[pypy-commit] pypy gc-disable: add an option to control how the gc works inside gcbench: you can choose whether to use gc.disable() and/or gc.collect(1)

[antocuni]

Author: Antonio Cuni <anto.c...@gmail.com>
Branch: gc-disable
Changeset: r94681:a75d8c7f141f
Date: 2018-05-23 14:50 +0200
http://bitbucket.org/pypy/pypy/changeset/a75d8c7f141f/

Log:    add an option to control how the gc works inside gcbench: you can
        choose whether to use gc.disable() and/or gc.collect(1)

diff --git a/rpython/translator/goal/gcbench.py 
b/rpython/translator/goal/gcbench.py
--- a/rpython/translator/goal/gcbench.py
+++ b/rpython/translator/goal/gcbench.py
@@ -44,8 +44,9 @@
 #               - Results are sensitive to locking cost, but we dont
 #                 check for proper locking
 import time
+import gc
 
-USAGE = """gcbench [num_repetitions] [--depths=N,N,N..] [--threads=N]"""
+USAGE = """gcbench [num_repetitions] [--depths=N,N,N..] [--threads=N] 
[--gc=off|--gc=manual]"""
 ENABLE_THREADS = True
 
 
@@ -173,6 +174,7 @@
     depths = DEFAULT_DEPTHS
     threads = 0
     repeatcount = 1
+    gc_policy = 'on'
     for arg in argv[1:]:
         if arg.startswith('--threads='):
             arg = arg[len('--threads='):]
@@ -189,13 +191,22 @@
                 depths = [int(s) for s in arg]
             except ValueError:
                 return argerror()
+        elif arg.startswith('--gc=off'):
+            gc_policy = 'off'
+        elif arg.startswith('--gc=manual'):
+            gc_policy = 'manual'
         else:
             try:
                 repeatcount = int(arg)
             except ValueError:
                 return argerror()
+    #
+    if gc_policy == 'off' or gc_policy == 'manual':
+        gc.disable()
     for i in range(repeatcount):
         main(depths, threads)
+        if gc_policy == 'manual':
+            gc.collect(1)
     return 0
 
 
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