Misc tools+microbenchmarks

microbenchmarks/oldstyle_class_ubench.py

@@ -43,3 +43,15 @@ for i in xrange(1000):
         # if not n:
             # break
     # sre_parse.parse(pattern, 0)
+
+class C:
+    pass
+
+c = C()
+c.a = 1
+def f(c):
+    n = 10000000
+    while n:
+        c.a
+f(c)
+

microbenchmarks/str_comparison_ubench.py

+def f():
+    i = 0
+    n = 10000000
+    s1 = ""
+    s2 = ""
+    while i < n:
+        i = i + 1
+        s1 < s2
+        s1 <= s2
+        s1 > s2
+        s1 >= s2
+        s1 == s2
+        s1 != s2
+f()
+

tools/check_stats.py

+import argparse
+import os
+import subprocess
+import sys
+import time
+
+if __name__ == "__main__":
+    cmd = ["./pyston_release", "-Ts", sys.argv[1]]
+
+    start = time.time()
+    p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+    out, err = p.communicate()
+    assert p.wait() == 0
+    elapsed = time.time() - start
+    open('tmp.txt', 'w').write(out)
+
+    # elapsed = 1.5
+    # out = open("tmp.txt").read()
+
+    stats = []
+    is_counter = False
+    for l in out.split('\n'):
+        if l.strip() == "Counters:":
+            is_counter = True
+            continue
+        if l.strip() == "(End of stats)":
+            is_counter = False
+            continue
+
+        if not is_counter:
+            continue
+
+        name, count = l.split(':')
+        count = int(count)
+        if name.startswith('us_timer'):
+            stats.append((name, 0.000001 * count))
+        # if name.startswith('slowpath'):
+            # stats.append((name, 0.0000001 * count))
+
+    stats.sort(key=lambda (name,s): s, reverse=True)
+    print "Most interesting stats:"
+    for (name, s) in stats[:10]:
+        print "% 40s %.3fs (%.0f%%)" % (name, s, 100.0 * s / elapsed)
+    print "%.1fs total time" % elapsed