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perf: use default memory management within libxml2 #2734

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perf: use default memory management within libxml2 #2734

wants to merge 1 commit into from

Commits on Dec 20, 2022

  1. perf: use default memory management within libxml2 

    instead of ruby's memory management functions, which has been the case
since 2009.

HTML4 parsing is 14-19% faster:

    alloc html4 parse 656:    22371.3 i/s
    BASE_ html4 parse 656:    19589.4 i/s - 1.14x  (± 0.03) slower

    alloc html4 parse 70095:      461.4 i/s
    BASE_ html4 parse 70095:      385.5 i/s - 1.19x  (± 0.11) slower

    alloc html4 parse 1929522:       43.7 i/s
    BASE_ html4 parse 1929522:       37.2 i/s - 1.18x  (± 0.05) slower

HTML5 parsing is 5-8% faster:

    alloc html5 parse 656:    17909.1 i/s
    BASE_ html5 parse 656:    16597.7 i/s - 1.08x  (± 0.04) slower

    alloc html5 parse 70095:      277.3 i/s
    BASE_ html5 parse 70095:      263.4 i/s - same-ish: difference falls within error

    alloc html5 parse 1929522:       16.6 i/s
    BASE_ html5 parse 1929522:       15.8 i/s - 1.05x  (± 0.03) slower

HTML4 serialization is 10-14% faster:

    alloc html4 srlze 656:    69707.3 i/s
    BASE_ html4 srlze 656:    63537.4 i/s - 1.10x  (± 0.02) slower

    alloc html4 srlze 70095:     1504.5 i/s
    BASE_ html4 srlze 70095:     1331.9 i/s - 1.13x  (± 0.02) slower

    alloc html4 srlze 1929522:      145.5 i/s
    BASE_ html4 srlze 1929522:      128.0 i/s - 1.14x  (± 0.02) slower

HTML5 serialization is not very impacted, as expected.

    alloc html5 srlze 656:    42255.7 i/s
    BASE_ html5 srlze 656:    41118.8 i/s - 1.03x  (± 0.02) slower

    alloc html5 srlze 70095:     1050.6 i/s
    BASE_ html5 srlze 70095:     1033.8 i/s - same-ish: difference falls within error

    alloc html5 srlze 1929522:      121.5 i/s
    BASE_ html5 srlze 1929522:      118.3 i/s - 1.03x  (± 0.02) slower
    @flavorjones
    flavorjones committed Dec 20, 2022
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