Did you turn on caching and use getTemplate? Makes a big difference. WILL
On 4/4/06, Ståle Undheim <[EMAIL PROTECTED]> wrote: > I am currently working on a project where we are evaluating wheter to > use Velocity or WebMacro. I did some performance test in relation to how > we intend to use either of the parsing engines. > > We are making a Web UI framework, and its very much based on nesting > components. IE. you have a frame, and inside it you have various > sections, which again contains components. So you end up with nesting > alot of components and their associated template files. > > In order to test things the way we used it, I made a simple Class that > would have an associated VM/WM file, and recurse several levels deep. > > Full code can be found here: > http://apollo.coretrek.com/~staaleu/VelocityPerformance.tar.gz > > Dependent packages are here: > http://apollo.coretrek.com/~staaleu/ > > There is a slight difference in code from WM 1.1 to 2.0, commented on > line 91 of NestedObject.java > > The basic constructor of the class is as follows: > > ________________________________ > public NestedObject() { > this(0); > } > > private NestedObject(int level) { > _level = level; > for (int i=0; i<level; i++) { > _indentation+=" "; > } > if (_level == LEVELS) { > _nested = Collections.EMPTY_LIST; > } > else { > _nested = new ArrayList(CHILD_COUNT); > for (int i = 0; i < CHILD_COUNT; i++) { > _nested.add(new NestedObject(_level + 1)); > } > } > } > ________________________________ > > So creating a NestedObject, creates a tree of child objects. The Class > has an associated VM/WM file that looks like this: > ________________________________ > $this.getIndentation()START LEVEL $this.Level > #foreach ($obj in $this.Nested) > $obj > #end > $this.getIndentation()END LEVEL $this.Level > ________________________________ > > Basically recursing several levels deep. > > For the WebMacro part, I use the Macro interface, which means I get an > outputstream in to write each object to. For Velocity I had to use the > toString() method, so a seperate String would be created for each level. > > Here are the test results as I got them: > WebMacro 1.1 init memoryConsumption: 1346552 > Run: 0, memoryConsumption: 926968, time: 439ms, size: 67179 > Run: 10, memoryConsumption: 467648, time: 54ms, size: 67179 > Run: 20, memoryConsumption: 468128, time: 54ms, size: 67179 > Run: 30, memoryConsumption: 468320, time: 54ms, size: 67179 > Run: 40, memoryConsumption: 468320, time: 64ms, size: 67179 > Run: 50, memoryConsumption: 468128, time: 56ms, size: 67179 > Run: 60, memoryConsumption: 468320, time: 66ms, size: 67179 > Run: 70, memoryConsumption: 468320, time: 57ms, size: 67179 > Run: 80, memoryConsumption: 468128, time: 55ms, size: 67179 > Run: 90, memoryConsumption: 468320, time: 54ms, size: 67179 > Run: 100, memoryConsumption: 468320, time: 54ms, size: 67179 > Total time for WebMacro: 7416 > > WebMacro 2.0 init memoryConsumption: 456808 > Run: 0, memoryConsumption: 713456, time: 1668ms, size: 67179 > Run: 10, memoryConsumption: 608160, time: 145ms, size: 67179 > Run: 20, memoryConsumption: 608208, time: 346ms, size: 67179 > Run: 30, memoryConsumption: 608160, time: 157ms, size: 67179 > Run: 40, memoryConsumption: 580208, time: 154ms, size: 67179 > Run: 50, memoryConsumption: 608160, time: 146ms, size: 67179 > Run: 60, memoryConsumption: 608208, time: 1534ms, size: 67179 > Run: 70, memoryConsumption: 608400, time: 144ms, size: 67179 > Run: 80, memoryConsumption: 580208, time: 149ms, size: 67179 > Run: 90, memoryConsumption: 608160, time: 143ms, size: 67179 > Run: 100, memoryConsumption: 608208, time: 146ms, size: 67179 > Total time for WebMacro2: 20406 > > Velocity 1.4 init memoryConsumption: 2280416 > Run: 0, memoryConsumption: 1872776, time: 2063ms, size: 67179 > Run: 10, memoryConsumption: 1729616, time: 1074ms, size: 67179 > Run: 20, memoryConsumption: 1707664, time: 1037ms, size: 67179 > Run: 30, memoryConsumption: 1707624, time: 1076ms, size: 67179 > Run: 40, memoryConsumption: 1707624, time: 1414ms, size: 67179 > Run: 50, memoryConsumption: 1707624, time: 1018ms, size: 67179 > Run: 60, memoryConsumption: 1707624, time: 1037ms, size: 67179 > Run: 70, memoryConsumption: 1707576, time: 1152ms, size: 67179 > Run: 80, memoryConsumption: 1707624, time: 1090ms, size: 67179 > Run: 90, memoryConsumption: 1707624, time: 1501ms, size: 67179 > Run: 100, memoryConsumption: 1707640, time: 1032ms, size: 67179 > Total time for Velocity: 130396 > > Please note that WebMacro 2.0 produces errornous output, but thats not > for this list. > > Am I using Velocity totally wrong? Is there interfaces that allows me to > nest objects and have good performance? > > Here is the full code for the NestedObject, which handles the output: > http://apollo.coretrek.com/~staaleu/NestedObject.java.txt > > -- > Ståle Undheim > Systemutvikler > > CoreTrek > Tlf.: +47 51 97 85 97 > E-post: [EMAIL PROTECTED] > WEB: www.coretrek.no > > "Simple is beautiful" > > > > -- Forio Business Simulations Will Glass-Husain [EMAIL PROTECTED] www.forio.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
