On 21/01/2010 06:54, Gregory P. Smith wrote:
+1
My biggest concern is memory usage but it sounds like addressing that
is already in your mind. I don't so much mind an additional up front
constant and per-line-of-code hit for instrumentation but leaks are
unacceptable. Any instrumentation data or jit caches should be
managed (and tunable at run time when possible and it makes sense).
I think having a run time flag (or environment variable for those who
like that) to disable the use of JIT at python3 execution time would
be a good idea.
Echoes my sentiments. The work done so far sounds like an awesome and
necessary foundation for the long term goal of speeding up Python. Given
the likely cost / benefit tradeoffs when unladen-swallow is merged, the
ability to switch off the JIT at runtime would seem essential.
In fact off by default to start with seems reasonable given that many
users (particularly Windows users) are likely to only have one version
of Python installed at a time (so side by side with-JIT and without-JIT
installs is not really acceptable as the standard solution). Messing
with environment variables is user-unfriendly on Windows. Users can use
site.py and / or environment variables for global switches.
All the best,
Michael Foord
-gps
disclaimer: I work for Google but not on unladen-swallow. My
motivation is to improve the future of CPython for the entire world in
the long term.
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
http://mail.python.org/mailman/options/python-dev/fuzzyman%40voidspace.org.uk
--
http://www.ironpythoninaction.com/
http://www.voidspace.org.uk/blog
READ CAREFULLY. By accepting and reading this email you agree, on behalf of your
employer, to release me from all obligations and waivers arising from any and all
NON-NEGOTIATED agreements, licenses, terms-of-service, shrinkwrap, clickwrap, browsewrap,
confidentiality, non-disclosure, non-compete and acceptable use policies ("BOGUS
AGREEMENTS") that I have entered into with your employer, its partners, licensors,
agents and assigns, in perpetuity, without prejudice to my ongoing rights and privileges.
You further represent that you have the authority to release me from any BOGUS AGREEMENTS
on behalf of your employer.
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
