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https://issues.apache.org/jira/browse/PDFBOX-3133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15027420#comment-15027420
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Sridhar edited comment on PDFBOX-3133 at 11/26/15 7:16 AM:
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The time I got is running in Eclipse as Applet. Set -Xmx1g in eclipse. Same
performance problem. CPU consumption is only 2 to 3%. It is memory demand
which might be causing the delay. All other applications were closed. Was
running only Eclipse . Out of 3 GB 1.6 GB was consumed by other apps and
another 1.4 GB is available. Still same issue.
Time was measured in 3 different machines in 3 different locations.
Machine 1: 2 GB RAM, 90 fonts, Thermal Printer - 24 to 34 sec
Machine 2: 3 GB RAM, 522 fonts, MS XPS redirect to file - 14 to 20 sec
Machine 3: 8 GB RAM, 1025 fonts, Thermal Printer - 2.5 sec.
was (Author: sridhar):
Running in Eclipse. Set -Xmx1g in eclipse. Same performance problem. CPU
consumption is only 2 to 3%. It is memory demand which is causing the delay.
Was running only Eclipse . Out of 3 GB 1.6 GB was consumed by other apps and
another 1.4 GB is available. Still same issue.
> PDFBox 2.0.0-RC2 and earlier 2.0.0 SNAPSHOT Versions print performance is
> poor with systems having low RAM < 3GB and lower number of fonts.
> -------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-3133
> URL: https://issues.apache.org/jira/browse/PDFBOX-3133
> Project: PDFBox
> Issue Type: Improvement
> Components: PDModel
> Affects Versions: 2.0.0
> Environment: MS Windows Systems with low RAM < 3GB and number of
> fonts were less < 592 (or if desired fonts in PDF to be printed are not
> available in local system )
> Reporter: Sridhar
> Assignee: John Hewson
> Labels: performance
> Fix For: 2.0.0
>
>
> PDFBox 2.0.0-RC1, SNAPSHOTS and RC2 versions print takes 15+ seconds.
> Steps to reproduce
> --------------------------
> Use Windows System with < 3 GB RAM
> Use Systems with less number of fonts or without specific fonts in PDF file
> to be printed.
> Printing PDF file
> Took 14 to 20 seconds in system with 3 GB RAM which had 522 foints
> Took 24 to 34 seconds in system with 2 GB RAM which had 90 fonts
> Took only 2.5 seconds in system with 8 GB RAM which had 1025 fonts.
> Doubt
> --------
> Not browsed the code, but following is the doubt as causing performance issue.
> Though the code caches fonts by storing fonts in local .pdfbox.cache file
> first time and caching fonts for subsequent times.
> Not clear whether the code updates the pdfbox fonts cache file if new fonts
> are found in new PDF file to be printed, while printing subsequent times.
> If the fonts in PDF file to be printed is not available in the .pdfbox.cache
> file stored in local system/local system what is the behaviour? Will the
> code download fonts and update cache for subsequent times or is it limited by
> fonts available in local system? Looks like later is the case and
> performance got hit either due to RAM or not constantly updating fonts cache
> or due to un availability of fonts in local system.
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