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https://issues.apache.org/jira/browse/PDFBOX-2007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13957412#comment-13957412
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Tilman Hausherr commented on PDFBOX-2007:
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Btw don't worry if the answer to the first question (profiling) is "no", I
could also do it myself. But I'd really be interested in an answer the second
question, i.e. what sort of PDF it is, i.e. lots of graphic, lots of text, or
"doesn't matter what PDF".
> Performance regression since PDFRenderer
> ----------------------------------------
>
> Key: PDFBOX-2007
> URL: https://issues.apache.org/jira/browse/PDFBOX-2007
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.0
> Reporter: François Bernier
> Labels: perfomance, regression
>
> Hi,
> I have the following toy project where I use PDFBox:
> https://github.com/fbernier/taz-clj
> I've been using the snapshot versions of PDFBox for quite a while and
> recently since the move from RenderUtil#convertToImage to
> PDFRenderer#renderImage (this commit:
> https://github.com/fbernier/taz-clj/commit/47917d494f2a9a0999da7f36827c45145d4bb42c),
> there is quite a big performance regression. If I change the PDFBox
> dependency to 1.8.x, everything is good. Here are my benchmarks:
> PDFBox 1.8.x:
> Running 1m test @ http://127.0.0.1:8080/testing.pdf?page=1
> 4 threads and 4 connections
> Thread Stats Avg Stdev Max +/- Stdev
> Latency 208.98ms 58.27ms 391.43ms 52.08%
> Req/Sec 4.63 1.73 8.00 62.88%
> 1224 requests in 1.00m, 72.34MB read
> Requests/sec: 20.40
> Transfer/sec: 1.21MB
> PDFBox 2.0.0:
> Running 1m test @ http://127.0.0.1:8080/testing.pdf?page=1
> 4 threads and 4 connections
> Thread Stats Avg Stdev Max +/- Stdev
> Latency 920.25ms 378.94ms 2.76s 91.38%
> Req/Sec 0.80 0.40 1.00 80.17%
> 275 requests in 1.00m, 15.85MB read
> Requests/sec: 4.58
> Transfer/sec: 270.41KB
> I have not looked any further than this and have no more data to give you
> (yet).
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