--- a/templates/results.html	Thu May 28 20:26:57 2015 +0800
+++ b/templates/results.html	Thu May 28 20:41:24 2015 +0800
@@ -41,11 +41,23 @@
         hover things for a tooltip; red means slow, green means fast; first
         color and time means without .hg/cache, second means with .hg/cache.
       </span>
-      {% if local %}
-        local colors (<a href="{{ setlocal(None) }}">switch to global colors</a>)
-      {% else %}
-        global colors (<a href="{{ setlocal(1) }}">switch to local colors</a>)
-      {% end %}
+      <div>
+        {% if local %}
+          local colors (<a href="{{ setlocal(None) }}">switch to global colors</a>)
+        {% else %}
+          global colors (<a href="{{ setlocal(1) }}">switch to local colors</a>)
+        {% end %}
+      </div>
+      <div>
+        timings:
+        {% for mark, desc in marks.items() %}
+          -<a href="{{ setmarks(remove=mark) }}" title="{{ desc }}">{{ mark }}</a>
+        {% end %}
+        {% for mark, desc in moremarks.items() %}
+          +<a href="{{ setmarks(add=mark) }}" title="{{ desc }}">{{ mark }}</a>
+        {% end %}
+        *<a href="{{ setmarks() }}">all</a>
+      </div>
     </header>
     <table>
       <thead>

--- a/viewer.py	Thu May 28 20:26:57 2015 +0800
+++ b/viewer.py	Thu May 28 20:41:24 2015 +0800
@@ -136,7 +136,7 @@
 
     def urlencode(self, **kwargs):
         def joinparams(params):
-            return ','.join(quote_plus(i, '()') for i in params)
+            return ','.join(quote_plus(i, '(),') for i in params)
         return '&'.join(quote_plus(k) + '=' + joinparams(v) for k, v in kwargs.items())
 
     def setlocal(self, value=None):
@@ -167,18 +167,47 @@
         else:
             return self.request.path
 
+    def setmarks(self, marks):
+        def fn(value=None, add=None, remove=None):
+            kwargs = self.request.arguments.copy()
+            if add is not None:
+                kwargs['marks'] = kwargs['marks'] + [add]
+            elif remove is not None:
+                kwargs['marks'] = [mark for mark in marks if mark != remove]
+            elif value is not None:
+                kwargs['marks'] = value
+            else:
+                try:
+                    kwargs.pop('marks')
+                except KeyError:
+                    pass
+            if kwargs:
+                return '?' + self.urlencode(**kwargs)
+            else:
+                return self.request.path
+        return fn
+
     def results_html(self):
         changesets = self.getchangesets()
-        marks = MARKS
+        showmarks = self.get_argument('marks', '')
+        if showmarks:
+            showmarks = showmarks.split(',')
+            marks = OrderedDict((mark, MARKS[mark]) for mark in showmarks if mark in MARKS)
+            moremarks = OrderedDict((mark, desc) for mark, desc in MARKS.items() if mark not in showmarks)
+        else:
+            marks = MARKS
+            moremarks = {}
         local = self.get_argument('local', False)
         results = self.getresults(changesets, marks=marks, local=local)
         context = {
             'changesets': changesets,
             'marks': marks,
+            'moremarks': moremarks,
             'results': results,
             'local': local,
             'setlocal': self.setlocal,
-            'setrev': self.setrev
+            'setrev': self.setrev,
+            'setmarks': self.setmarks(marks)
         }
         self.render('results.html', **context)