[issue20962] Rather modest chunk size in gzip.GzipFile

[William Tisäter]

William Tisäter added the comment:

I played around with different file and chunk sizes using attached benchmark script.

After several test runs I think 1024 * 16 would be the biggest win without losing too many μs on small seeks. You can find my benchmark output here: https://gist.github.com/tiwilliam/11273483

My test data was generated with following commands:

dd if=/dev/random of=10K bs=1024 count=10
dd if=/dev/random of=1M bs=1024 count=1000
dd if=/dev/random of=5M bs=1024 count=5000
dd if=/dev/random of=100M bs=1024 count=100000
dd if=/dev/random of=1000M bs=1024 count=1000000
gzip 10K 1M 5M 100M 1000M

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nosy: +tiwilliam
Added file: http://bugs.python.org/file35029/benchmark_20962.py

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<http://bugs.python.org/issue20962>
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