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Simon Willnauer edited comment on LUCENE-3648 at 12/14/11 2:20 PM: ------------------------------------------------------------------- here are my benchmark results with that patch: Multisegment index 20 segments 10M medium wiki documents no deletes: ||Task||QPS-trunk||StdDev trunk||QPS patch||StdDev patch||Pct diff|| |Respell|41.27|1.79|40.62|1.94|-10% - 7%| |PKLookup|89.89|5.44|88.82|5.52|-12% - 11%| |Fuzzy2|27.21|1.31|27.04|1.31|-9% - 9%| |Wildcard|21.42|1.13|21.45|0.90|-8% - 10%| |SpanNear|3.39|0.13|3.41|0.16|-7% - 9%| |Fuzzy1|53.48|2.49|53.77|2.31|-8% - 9%| |SloppyPhrase|2.67|0.11|2.68|0.13|-8% - 10%| |Phrase|8.98|0.67|9.07|0.73|-13% - 17%| |Prefix3|16.52|1.04|16.97|0.90|-8% - 15%| |TermGroup1M|18.50|0.44|19.13|0.45|-1% - 8%| |TermBGroup1M|24.51|0.57|25.40|0.63|-1% - 8%| |TermBGroup1M1P|14.92|0.42|15.57|0.55|-2% - 11%| |AndHighHigh|5.78|0.37|6.15|0.46|-7% - 22%| |OrHighMed|9.22|0.37|9.85|0.45|-1% - 16%| |IntNRQ|6.82|0.75|7.32|0.74|-13% - 32%| |OrHighHigh|5.88|0.27|6.35|0.32|-1% - 18%| |Term|68.03|3.73|73.70|5.76|-5% - 23%| |AndHighMed|20.10|1.64|21.78|2.22|-10% - 30%| Multisegment index 20 segments 10M medium wiki documents with deletes: ||Task||QPS trunk||StdDev trunk||QPS patch||StdDev patch||Pct diff|| |Respell|41.27|1.79|40.62|1.94|-10% - 7%| |PKLookup|89.89|5.44|88.82|5.52|-12% - 11%| |Fuzzy2|27.21|1.31|27.04|1.31|-9% - 9%| |Wildcard|21.42|1.13|21.45|0.90|-8% - 10%| |SpanNear|3.39|0.13|3.41|0.16|-7% - 9%| |Fuzzy1|53.48|2.49|53.77|2.31|-8% - 9%| |SloppyPhrase|2.67|0.11|2.68|0.13|-8% - 10%| |Phrase|8.98|0.67|9.07|0.73|-13% - 17%| |Prefix3|16.52|1.04|16.97|0.90|-8% - 15%| |TermGroup1M|18.50|0.44|19.13|0.45|-1% - 8%| |TermBGroup1M|24.51|0.57|25.40|0.63|-1% - 8%| |TermBGroup1M1P|14.92|0.42|15.57|0.55|-2% - 11%| |AndHighHigh|5.78|0.37|6.15|0.46|-7% - 22%| |OrHighMed|9.22|0.37|9.85|0.45|-1% - 16%| |IntNRQ|6.82|0.75|7.32|0.74|-13% - 32%| |OrHighHigh|5.88|0.27|6.35|0.32|-1% - 18%| |Term|68.03|3.73|73.70|5.76|-5% - 23%| |AndHighMed|20.10|1.64|21.78|2.22|-10% - 30%| executed on Linux with Java Version "1.6.0_26" cmd: java -XX:BiasedLockingStartupDelay=0 -Xms2g -Xmx2g -server was (Author: simonw): here are my benchmark results with that patch: Multisegment index 20 segments 10M medium wiki documents no deletes: ||Task||QPS-trunk||StdDev trunk||QPS patch||StdDev patch||Pct diff|| |Respell|41.27|1.79|40.62|1.94|-10%-7%| |PKLookup|89.89|5.44|88.82|5.52|-12%-11%| |Fuzzy2|27.21|1.31|27.04|1.31|-9%-9%| |Wildcard|21.42|1.13|21.45|0.90|-8%-10%| |SpanNear|3.39|0.13|3.41|0.16|-7%-9%| |Fuzzy1|53.48|2.49|53.77|2.31|-8%-9%| |SloppyPhrase|2.67|0.11|2.68|0.13|-8%-10%| |Phrase|8.98|0.67|9.07|0.73|-13%-17%| |Prefix3|16.52|1.04|16.97|0.90|-8%-15%| |TermGroup1M|18.50|0.44|19.13|0.45|-1%-8%| |TermBGroup1M|24.51|0.57|25.40|0.63|-1%-8%| |TermBGroup1M1P|14.92|0.42|15.57|0.55|-2%-11%| |AndHighHigh|5.78|0.37|6.15|0.46|-7%-22%| |OrHighMed|9.22|0.37|9.85|0.45|-1%-16%| |IntNRQ|6.82|0.75|7.32|0.74|-13%-32%| |OrHighHigh|5.88|0.27|6.35|0.32|-1%-18%| |Term|68.03|3.73|73.70|5.76|-5%-23%| |AndHighMed|20.10|1.64|21.78|2.22|-10%-30%| Multisegment index 20 segments 10M medium wiki documents with deletes: ||Task||QPS trunk||StdDev trunk||QPS patch||StdDev patch||Pct diff|| |Respell|41.27|1.79|40.62|1.94|-10%-7%| |PKLookup|89.89|5.44|88.82|5.52|-12%-11%| |Fuzzy2|27.21|1.31|27.04|1.31|-9%-9%| |Wildcard|21.42|1.13|21.45|0.90|-8%-10%| |SpanNear|3.39|0.13|3.41|0.16|-7%-9%| |Fuzzy1|53.48|2.49|53.77|2.31|-8%-9%| |SloppyPhrase|2.67|0.11|2.68|0.13|-8%-10%| |Phrase|8.98|0.67|9.07|0.73|-13%-17%| |Prefix3|16.52|1.04|16.97|0.90|-8%-15%| |TermGroup1M|18.50|0.44|19.13|0.45|-1%-8%| |TermBGroup1M|24.51|0.57|25.40|0.63|-1%-8%| |TermBGroup1M1P|14.92|0.42|15.57|0.55|-2%-11%| |AndHighHigh|5.78|0.37|6.15|0.46|-7%-22%| |OrHighMed|9.22|0.37|9.85|0.45|-1%-16%| |IntNRQ|6.82|0.75|7.32|0.74|-13%-32%| |OrHighHigh|5.88|0.27|6.35|0.32|-1%-18%| |Term|68.03|3.73|73.70|5.76|-5%-23%| |AndHighMed|20.10|1.64|21.78|2.22|-10%-30%| executed on Linux with Java Version "1.6.0_26" cmd: java -XX:BiasedLockingStartupDelay=0 -Xms2g -Xmx2g -server > Speed up SegementDocsEnum by making it more friendly for JIT optimizations > -------------------------------------------------------------------------- > > Key: LUCENE-3648 > URL: https://issues.apache.org/jira/browse/LUCENE-3648 > Project: Lucene - Java > Issue Type: Improvement > Components: core/codecs, core/search > Affects Versions: 4.0 > Reporter: Simon Willnauer > Fix For: 4.0 > > Attachments: LUCENE-3648.patch > > > Since we moved the bulk reading into the codec ie. make all bulk reading > codec private in LUCENE-3584 we have seen some performance > [regression|http://people.apache.org/~mikemccand/lucenebench/Term.html] on > different CPUs. I tried to optimize the implementation to make it more > eligible for runtime optimizations, tried to make loops JIT friendly by > moving out branches where I can, minimize member access in all loops, use > final members where possible and specialize the two common cases With & > Without LiveDocs. > I will attache a patch and my benchmark results in a minute. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org