Cr2Decompressor: make whole-image decoding -10% faster. Wow?#626
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LebedevRI
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Jan 26, 2024
LebedevRI
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``` Comparing src/utilities/rsbench/rsbench-old to src/utilities/rsbench/rsbench Benchmark Time CPU Time Old Time New CPU Old CPU New --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- raw.pixls.us-unique/Canon/EOS 40D/_MG_0154.CR2/threads:32/process_time/real_time_pvalue 0.0004 0.0004 U Test, Repetitions: 9 vs 9 raw.pixls.us-unique/Canon/EOS 40D/_MG_0154.CR2/threads:32/process_time/real_time_mean -0.0796 -0.0796 27 25 27 25 raw.pixls.us-unique/Canon/EOS 40D/_MG_0154.CR2/threads:32/process_time/real_time_median -0.0796 -0.0796 27 25 27 25 raw.pixls.us-unique/Canon/EOS 40D/_MG_0154.CR2/threads:32/process_time/real_time_stddev +0.4248 +0.4262 0 0 0 0 raw.pixls.us-unique/Canon/EOS 40D/_MG_0154.CR2/threads:32/process_time/real_time_cv +0.5481 +0.5496 0 0 0 0 raw.pixls.us-unique/Canon/EOS 5D Mark II/09.canon.sraw1.cr2/threads:32/process_time/real_time_pvalue 0.0004 0.0004 U Test, Repetitions: 9 vs 9 raw.pixls.us-unique/Canon/EOS 5D Mark II/09.canon.sraw1.cr2/threads:32/process_time/real_time_mean -0.1362 -0.1359 105 91 3354 2898 raw.pixls.us-unique/Canon/EOS 5D Mark II/09.canon.sraw1.cr2/threads:32/process_time/real_time_median -0.1392 -0.1386 105 91 3354 2890 raw.pixls.us-unique/Canon/EOS 5D Mark II/09.canon.sraw1.cr2/threads:32/process_time/real_time_stddev +0.7775 +0.4946 1 1 19 29 raw.pixls.us-unique/Canon/EOS 5D Mark II/09.canon.sraw1.cr2/threads:32/process_time/real_time_cv +1.0577 +0.7297 0 0 0 0 raw.pixls.us-unique/Canon/EOS 5D Mark II/10.canon.sraw2.cr2/threads:32/process_time/real_time_pvalue 0.0004 0.0004 U Test, Repetitions: 9 vs 9 raw.pixls.us-unique/Canon/EOS 5D Mark II/10.canon.sraw2.cr2/threads:32/process_time/real_time_mean -0.0665 -0.0665 55 52 55 52 raw.pixls.us-unique/Canon/EOS 5D Mark II/10.canon.sraw2.cr2/threads:32/process_time/real_time_median -0.0665 -0.0665 55 52 55 52 raw.pixls.us-unique/Canon/EOS 5D Mark II/10.canon.sraw2.cr2/threads:32/process_time/real_time_stddev -0.9041 -0.9014 0 0 0 0 raw.pixls.us-unique/Canon/EOS 5D Mark II/10.canon.sraw2.cr2/threads:32/process_time/real_time_cv -0.8972 -0.8943 0 0 0 0 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9927.CR2/threads:32/process_time/real_time_pvalue 0.0004 0.0004 U Test, Repetitions: 9 vs 9 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9927.CR2/threads:32/process_time/real_time_mean -0.1502 -0.1502 225 191 225 191 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9927.CR2/threads:32/process_time/real_time_median -0.1496 -0.1496 225 192 225 192 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9927.CR2/threads:32/process_time/real_time_stddev +3.8736 +3.9278 0 0 0 0 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9927.CR2/threads:32/process_time/real_time_cv +4.7349 +4.7987 0 0 0 0 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9928.CR2/threads:32/process_time/real_time_pvalue 0.0004 0.6588 U Test, Repetitions: 9 vs 9 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9928.CR2/threads:32/process_time/real_time_mean -0.0764 +0.0020 267 247 6984 6998 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9928.CR2/threads:32/process_time/real_time_median -0.0756 -0.0010 267 247 6992 6984 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9928.CR2/threads:32/process_time/real_time_stddev +0.8443 +0.0099 1 1 38 38 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9928.CR2/threads:32/process_time/real_time_cv +0.9967 +0.0080 0 0 0 0 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9929.CR2/threads:32/process_time/real_time_pvalue 0.0004 0.0004 U Test, Repetitions: 9 vs 9 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9929.CR2/threads:32/process_time/real_time_mean -0.0689 -0.0689 154 144 154 144 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9929.CR2/threads:32/process_time/real_time_median -0.0682 -0.0682 154 144 154 144 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9929.CR2/threads:32/process_time/real_time_stddev +6.6731 +6.8931 0 0 0 0 raw.pixls.us-unique/Canon/EOS 5DS/2K4A9929.CR2/threads:32/process_time/real_time_cv +7.2405 +7.4768 0 0 0 0 raw.pixls.us-unique/Canon/EOS 77D/IMG_4049.CR2/threads:32/process_time/real_time_pvalue 0.0004 0.0004 U Test, Repetitions: 9 vs 9 raw.pixls.us-unique/Canon/EOS 77D/IMG_4049.CR2/threads:32/process_time/real_time_mean -0.1334 -0.1334 151 131 151 131 raw.pixls.us-unique/Canon/EOS 77D/IMG_4049.CR2/threads:32/process_time/real_time_median -0.1333 -0.1333 151 131 151 131 raw.pixls.us-unique/Canon/EOS 77D/IMG_4049.CR2/threads:32/process_time/real_time_stddev +0.1553 +0.1940 0 0 0 0 raw.pixls.us-unique/Canon/EOS 77D/IMG_4049.CR2/threads:32/process_time/real_time_cv +0.3331 +0.3777 0 0 0 0 OVERALL_GEOMEAN -0.1022 -0.0917 0 0 0 0 ```
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