[ https://issues.apache.org/jira/browse/PDFBOX-2117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14058731#comment-14058731 ]
Petr Slaby commented on PDFBOX-2117: ------------------------------------ Shaola, another idea in the similar direction - what about using a simple array instead of the HashMap? As far as I can tell, you have an array of values from zero to n. Why not put them into an array and use the array index instead of HashMap key? > AxialShadingContext is slow > --------------------------- > > Key: PDFBOX-2117 > URL: https://issues.apache.org/jira/browse/PDFBOX-2117 > Project: PDFBox > Issue Type: Sub-task > Components: Rendering > Reporter: Petr Slaby > Attachments: 000001_MTEXT_CS6.pdf, AxialShading.patch, > AxialShading1.patch, AxialShadingContext.java.getrgbimage, > GWG061_Shading_x1a.pdf, GWG061_Shading_x1a.pdf-1.png, > GWG061_Shading_x1a.pdf-1.png-diff.png, Shading2Function2.pdf, > Shading2Function2.ps, Shading2Function2text.pdf, asy-shade.pdf, > color_gradient.pdf, shading_pattern.pdf > > > AxialShadingContext#getRaster() is on top of profiler hot spots in documents > that use an axial shading. Inside it, the slowest part is calling > PDColorSpaceRGB#toRGB() and PDFunctionType3#eval() (in this order). > -- This message was sent by Atlassian JIRA (v6.2#6252)