Author: Maciej Fijalkowski <[email protected]>
Branch:
Changeset: r51182:3c58c0bd8803
Date: 2012-01-10 00:28 +0200
http://bitbucket.org/pypy/pypy/changeset/3c58c0bd8803/
Log: document JIT parameters
diff --git a/pypy/rlib/jit.py b/pypy/rlib/jit.py
--- a/pypy/rlib/jit.py
+++ b/pypy/rlib/jit.py
@@ -386,6 +386,18 @@
class JitHintError(Exception):
"""Inconsistency in the JIT hints."""
+PARAMETER_DOCS = {
+ 'threshold': 'number of times a loop has to run for it to become hot',
+ 'function_threshold': 'number of times a function must run for it to
become traced from start',
+ 'trace_eagerness': 'number of times a guard has to fail before we start
compiling a bridge',
+ 'trace_limit': 'number of recorded operations before we abort tracing with
ABORT_TRACE_TOO_LONG',
+ 'inlining': 'inline python functions or not (1/0)',
+ 'loop_longevity': 'a parameter controlling how long loops will be kept
before being freed, an estimate',
+ 'retrace_limit': 'how many times we can try retracing before giving up',
+ 'max_retrace_guards': 'number of extra guards a retrace can cause',
+ 'enable_opts': 'optimizations to enabled or all, INTERNAL USE ONLY'
+ }
+
PARAMETERS = {'threshold': 1039, # just above 1024, prime
'function_threshold': 1619, # slightly more than one above, also
prime
'trace_eagerness': 200,
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