add a script to automatically make a markdown table from the benchmarks

benches/marshal_bench.rs

@@ -379,7 +379,7 @@ fn criterion_benchmark(c: &mut Criterion) {
             make_dbus_bytestream_message(&parts, false);
         })
     });
-    c.bench_function("marshal_dbus_message_parser", |b| {
+    c.bench_function("marshal_dbus_msg_parser", |b| {
         b.iter(|| {
             make_dbus_message_parser_message(&parts, false);
         })

tools/make_table.py

@@ -0,0 +1,57 @@
+#! /bin/python3
+
+import os
+
+stream = os.popen('bash -c "cargo bench | grep time"')
+#stream = os.popen('bash -c "cargo bench rustbus | grep time"')
+output = stream.read()
+
+table_lines = []
+results = {}
+benches = []
+
+def filter_empty(var):
+    return len(var) != 0
+
+lines = output.split("\n")
+for line in lines:
+    if len(line) == 0:
+        continue
+
+    words = line.split(" ")
+    words = list(filter(filter_empty, words))
+
+    name_split = words[0].split("_")
+    benchname = name_split[0]
+    libname = "_".join(name_split[1:])
+    timings = " ".join(words[2:])
+
+    if not benchname in benches:
+        benches.append(benchname)
+
+    if not libname in results:
+        results[libname] = {}
+    results[libname][benchname] = timings
+
+for libname in results:
+    print(libname)
+    line = "|" + libname + "|"
+    for bench in benches:
+        libbenches = results[libname]
+        if bench in libbenches:
+            line += libbenches[bench]
+        line += "|"
+
+    table_lines.append(line)
+
+header = "|Library|"
+for bench in benches:
+    header += bench + "|"
+print(header)
+header = "|-|"
+for bench in benches:
+    header += "-|"
+print(header)
+
+for line in table_lines:
+    print(line)