Steve Newcomb added the comment: On 08/30/2016 12:46 PM, Raymond Hettinger wrote: > Raymond Hettinger added the comment: > > It would be helpful if you could run "hg bisect" with your set-up to isolate > the change that causes the problem. I don't think I understand you. There's no difference in the Python code we're using in both cases. The only differences, AFAIK, are in the Python interpreter and in the Linux distribution. I'm not qualified to analyze the differences in the latter items. > Alternatively, make a small set of regular expressions that demonstrate > the performance regression. It will be hard to do that, because the code is so complex, and because debugging in the multiprocessing context is so hairy. Still, it's the only approach I can think of, too. Sigh. I'm thinking about it.
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