo-sightings/report</td>
+    <td><a name="u125">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/visor.jpg</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u121">0.2</a></td><td>1</td><td>0.157</td><td>0.157</td><td>0.157</td><td>0.157</td><td>0</td>
-    <td>/space-travelers/famous/spock.jpg</td>
+    <td><a name="u114">0.0</a></td><td>1</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0.004</td><td>0</td>
+    <td>/space-travel/plans/lunar-cycles.html</td>
     </tr>
     <tr>
-    <td><a name="u105">0.2</a></td><td>1</td><td>0.157</td><td>0.157</td><td>0.157</td><td>0.157</td><td>0</td>
-    <td>/login</td>
+    <td><a name="u102">0.0</a></td><td>1</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0</td>
+    <td>/space-travel/plans/cryostasis.txt</td>
     </tr>
     <tr style="background: lightgrey;">
-    <td><a name="u123">0.1</a></td><td>1</td><td>0.138</td><td>0.138</td><td>0.138</td><td>0.138</td><td>0</td>
-    <td>/space-travel/ships/soyuz.html</td>
+    <td><a name="u109">0.0</a></td><td>1</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0.003</td><td>0</td>
+    <td>/space-travel/plans/space-suit.jpg</td>
     </tr>
     <tr>
     <td><a name="u104">&nbsp;</a></td><td>0</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>1</td>
@@ -641,12 +641,12 @@ Report by given time interval.
     <BLANKLINE>
               minute   req input  wait   app output
     ================ ===== ===== ===== ===== ======
-    2009-07-30 15:48     2 I=  0 W=  1 A=  1 O=   0 N=   2       0.43       0.35
-    2009-07-30 15:49     0 I=  0 W=  0 A=  0 O=   0 N=   4      31.81      15.85
-    2009-07-30 15:50     2 I=  0 W=  0 A=  2 O=   0 N=   2       0.34       0.17
-    2009-07-30 15:51     3 I=  0 W=  1 A=  1 O=   1 N=   5      12.31      12.25
+    2009-07-30 15:48     2 I=  0 W=  1 A=  1 O=   0 N=   2       0.00       0.00
+    2009-07-30 15:49     0 I=  0 W=  0 A=  0 O=   0 N=   4      31.69      15.67
+    2009-07-30 15:50     2 I=  0 W=  0 A=  2 O=   0 N=   2       0.34       0.10
+    2009-07-30 15:51     3 I=  0 W=  1 A=  1 O=   1 N=   5      12.08      12.07
     Left over:
-    140.94385 /submit-photo
+    140.094385 /submit-photo
     <BLANKLINE>
     <BLANKLINE>
     URL statistics:
@@ -656,20 +656,20 @@ Report by given time interval.
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