[jira] [Created] (PDFBOX-3382) pdf creation very slow

["kazu (JIRA)" <ji...@apache.org>]

kazu created PDFBOX-3382:
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             Summary: pdf creation very slow
                 Key: PDFBOX-3382
                 URL: https://issues.apache.org/jira/browse/PDFBOX-3382
             Project: PDFBox
          Issue Type: Improvement
          Components: Writing
    Affects Versions: 2.0.2
            Reporter: kazu
            Priority: Minor
             Fix For: 1.8.12


compared to older 1.8.x versions, the new 2.0.x branch is awesomely slow.
benchmarks using a multipage document with few images and many text-lines indiciate a performance penalty of about 1:20 compared with the old 1.8.x branch.

profiling via VisualVM indicates that the new font handling causes this performance drawback:

TrueTypeFont.nameToGid() [31%]
TrueTypeFont.hasGlyph() [23%]
PDFont.getWidth() [16%]
PDType1Font.encode() [9%]

is there any workaround for this? the current setup only creates about 10 PDFs/second compared to over 200/second for the 1.8.x branch...



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