[SciPy-dev] huge speed regression in loadmat from 0.6.0 to 0.7.0

Matthew Brett matthew.brett@gmail....
Wed Feb 18 01:30:01 CST 2009


> So now the GzipInputStream overhead is only about 20-25%. Still seems
> a bit higher than it should be, but certainly usable, and worth it for
> the memory win.
> BTW, the name GzipInputStream is very confusing for something that
> reads raw deflate format and not, say, gzip format :-).

Thanks to all in this thread.  I've committed a version of this patch
with the final suggestions here, and renamed the class to

I've also put in a two shot version of the class that's a bit better
matched to the matlab io situation, where we want to be able to do one
small read for the variable name, then a long read for the rest of the

Chris Burns kindly put some benchmarks in place.

Could you test current SVN and let me know how speed is for you?


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