first commit

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 45 insertions, 0 deletions

diff --git a/plot b/plot
new file mode 100755
index 0000000..97bf34c
--- /dev/null
+++ b/plot
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+#!/usr/bin/env python3
+
+import sys, math
+import matplotlib.pyplot as plot
+
+#plot.xkcd()
+fig = plot.figure(figsize = (3 * 2, 4 * 2))
+data = sys.stdin.read().split('\n')
+
+graphs = {}
+points = set()
+values = set()
+
+for line in data:
+    if line == '':
+        continue
+    while '  ' in line:
+        line = line.replace('  ', ' ')
+    [label, point, time] = line.split(' ')
+    [_, point] = point.split('<<')
+    point = int(point)
+    time = float(time) / 10
+    if label not in graphs:
+        graphs[label] = {}
+    graphs[label][point] = time
+    points.add(point)
+    values.add(time)
+
+points = sorted(list(points))
+values = sorted(list(values))
+
+for label in sorted(graphs.keys()):
+    graph_values = list(map(lambda x : x[1], sorted(graphs[label].items(), key = lambda x : x[0])))
+    plot.plot(points, graph_values, label = label)
+
+plot.xticks(points, map(str, points))
+fig.suptitle('pipe(7) versus unix(7)')
+plot.ylabel('millisecond')
+plot.xlabel('log₂(n)')
+plot.grid(axis = 'x', linestyle = ' ')
+plot.legend(loc = 'upper left')
+plot.xlim((min(points), max(points)))
+plot.ylim((min(values) * 1.05, max(values) * 1.05))
+plot.grid(True)
+plot.savefig('graph.svg', transparent = False, format = 'svg')