icXML is the name of our project to dramatically accelerate Xerces performance on modern commodity processors by taking advantage of SIMD and multicore capabilities and parallel bit stream technology.
We are interested in feedback and interest from developers and potential users. We are also interested in identifying a potential Champion who could help put us on track to become an official Xerces subproject. Version 0.8 of icXML has been released and is available together with a development version on the costar.sfu.ca server. svn co http://parabix.costar.sfu.ca/svn/icXML/icXML-0.8 svn co http://parabix.costar.sfu.ca/svn/icXML/icXML-devel Trac browser: http://parabix.costar.sfu.ca/browser/icXML To get an idea of the performance prospects, here are end-to-end figures using Xerces-C 3.1.1 and icXML with a GML-to-SVG conversion application. Xerces-C 3.1.1 Performance counter stats for './gml2svg_3_1_1 ../../data/layer/gml-10 out_3': 24,444,713,630 instructions:u # 1.83 insns per cycle [83.35%] 13,344,529,298 cycles:u # 0.000 GHz [83.33%] 41,915,991 branch-misses:u # 0.70% of all branches [83.33%] 6,013,112,976 branches:u [83.34%] 81,290,233 L1-dcache-misses:u [83.33%] 153,198,046 L1-icache-misses:u [66.73%] 3.764054961 seconds time elapsed icXML Performance counter stats for './gml2svg_icx ../../data/layer/gml-10 out_3': 16,470,263,948 instructions:u # 1.89 insns per cycle [83.33%] 8,707,613,130 cycles:u # 0.000 GHz [83.33%] 13,912,341 branch-misses:u # 0.43% of all branches [83.35%] 3,244,282,034 branches:u [83.33%] 67,380,609 L1-dcache-misses:u [83.33%] 32,141,837 L1-icache-misses:u [66.66%] 2.554010404 seconds time elapsed icXML experimental version with 2-thread pipeline parallelism Performance counter stats for './gml2svg_icx_pipeline ../../data/layer/gml-10 out_3': 16,544,368,151 instructions:u # 1.37 insns per cycle [84.11%] 12,060,226,476 cycles:u # 0.000 GHz [83.93%] 13,212,826 branch-misses:u # 0.39% of all branches [83.92%] 3,357,152,226 branches:u [83.78%] 77,941,092 L1-dcache-misses:u [83.10%] 25,757,287 L1-icache-misses:u [67.36%] 2.180680680 seconds time elapsed Rob Cameron, CTO, International Characters, Inc Professor of Computing Science, Simon Fraser University http://www.international-characters.com/ http://parabix.costar.sfu.ca/ --------------------------------------------------------------------- To unsubscribe, e-mail: c-dev-unsubscr...@xerces.apache.org For additional commands, e-mail: c-dev-h...@xerces.apache.org
