On 16/02/12 20:45, Antoine Pitrou wrote:
On Wed, 08 Feb 2012 19:18:14 +0000
Mark Shannon<m...@hotpy.org> wrote:
Proposed PEP for new dictionary implementation, PEP 410?
is attached.
So, I'm running a few benchmarks using Twisted's test suite
(see https://bitbucket.org/pitrou/t3k/wiki/Home).
At the end of `python -i bin/trial twisted.internet.test`:
-> vanilla 3.3: RSS = 94 MB
-> new dict: RSS = 91 MB
At the end of `python -i bin/trial twisted.python.test`:
-> vanilla 3.3: RSS = 31.5 MB
-> new dict: RSS = 30 MB
At the end of `python -i bin/trial twisted.conch.test`:
-> vanilla 3.3: RSS = 68 MB
-> new dict: RSS = 42 MB (!)
At the end of `python -i bin/trial twisted.trial.test`:
-> vanilla 3.3: RSS = 32 MB
-> new dict: RSS = 30 MB
At the end of `python -i bin/trial twisted.test`:
-> vanilla 3.3: RSS = 62 MB
-> new dict: RSS = 78 MB (!)
In theory, new-dict should never use more a few kbs more than vanilla.
That looks like a serious leak. I'll investigate as soon as I get a chance.
Which revision of new-dict are you using?
Cheers,
Mark.
Runtimes were mostly similar in these test runs.
Perspective broker benchmark (doc/core/benchmarks/tpclient.py and
doc/core/benchmarks/tpserver.py):
-> vanilla 3.3: 422 MB/sec
-> new dict: 402 MB/sec
Regards
Antoine.
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