1 files changed, 138 insertions, 0 deletions

diff --git a/plot.py b/plot.py
new file mode 100755
index 0000000..c0218e9
--- /dev/null
+++ b/plot.py
@@ -0,0 +1,138 @@
+#!/usr/bin/env python
+import defapp
+from os.path  import splitext, basename
+from optparse import make_option as o
+from tempfile import NamedTemporaryFile as Tmp
+
+from gnuplot  import gnuplot, FORMATS
+
+options = [
+    o('-f', '--format', action='store', dest='format', type='choice',
+      choices=FORMATS, help='output format'),
+    ]
+
+defaults = {
+    'format' : 'show',
+    'xrange' : (0.5, 32.5),
+    'yrange' : (-0.05, 1.05),
+    'xticks' : (0, 2),
+    'yticks' : (0, 0.1),
+    'title'  : None,
+    'xlabel' : 'task set utilization cap (prior to inflation)',
+    'ylabel' : 'ratio of schedulable task sets',
+    }
+
+def decode(name):
+    params = {}
+    parts = name.split('_')
+    for p in parts:
+        kv = p.split('=')
+        k = kv[0]
+        v = kv[1] if len(kv) > 1 else None
+        params[k] = v
+    return params
+
+def get_data_tmpfile(datafile):
+    """Removes all comments form datafile, stores result in a temp file.
+    The temp file is returned."""
+    count = 0
+    f = open(datafile, 'r')
+    d = Tmp()
+    for line in f:
+        if len(line) > 1 and line[0] != '#':
+            d.write(line)
+            count += 1
+    f.close()
+    d.flush()
+    if count > 0:
+        return d
+    else:
+        del d # removes temp file
+        return None
+
+def scenario_heading(conf):
+    dist = 'unknown distribution'
+    if 'dist' in conf:
+        if conf['dist'] == 'uni':
+            dist = 'uniformly distributed'
+            if 'light' in conf:
+                dist = dist + ' in [0.001, 0.1]'
+            elif 'medium' in conf:
+                dist = dist + ' in [0.1, 0.4]'
+            elif 'heavy' in conf:
+                dist = dist + ' in [0.5, 0.9]'
+        elif conf['dist'] == 'bimo':
+            dist = 'bimodially distributed'
+            if 'light' in conf:
+                dist = dist + 'in [0.001, 0.5] (8/9) and [0.5, 0.9] (1/9)'
+            elif 'medium' in conf:
+                dist = dist + 'in [0.001, 0.5] (6/9) and [0.5, 0.9] (3/9)'
+            elif 'heavy' in conf:
+                dist = dist + 'in [0.001, 0.5] (4/9) and [0.5, 0.9] (5/9)'
+    return dist
+
+class SchedPlotter(defapp.App):
+    def __init__(self):
+        defapp.App.__init__(self, options, defaults, no_std_opts=True)
+
+    def plot(self, graphs, title, name, conf):
+        gnuplot(graphs, title=title,
+                xlabel=self.options.xlabel,
+                ylabel=self.options.ylabel + 
+                (' [soft]' if 'soft' in conf else ' [hard]'),
+                xrange=self.options.xrange,
+                yrange=self.options.yrange,
+                xticks=self.options.xticks,
+                yticks=self.options.yticks,
+                format=self.options.format,
+                fname=name)
+
+    def plot_spec(self, tmpfile, name, conf):
+        title = 'release overhead speculation: ' + scenario_heading(conf)
+        graphs = [
+            (tmpfile, 1, 2, 'G-EDF (100% release)'),
+            (tmpfile, 1, 3, 'G-EDF ( 75% release)'),
+            (tmpfile, 1, 4, 'G-EDF ( 50% release)'),
+            (tmpfile, 1, 5, 'G-EDF ( 25% release)'),
+            (tmpfile, 1, 6, 'G-EDF (  0% release)'),
+            (tmpfile, 1, 7, 'G-EDF (no overheads)'),
+            ]
+        self.plot(graphs, title, name, conf)
+
+    def plot_spec2(self, tmpfile, name, conf):
+        title = 'service processor speculation: ' + scenario_heading(conf)
+        graphs = [
+            (tmpfile, 1, 2, 'G-EDF ( 25% release, 100% rest)'),
+            (tmpfile, 1, 3, 'G-EDF (100% release,   0% rest)'),
+            (tmpfile, 1, 4, 'G-EDF (service cpu, 100% preempt)'),
+            (tmpfile, 1, 5, 'G-EDF (service cpu, 150% preempt)'),
+            ]
+        self.plot(graphs, title, name, conf)
+
+    def plot_file(self, datafile):
+        bname = basename(datafile)
+        name, ext = splitext(bname)
+        if ext != '.csv':
+            self.err("Warning: '%s' doesn't look like a CSV file."
+                     % bname)
+        conf    = decode(name)
+        tmpfile = get_data_tmpfile(datafile)
+        if tmpfile:
+            if 'spec' in conf:
+                self.plot_spec(tmpfile.name, name, conf)
+            elif 'spec2' in conf: 
+                self.plot_spec2(tmpfile.name, name, conf)
+            else:
+                self.err("Skipped '%s'; unkown experiment type."
+                         % bname)
+            del tmpfile # removes temp file
+        else:
+            self.err("Skipped '%s'; it dosn't appear to contain data."
+                     % bname)
+
+    def default(self, _):
+        for datafile in self.args:
+            self.plot_file(datafile)
+
+if __name__ == "__main__":
+    SchedPlotter().launch()