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RustͰVMܕਖ਼نදݱ
 ΤϯδϯͬΆ͍ͷΛ
 ΞϨͨ͠࿩ KOBA789

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KOBA789 • େֶ΍ΊͯྉཧΛָ͠Έʹ͢ΔձࣾͰࣾһ
 ΍ͬͯΔ • ࣾͰ͸δϟόॻ͍ͯΔ͠಺༰ͱ͸ؔ܎ͳ͍ • େੲʹNode.jsͷຊॻ͍ͨؾ͕͢Δ • Node.jsྲྀߦΒͤͯ͝ΊΜͳ͍͞

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KOBA789 ͪΐ͏Ͳ2೥લʹ৮ͬͯͨΒ͍͠

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MeCab(w/ IPA dic) Ͱղੳͨ͠ܗଶૉྻʹ ύλʔϯϚον΍Γ͍ͨ KOBA789

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KOBA789

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10ྻxNߦ N͸ઍສΦʔμʔ KOBA789

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ϕΫτϧྻʹਖ਼نදݱ KOBA789

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ͳΜͱͳ͘VMܕ KOBA789

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Rust͍͍ͱ͜Ζ • ྻڍܕ͕·ͱ΋ • ྻڍܕͷύλʔϯϚον͕·ͱ΋ • ໢ཏੑνΣοΫ͸ࠓ࣌ৗࣝͩΑͶ • Unicodeจࣈྻͷѻ͍͕·ͱ΋ • Ͱ΋ͬͯ଎͍ KOBA789

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ॻ͍ͨ KOBA789

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χʔϞχοΫ Jump:2 Fail Expect:1:໊ࢺ:1 Expect:2:αม઀ଓ:1 Next Expect:1:ಈࢺ:1 Expect:5:αมɾεϧ:1 Match:OK Noop KOBA789

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ύϑΥʔϚϯε • Ϛγϯ: Xeon [email protected]/16GB RAM • ର৅ϑΝΠϧ: 1.7GB 3400ສߦ • ࣮ߦ࣌ؒ: 56.18sec (͖ͬ͞ଌͬͨ) • 30.26 MB/sec KOBA789

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νϡʔχϯά • Xcode ͷ Instruments Λ࢖͏ͱͳΜͱͳ͘
 ϓϩϑΝΠϧͰ͖Δ • εΫϦϓτݴޠͬΆ͘ࡶʹॻ͍ͨͷͰ
 jemalloc͕ͨ͘͞Μ KOBA789

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ͦͷ͏ͪ • filebufferͱ͍͏crate͕͋ͬͯศརͦ͏ • mmap ͬΆ͍͜ͱ͢Δ΍ͭ • zero(less) allocation Ͱ͍͍ײ͡ʹϑΝΠϧ
 ॲཧ͢ΔςΫχοΫ஌Γ͍ͨ KOBA789

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͔Μͦ͏ • ࠷ॳ͸lifetimeʹ຋࿔͞Ε·ͬͨ͘ • ϝϞϦͷؾ࣋ͪʹͳΔͱॻ͖΍͍͢ • Boxͱ͔Arcͱ͔Ұճ΋࢖Θͳͯ͘΋
 ͳΜͱ͔ͳΔ • ฒߦॲཧ΋ωοτϫʔΫ΋΍ͬͯͶ͐ • C++͋·Γॻ͔ͳ͍ͷͰmoveͱ͔Α͘Θ͔ͬͯͶ͐ KOBA789