[pypy-svn] r78876 - pypy/extradoc/planning
fijal at codespeak.net
fijal at codespeak.net
Mon Nov 8 16:17:24 CET 2010
Author: fijal
Date: Mon Nov 8 16:17:22 2010
New Revision: 78876
Modified:
pypy/extradoc/planning/jit.txt
Log:
generators, again
Modified: pypy/extradoc/planning/jit.txt
==============================================================================
--- pypy/extradoc/planning/jit.txt (original)
+++ pypy/extradoc/planning/jit.txt Mon Nov 8 16:17:22 2010
@@ -34,6 +34,13 @@
is a compile time constant (and call unrolled version of string formatting
loop in this case).
+- generators are still fairly inefficient. We get a lot of:
+ i = ptr_eq(frame, some_other_frame)
+ guard_value(i, 0)
+ every second instruction.
+
+ there is also manipulating of valuestackdepth and such.
+
OPTIMIZATIONS
-------------
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