Performance Table

[Guido Badertscher\(gli\)]

Hello   We have tested several configurations to find the fastest way to convert SVG to various output formats. As we can see in the table below, it depends on the output format and resolution. We wonder why batik needs 5X execution  time for rasterizing a 300 dpi  (810.15 ms) image than for a 72 dpi (118.75 ms) image. We hope to get some comments / suggestions / corrections / other performance data.   used Versions: batik 1.6 SVGSalamander fop 0.20.5   ************************************************************************************************************************ Performance Test, 512 MB RAM, P4 2.4 GHz, SVG with 90 text Elements ************************************************************************************************************************ Techn               | DOM| sca| GIF 72  | GIF 300 | JPG 72  | JPG 300 | PDF 72  | PDF 300 | SVG 72  | SVG 300 | Null 72 | Null 300 ------------------------------------------------------------------------------------------------------------------------ Batik                 | Y       | Y   | 252.3        | 1,744.55| 156.25  | 1,436.7   | 299.25  | 289.85  | 21.1    | 17.15  | 122.65  | 636.75  Batik                 | Y      | N   | 242.95        | 1,987.5  | 168.75  | 1,246.1   | 286.7    | 288.3    | n.v.      | n.v      | 118.75  | 810.15  Batik                 | N      | N  | 338.25         | 2,273.45| 286.75  | 1,171.05 | 573.45  | 473.45  | 81.25   | 80.45 | 207.85  | 782.8   Salamander       | N      | Y  | 386 | 1,500     | 458       | 958         | n.v.       | n.v.        | n.v.      | n.v.    | 103       | 154     Salamander       | N      | N  | 178 | 1,260     | 476       | 943         | n.v.       | n.v.        | n.v.      | n.v.    | 103       | 146     sa/gif4j              | N      | Y  | 250 | 696        | n.v.       | n.v.         | n.v.       | n.v.         | n.v.      | n.v.    | 102       | 153     sa/jpgtra            | N      | Y  | n.v. | n.v.       | 117       | 339         | n.v.       | n.v.        | n.v.       | n.v.    | 103       | 153     ************************************************************************************************************************   Legend: ======= Batik apache batik Salamander SVGSalamander sa/gif4j Salamander as Rasterizer, gif4j as GIF-Encoder sa/jpgtra Salamander as Rasterizer, batik JPEGTranscoder as JPEG-Encoder DOM SVGDocument is used as Transformation input, sca scaling is done in the svg Document n.v. no value GIF 72 Output is GIF Image with Resolution of 72 dpi GIF 300 Output is GIF Image with Resolution of 300 dpi PDF apache FOP PDFTranscoder is used Null 72 Output is not Encoded -> only Rasterizing etc.   Gloor Informatik   Zurlindenstr. 215 a   8003 Zürich