Author: Armin Rigo <ar...@tunes.org>
Branch: bitstring
Changeset: r83959:e341fe8db539
Date: 2016-04-27 08:49 +0200
http://bitbucket.org/pypy/pypy/changeset/e341fe8db539/
Log: Dump logs about the bitstring compression
diff --git a/rpython/jit/codewriter/effectinfo.py
b/rpython/jit/codewriter/effectinfo.py
--- a/rpython/jit/codewriter/effectinfo.py
+++ b/rpython/jit/codewriter/effectinfo.py
@@ -445,6 +445,9 @@
# across multiple Descrs if they always give the same answer (in
# PyPy, it reduces the length of the bitstrings from 4000+ to
# 373).
+ from rpython.jit.codewriter.policy import log
+
+ log("compute_bitstrings:")
effectinfos = []
descrs = {'fields': set(), 'arrays': set(), 'interiorfields': set()}
for descr in all_descrs:
@@ -465,7 +468,11 @@
descrs[key].update(getattr(ei, '_write_descrs_' + key))
else:
descr.ei_index = sys.maxint
+ log(" %d effectinfos:" % (len(effectinfos),))
+ for key in sorted(descrs):
+ log(" %d descrs for %s" % (len(descrs[key]), key))
+ seen = set()
for key in descrs:
all_sets = []
for descr in descrs[key]:
@@ -503,3 +510,11 @@
bitstrw = bitstring.make_bitstring(bitstrw)
setattr(ei, 'bitstring_readonly_descrs_' + key, bitstrr)
setattr(ei, 'bitstring_write_descrs_' + key, bitstrw)
+ seen.add(bitstrr)
+ seen.add(bitstrw)
+
+ if seen:
+ mean_length = float(sum(len(x) for x in seen)) / len(seen)
+ max_length = max(len(x) for x in seen)
+ log("-> %d bitstrings, mean length %.1f, max length %d" % (
+ len(seen), mean_length, max_length))
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