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マルチスレッディングの仕組み (2016)
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4D Japan
November 01, 2024
Technology
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マルチスレッディングの仕組み (2016)
4D Japan
November 01, 2024
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Transcript
ϚϧνεϨοσΟϯάͷΈ inside multi-threading Laurent Esnault, Vice President of Engineering ϩϗϯɾΤϊʔ
༻ޠղઆ
ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
• ϓϩηεಉ࢜ͰεέδϡʔϧΛཧ - ໌ࣔత·ͨ҉ࣔత*%-& ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
• ϓϩηεಉ࢜ͰεέδϡʔϧΛཧ - ໌ࣔత·ͨ҉ࣔత*%-& • ར༻Ͱ͖ΔίΞݸͷΈ ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
• ϓϩηεಉ࢜ͰεέδϡʔϧΛཧ - ໌ࣔత·ͨ҉ࣔత*%-& • ར༻Ͱ͖ΔίΞݸͷΈ • ϢʔβʔΠϯλϑΣʔε0, ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
• ϓϩηεಉ࢜ͰεέδϡʔϧΛཧ - ໌ࣔత·ͨ҉ࣔత*%-& • ར༻Ͱ͖ΔίΞݸͷΈ • ϢʔβʔΠϯλϑΣʔε0, ϓϦΤϯϓςΟϒϞʔυ ίΦϖϥςΟϒϞʔυ
༻ޠղઆ
• ϓϩηεಉ࢜ͰεέδϡʔϧΛཧ - ໌ࣔత·ͨ҉ࣔత*%-& • ར༻Ͱ͖ΔίΞݸͷΈ • ϢʔβʔΠϯλϑΣʔε0, ϓϦΤϯϓςΟϒϞʔυ •
04͕εέδϡʔϧΛཧ ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
• ϓϩηεಉ࢜ͰεέδϡʔϧΛཧ - ໌ࣔత·ͨ҉ࣔత*%-& • ར༻Ͱ͖ΔίΞݸͷΈ • ϢʔβʔΠϯλϑΣʔε0, ϓϦΤϯϓςΟϒϞʔυ •
04͕εέδϡʔϧΛཧ • ۭ͍͍ͯΔίΞΛͯ͢ར༻Ͱ͖Δ ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
• ϓϩηεಉ࢜ͰεέδϡʔϧΛཧ - ໌ࣔత·ͨ҉ࣔత*%-& • ར༻Ͱ͖ΔίΞݸͷΈ • ϢʔβʔΠϯλϑΣʔε0, ϓϦΤϯϓςΟϒϞʔυ •
04͕εέδϡʔϧΛཧ • ۭ͍͍ͯΔίΞΛͯ͢ར༻Ͱ͖Δ • ϢʔβʔΠϯλϑΣʔε/( ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
ϓϦΤϯϓςΟϒϞʔυ ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
U U $16 $16 ϓϦΤϯϓςΟϒϞʔυ ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
ϓϩηε" U U $16 $16 *%-& ϓϦΤϯϓςΟϒϞʔυ ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
ϓϩηε" ϓϩηε# U U $16 $16 *%-& *%-& ϓϦΤϯϓςΟϒϞʔυ ίΦϖϥςΟϒϞʔυ
༻ޠղઆ
ϓϩηε" ϓϩηε" ϓϩηε# U U $16 $16 *%-& *%-& ϓϦΤϯϓςΟϒϞʔυ
ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
ϓϩηε" ϓϩηε" ϓϩηε# U U $16 $16 U U $16
$16 *%-& *%-& ϓϦΤϯϓςΟϒϞʔυ ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
ϓϩηε" ϓϩηε# ϓϩηε" ϓϩηε" ϓϩηε# U U $16 $16 U
U $16 $16 *%-& *%-& ϓϦΤϯϓςΟϒϞʔυ ίΦϖϥςΟϒϞʔυ ༻ޠղઆ
ϓϦΤϯϓςΟϒϞʔυ
ϓϦΤϯϓςΟϒϞʔυ • %#%
ϓϦΤϯϓςΟϒϞʔυ • %#% • 42-
ϓϦΤϯϓςΟϒϞʔυ • %#% • 42- • )551
σϞϯετϨʔγϣϯ %ϓϩηεΛϓϦΤϯϓςΟϒϞʔυͰ࣮ߦ͢Δ
BE PREPARED NOT SCARED ৺ߏ͕͑େࣄ ҟมࡂΛʰාΕΔͳ४උͤΑʱ ʢถͷඪޠʣ
BE PREPARED NOT SCARED • Ϗοτ൛ • ίϯύΠϧϞʔυ • ϓϦΤϯϓςΟϒରԠίϚϯυ
৺ߏ͕͑େࣄ ҟมࡂΛʰාΕΔͳ४උͤΑʱ ʢถͷඪޠʣ
BE PREPARED NOT SCARED • Ϗοτ൛ • ίϯύΠϧϞʔυ • ϓϦΤϯϓςΟϒରԠίϚϯυ
৺ߏ͕͑େࣄ ҟมࡂΛʰාΕΔͳ४උͤΑʱ ʢถͷඪޠʣ
BE PREPARED NOT SCARED • Ϗοτ൛ • ίϯύΠϧϞʔυ • ϓϦΤϯϓςΟϒରԠίϚϯυ
৺ߏ͕͑େࣄ ҟมࡂΛʰාΕΔͳ४උͤΑʱ ʢถͷඪޠʣ
ΦϯϥΠϯυΩϡϝϯτ
ΦϯϥΠϯυΩϡϝϯτ
࣮ߦϞʔυ
࣮ߦϞʔυ ϝιουϓϩύςΟ
• ϓϦΤϯϓςΟϒ࣮ߦՄ ࣮ߦϞʔυ ϝιουϓϩύςΟ
• ϓϦΤϯϓςΟϒ࣮ߦՄ • ϓϦΤϯϓςΟϒ࣮ߦෆՄ ࣮ߦϞʔυ ϝιουϓϩύςΟ
• ϓϦΤϯϓςΟϒ࣮ߦՄ • ϓϦΤϯϓςΟϒ࣮ߦෆՄ • ಛʹઃఆ͠ͳ͍ ࣮ߦϞʔυ ϝιουϓϩύςΟ
• ϓϦΤϯϓςΟϒ࣮ߦՄ • ϓϦΤϯϓςΟϒ࣮ߦෆՄ • ಛʹઃఆ͠ͳ͍ ࣮ߦϞʔυ ίϯύΠϥʔʹΑΔνΣοΫ ϝιουϓϩύςΟ
• ϓϦΤϯϓςΟϒ࣮ߦՄ • ϓϦΤϯϓςΟϒ࣮ߦෆՄ • ಛʹઃఆ͠ͳ͍ • ϓϦΤϯϓςΟϒରԠ ࣮ߦϞʔυ ίϯύΠϥʔʹΑΔνΣοΫ
ϝιουϓϩύςΟ
• ϓϦΤϯϓςΟϒ࣮ߦՄ • ϓϦΤϯϓςΟϒ࣮ߦෆՄ • ಛʹઃఆ͠ͳ͍ • ϓϦΤϯϓςΟϒରԠ • ϓϦΤϯϓςΟϒඇରԠ
࣮ߦϞʔυ ίϯύΠϥʔʹΑΔνΣοΫ ϝιουϓϩύςΟ
σϞϯετϨʔγϣϯ ࣮ߦϞʔυ
ॳΊʹݺΕΔ ϓϩδΣΫτϝιου͚ͩ มߋ͢Εྑ͍ ϙΠϯτ
BE PREPARED NOT SCARED • Ϗοτ൛ • ίϯύΠϧϞʔυ • ϓϦΤϯϓςΟϒରԠίϚϯυ
• Πϯλʔϓϩηεม༻ېࢭ • ϢʔβʔΠϯλϑΣʔεແ͠ ৺ߏ͕͑େࣄ ҟมࡂΛʰාΕΔͳ४උͤΑʱ ʢถͷඪޠʣ
BE PREPARED NOT SCARED • Ϗοτ൛ • ίϯύΠϧϞʔυ • ϓϦΤϯϓςΟϒରԠίϚϯυ
• Πϯλʔϓϩηεม༻ېࢭ • ϢʔβʔΠϯλϑΣʔεແ͠ ৺ߏ͕͑େࣄ ҟมࡂΛʰාΕΔͳ४උͤΑʱ ʢถͷඪޠʣ
ίΦϖϥςΟϒ
ίΦϖϥςΟϒ <>myVar:=<>myVar+1
ίΦϖϥςΟϒ <>myVar:=<>myVar+1 IDLE IDLE
ϓϦΤϯϓςΟϒ <>myVar:=<>myVar+1 <>myVar:=<>myVar+1 <>myVar:=<>myVar+1 <>myVar:=<>myVar+1 IDLE IDLE
ϓϦΤϯϓςΟϒ <>myVar:=<>myVar+1 <>myVar:=<>myVar+1 <>myVar:=<>myVar+1 <>myVar:=<>myVar+1 IDLE IDLE IDLE
<>myVar:=<>myVar+1 CLEAR SEMAPHORE("myVar") If(Not(Semaphore("myVar";1000))) ϓϦΤϯϓςΟϒ End if
ΠϯλʔϓϩηεΛΘͣʹͲ͏ͬͯ ϓϩηεؒͰใΛΓऔΓ͢Δͷ
$"--803,&3
$"--803,&3 • ໊લ͕͞ΕͨϝοηʔδϘοΫε
$"--803,&3 • ໊લ͕͞ΕͨϝοηʔδϘοΫε • ϝιουΛ࣮ߦ͢ΔͨΊͷϓϩηε
$"--803,&3 • ໊લ͕͞ΕͨϝοηʔδϘοΫε • ϝιουΛ࣮ߦ͢ΔͨΊͷϓϩηε • $"--803,&3ͰϝοηʔδΛಧ͚Δ - Ҿ/FXQSPDFTTʹࣅ͍ͯΔ -
ҙͷϓϩδΣΫτϝιου - ҙͷύϥϝʔλʔ
myWorker ΞϓϦέʔγϣϯϓϩηε myWorkerϓϩηε
myWorker CALL WORKER("myWorker"; "myMethod";$param) ΞϓϦέʔγϣϯϓϩηε myWorkerϓϩηε
myWorker CALL WORKER("myWorker"; "myMethod";$param) ΞϓϦέʔγϣϯϓϩηε myWorkerϓϩηε
myWorker CALL WORKER("myWorker"; "myMethod";$param) ΞϓϦέʔγϣϯϓϩηε myWorkerϓϩηε you’ve got mail!
myWorker ΞϓϦέʔγϣϯϓϩηε myWorkerϓϩηε CALL WORKER("myWorker"; "myMethod";$param)
myWorker ΞϓϦέʔγϣϯϓϩηε myWorkerϓϩηε CALL WORKER("myWorker"; "myMethod";$param)
myWorker ΞϓϦέʔγϣϯϓϩηε myWorkerϓϩηε myMethod($param) CALL WORKER("myWorker"; "myMethod";$param)
myWorker ΞϓϦέʔγϣϯϓϩηε myWorkerϓϩηε CALL WORKER("myWorker"; "myMethod";$param)
σϞϯετϨʔγϣϯ ϓϩηεؒͷσʔλ௨৴
BE PREPARED NOT SCARED • Ϗοτ൛ • ίϯύΠϧϞʔυ • ϓϦΤϯϓςΟϒରԠίϚϯυ
• Πϯλʔϓϩηεม༻ېࢭ • ϢʔβʔΠϯλϑΣʔεແ͠ ৺ߏ͕͑େࣄ ҟมࡂΛʰාΕΔͳ४උͤΑʱ ʢถͷඪޠʣ
BE PREPARED NOT SCARED • Ϗοτ൛ • ίϯύΠϧϞʔυ • ϓϦΤϯϓςΟϒରԠίϚϯυ
• Πϯλʔϓϩηεม༻ېࢭ • ϢʔβʔΠϯλϑΣʔεແ͠ ৺ߏ͕͑େࣄ ҟมࡂΛʰාΕΔͳ४උͤΑʱ ʢถͷඪޠʣ
Ͳ͏ͬͯϓϦΤϯϓςΟϒϓϩηεͷ ϢʔβʔΠϯλϑΣʔεΛ࡞͢Δͷ
$"--'03.
$"--'03. • ΠϯυຖʹϝοηʔδϘοΫε
$"--'03. • ΠϯυຖʹϝοηʔδϘοΫε • ϑΥʔϜͷίϯςΩετͰϝιουΛ࣮ߦ͢Δ
$"--'03. • ΠϯυຖʹϝοηʔδϘοΫε • ϑΥʔϜͷίϯςΩετͰϝιουΛ࣮ߦ͢Δ • $"--'03.ͰϝοηʔδΛಧ͚Δ - Ҿ$"--803,&3ʹࣅ͍ͯΔ -
ҙͷϓϩδΣΫτϝιου - ҙͷύϥϝʔλʔ
myWindow ϓϩηε·ͨϫʔΧʔ myWindowΠϯυ
myWindow CALL FORM($myWindow; "myMethod";$param) ϓϩηε·ͨϫʔΧʔ myWindowΠϯυ
myWindow CALL FORM($myWindow; "myMethod";$param) ϓϩηε·ͨϫʔΧʔ myWindowΠϯυ
myWindow CALL FORM($myWindow; "myMethod";$param) ϓϩηε·ͨϫʔΧʔ myWindowΠϯυ you’ve got mail!
myWindow CALL FORM($myWindow; "myMethod";$param) ϓϩηε·ͨϫʔΧʔ myWindowΠϯυ
myWindow CALL FORM($myWindow; "myMethod";$param) ϓϩηε·ͨϫʔΧʔ myWindowΠϯυ
myWindow CALL FORM($myWindow; "myMethod";$param) ϓϩηε·ͨϫʔΧʔ myWindowΠϯυ myMethod($param)
myWindow CALL FORM($myWindow; "myMethod";$param) ϓϩηε·ͨϫʔΧʔ myWindowΠϯυ
σϞϯετϨʔγϣϯ Πϯυؒͷϝοηʔδૹड৴
Ϗοτ൛
Ϗοτ൛ Windows Mac
v12 Ϗοτ൛ Windows Mac
v12 Ϗοτ൛ Windows Mac v13 OD BC
v12 Ϗοτ൛ Windows Mac v13 OD BC v15 OD BC
v12 v15 Rx Ϗοτ൛ Windows Mac v13 OD BC v15
OD BC
v12 v15 Rx v15 R5 Ϗοτ൛ Windows Mac v13 OD
BC v15 OD BC
v12 v15 Rx v15 R5 v16 Ϗοτ൛ Windows Mac v13
OD BC v15 OD BC
ϓϦΤϯϓςΟϒϞʔυ ΫϥΠΞϯταʔόʔ σʔλϕʔε 42- )551 TUBUJD EZOBNJD ϥϯήʔδ
·ͱΊ
·ͱΊ • Ϗοτ൛ ֦ுੑ ͓ΑͼॲཧྗΞοϓͷجૅ εέʔϥϏϦςΟ ύϑΥʔϚϯε
·ͱΊ • Ϗοτ൛ ֦ுੑ ͓ΑͼॲཧྗΞοϓͷجૅ εέʔϥϏϦςΟ ύϑΥʔϚϯε • ඇಉظϝοηʔδ؆୯͔ͭೳతͳϓϩηεؒ௨৴ ηϚϑΥʔෆཁɾσουϩοΫճආ
·ͱΊ • Ϗοτ൛ ֦ுੑ ͓ΑͼॲཧྗΞοϓͷجૅ εέʔϥϏϦςΟ ύϑΥʔϚϯε • ඇಉظϝοηʔδ؆୯͔ͭೳతͳϓϩηεؒ௨৴ ηϚϑΥʔෆཁɾσουϩοΫճආ
• ૣɹɹΛೖखͯ͠׳Ε͓͖ͯ·͠ΐ͏ 3