I have a pipeline with 1 generator, 1 castor (non cachable) transformer, 2 xsl transformation and 1 xml serialization. I tryed to run it with both xalan and xsltc, and the benefit (mesured by JMeter with 5 and 50 concurrent threads) gave me a around 10% gain on the whole pipeline (that is less than 15% for the transformation, since the xslt transformer take nearly all the time).
Did you really have a 50% benefit ? >-----Message d'origine----- >De: Berin Loritsch [mailto:[EMAIL PROTECTED]] >Date: jeudi 11 juillet 2002 00:54 >À: [EMAIL PROTECTED] >Objet: RE: Performance of XSLTC > > >> From: Reinhard Poetz [mailto:[EMAIL PROTECTED]] >> >> Hi, >> >> Today I tried to find out how much faster XSLTC compared to >> Xalan is. My >> result: there is hardly any difference in performance (maybe >> XSLTC is slightly faster). >> >> My test case: >> ------------- >> I used a pipline with two xslt transformation steps. The >> first time I used the standard transformer (XSLTC) and then I >> changed the type to "xalan". I'm using Cocoon2.1dev - checked >> it out today. >> >> I got the results (measurements) from the profiler. >> >> I know that this was not a valid test series and only a first >> impression - but ... >> >> ... now I have some questions: >> ------------------------------ >> - Am I doing something wrong? >> - Do I have to make a real load test to get a difference in >> performance? >> - Did anybody get other/similar results? > >For testing the performance differences between the implementations, >you must not mix and match implementations. It should be all >Xalan or all XSLTC. Also, it is very important to TURN OFF CACHING!!! >You will not be measuring differences in the transformation engines >if caching is on. > >With two identical pipelines, with the exception of XSLTC vs. Xalan, >measure the time it takes for the whole request. The difference >between the times will be the result you are looking for. > >Do average 10 samples, dropping the high and the low samples. That >will help you determine the real speed difference. > >Pipelines: > >A) G->Tc->S >B) G->Tx->S > >If pipeline A is 30ms and pipeline B is 60ms on average, then the >marginal >benefit of using XSLTC is 50% > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, email: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
