[pypy-issue] Issue #1818: xml sax/BytesIO performance regression since 2.2.1 (pypy/pypy)

larstiq issues-reply at bitbucket.org
Tue Jul 15 21:10:43 CEST 2014

New issue 1818: xml sax/BytesIO performance regression since 2.2.1


On irc IvIePhisto mentioned a performance regression. To reproduce I downloaded
and ran

    from timeit import repeat
    print repeat("from xml_sax import create_testdoc; create_testdoc('title', 'content', 2**4, 'text')", number=100)

There are some numbers to tweak; with these settings I got on my linux32 laptop:

    pypy 2.2.1
    [1.6042330265045166, 0.6979169845581055, 0.8283989429473877]

    pypy 8a9c64ba35dc
    [27.671435832977295, 32.030592918395996, 36.68885684013367]

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