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Subject: RE: DOCBOOK-APPS: XSL 1.52.2 Performance
I would switch to XSLTProc, but there's that whole extension function business that XSLTProc doesn't do yet. Jeff Beal Ansys, Inc. (724)514-3150 jeff.beal@ansys.com -----Original Message----- From: Bob Stayton [mailto:bobs@caldera.com] Sent: Friday, July 19, 2002 3:00 PM To: Jeff Beal; DocBook Mailing List (E-mail) Subject: Re: DOCBOOK-APPS: XSL 1.52.2 Performance On Fri, Jul 19, 2002 at 09:15:27AM -0400, Jeff Beal wrote: > I just upgraded my XSL stylesheets from 1.48 to 1.52.2, and my build time > went through the roof. With 1.48, the build would take about 5 hours. I > came in this morning, it had been running for 17 hours, and was only about > 1/3 of the way through. > > Here's what I'm using: > XSL Stylesheets 1.52.2 > Saxon > > Here's my machine: > Dual Pentium 1.4 GHz processors > 2 GB RAM > > Has anyone else seen this sort of performance hit? That adds up to a factor of 10 increase in time. I was curious, so I ran some timed runs on a six chapter book with two XSL processors and several html stylesheet versions, with these results (all times in seconds). This was on a 500 Mhz Linux box with 256 MB. Saxon version is 6.5.2. saxon xsltproc 1.48 docbook.xsl 64 9 1.49 docbook.xsl 72 10 1.50.0 docbook.xsl 87 11 1.51.1 docbook.xsl 102 11 1.52.2 docbook.xsl 93 12 1.48 chunk.xsl 91 14 1.49 chunk.xsl 105 15 1.50.0 chunk.xsl 106 16 1.51.1 chunk.xsl 161 27 1.52.2 chunk.xsl 217 29 Looks like the biggest change was in chunking between 150 and 151. But I don't see anything like a factor of 10 increase, only about 2 for saxon chunking. Maybe your documents are much bigger, but you also have much more memory. If I had that much doc to build, I'd figure how to use xsltproc instead of saxon. 8^) -- Bob Stayton 400 Encinal Street Publications Architect Santa Cruz, CA 95060 Technical Publications voice: (831) 427-7796 Caldera International, Inc. fax: (831) 429-1887 email: bobs@caldera.com
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