ä»®æ³ã¢ãã¬ã¹ã¨ç©çã¢ãã¬ã¹ãå¤æãã Address Translationã®åºæ¬ ååã¯ã¡ã¢ãªã¼ã®é層æ§é ã¨åæ§ã«ãè¤æ°æ®µéã®ãã£ãã·ã¥æ§æããããã¨ã説æãããä»åã¯ã¡ãã£ã¨è¦æ¹ãå¤ãã話ãããããã¾ãããã£ãã·ã¥ã¨ããå½¢ã§CPUå é¨ã«æè¼ããã¦ãããå¥ã®ã¡ã¢ãªã¼ã«ã¤ãã¦è§¦ãããã ãåç¥ã®éãã1次ãã£ãã·ã¥ã¯é常ããã¼ãã¼ãã»ã¢ã¼ããã¯ãã£ã¼ãã¨å¼ã°ããæ§é ã«åºã¥ããå½ä»¤ç¨ã¨ãã¼ã¿ç¨ãããããå¥ã«ç¨æãããã詳細ã¯å¾è¿°ãããã2次ãã£ãã·ã¥ãæè¿ã§ã¯3次ãã£ãã·ã¥ãæè¼ããããã»ããµã¼ãå¤ããªã£ãããã ããããã¯ãããããããã°ã©ã ãã®ãã®ãããã³ããã°ã©ã ã®å®è¡æã«å©ç¨ããããã¼ã¿ãã§ããã ãã§ã¯ãã以å¤ã«ä½ãããã®ãï¼ãã¨è¨ãããã¨ããããçµæ§ãããä¸çªå¤ãå©ç¨ãããã®ããTLBã(Translation Lookaside Buffer)ã¨è¨ããããã®ã ãããã¯ãä»®æ³è¨æ¶ã
ã ã¼ã¢ã®æ³åãæç«ããªããªãã¨ãé ãã½ããã¦ã§ã¢ã¯é ãã¾ã¾ã ãã½ããã¦ã§ã¢æè¡è ã¯ãªã«ããã¹ããï½ãã¹ãã»ã ã¼ã¢æ³åæ代ã®ã³ã³ãã¥ã¼ãã£ã³ã°ï¼å¾ç·¨ï¼ãQCon Tokyo 2016 10æ24æ¥ã«é½å ã§éå¬ãããã¤ãã³ããQCon Tokyo 2016ãã§ãå½ç«æ å ±å¦ç 究æ ã¢ã¼ããã¯ãã£ç§å¦ç 究系 ææ ä½è¤ä¸éæ°ã«ããåºèª¿è¬æ¼ããã¹ãã»ã ã¼ã¢æ³åæ代ã®ã³ã³ãã¥ã¼ãã£ã³ã°ãã¯ãITæ¥çã ãã§ãªã社ä¼çã«ãå½±é¿ãããããã¨èããããã ã¼ã¢ã®æ³åã®éçã¨ãã®å ã«ã¤ãã¦ãå¤ãã®ç¤ºåãä¸ãããã®ã¨ãªãã¾ããã ï¼æ¬è¨äºã¯ããã¾èµ·ãã¦ããã ã¼ã¢ã®æ³åã®éçã¯ã微細åãããé»åã¨çµæ¸æ§ã®éçï½ãã¹ãã»ã ã¼ã¢æ³åæ代ã®ã³ã³ãã¥ã¼ãã£ã³ã°ï¼åç·¨ï¼ãQCon Tokyo 2016ãã®ç¶ãã§ãï¼ ãããã¯ãã§ã¼ã³ãã ã¼ã¢ã®æ³åã®éçã«å½±é¿ãåãã ãã¦ããã®è¬æ¼ã¯å®ã¯ä¸»å¬è ãããã³ã³ãã¥ã¼ã¿ãµã¤ã¨ã³ã¹ãçã¿
åäºä¿®ä¸ãã³ã³ãã¥ã¼ã¿ã¢ã¼ããã¯ãã£ãï¼ã³ãã社ãé»åæ å ±ã¬ã¯ãã£ã¼ã·ãªã¼ãºC-9ï¼ åäºä¿®ä¸ãå®è·µãã³ã³ãã¥ã¼ã¿ã¢ã¼ããã¯ãã£ãï¼ã³ããç¤¾ï¼ æç§æ¸éãããã¾ã
ãããã¯ã¼ã¯æ©å¨ã®å¦çæ§è½ã«ã¤ã㦠ã¹ã¤ãããªã©ã®LANæ©å¨ã®ã«ã¿ãã°ãè¦ã㨠ããã¯ãã¬ã¼ã³ 8.8Gbps ã ã¨ã ã¹ã¤ããã³ã°å¦çè½å 3.6Mpps ãªãã¦æ¸ããã¦ããããã¾ãã ããããããã§æ¸ããã¦ããæ°åãã©ãã»ã©ã®è½åã示ãã¦ããã®ãã£ã¦åããã¾ããï¼ æ®éã«ã¹ã¤ããã使ç¨ãã¦ããã®ã§ããã°ç¹ã«æ°ã«ããªãã¦ã使ãã¦ãã¾ãã®ã§æå¤ã«æ°ã«ãã¦ããªãæ¹ããããããªã®ã§ãããããã¨ããã¨ãã«éè¦ã ã£ãããã¾ãã ä»åã¯ãããã¯ã¼ã¯æ©å¨ã®å¦çè½åã«ã¤ãã¦èª¬æãã¦ããã¾ãã ããã¯ãã¬ã¼ã³ ããã¯ãã¬ã¼ã³å®¹éã¨ã¯ã¹ã¤ããå ¨ä½ã§ã®1ç§éã§å¦çã§ãããã¼ã¿éã表ãã¦ãã¾ãã ã¡ã¼ã«ã«ãã£ã¦ã¯ãã¹ã¤ããã³ã°ãã¡ããªãã¯ãã ã¨ããã¹ã¤ããã³ã°å®¹éããªãã¦ããå ´åãããã¾ãã bps(Bit Per Second)ã®åä½ã§è¡¨ããã¾ãã ããã¯ãã¬ã¼ã³ã¨ã¯ãæ¬æ¥ã¹ã¤ããå é¨ã®ãã¼ã¿ç¨ãã¹ã®ãã¨ã§ã
ä¸å¿ãAsakusaã®ã¢ããã³ãã«ã¬ã³ãã¼ã®ãã¿ã§ãã ããããä»å¾ã®Asakusaã®å¯¾å¿ã«ã¤ãã¦ãç¾ç¶ãè¸ã¾ãã¦ä¸åã¾ã¨ãã¾ãã 1.ããã¯ãã¼ã¿ã®æå ã¾ããç¾ç¶ã®ããã¯ãã¼ã¿ã®ç¾ç¶ã¯ã¡ããã¨è¸ã¾ãã¦ãããããã¨ããã®ã¯ããã¾ã¾ã§ã®åæ£å¦çã®æè¡é©æ°ã¯ãã¯ã©ã¦ãã»ããã¯ãã¼ã¿é¢é£ãä¸å¿ã§é²ãã§ããããã§ãå½ç¶æ¬¡ã®æµãã¯ãã®ãæ´å²ããèæ ®ããªããã°ããã¸ãã¹çãªå ã¯ãªãã§ãããã ã¾ããçµé¨çã«ã¯æ¥æ¬ã§ã®ãããã¯ãã¼ã¿ãã®å®è¡åºç¤ã¨ãã¦ã®å¤§è¦æ¨¡ã¯ã©ã¹ã¿ã¼ã®å±éã¯ã»ã¼å ¨æ» ã«è¿ãã¨æãã¾ããç¹ã«ãæ¥æ¬ã§ã¯PByteãè¶ãããã¼ã¿ã¯ãã®è¾ºã«è»¢ãã£ã¦ãããã®ã§ã¯ããã¾ããããã¡ããä½ç¾å°ã»ä½åå°ãã®ã¯ã©ã¹ã¿ã¼ãæ§æã»éç¨ãã¦ããã¨ãããããã¾ãããããããåæãè¶ããç¨åº¦ã§ããããæ¥æ¬ã®ä¼æ¥æ°ã5ä¸ã¨ãã¦ãã99.9%ã®ä¼æ¥ã¯ãããªã¯ã©ã¹ã¿ã¼ã¯æã£ã¦ãã¾ããããã ããä¼æ¥æ°ãå¤ãã®ã§çµæã¨ãã¦ã®
ä¸æ®çºæ§ã¡ã¢ãªã主役ã«ãªã次ä¸ä»£ãã·ã³ãThe Machineããã¨ãã¥ã¬ã¼ã¿ããªã¼ãã³ã½ã¼ã¹ã§å ¬éãç±³ãã¥ã¼ã¬ããã»ããã«ã¼ãã»ã¨ã³ã¿ã¼ãã©ã¤ãº ç±³ãã¥ã¼ã¬ããã»ããã«ã¼ãã»ã¨ã³ã¿ã¼ãã©ã¤ãºï¼HPEï¼ã¯ãå¾æ¥ã®ã³ã³ãã¥ã¼ã¿ã®ã¢ã¼ããã¯ãã£ãä¸æ°ãã次ä¸ä»£ãã·ã³ãThe Machineããéçºä¸ã§ãã2020å¹´ã«ã¯è£½åã¨ãã¦ãªãªã¼ã¹ããã¨ãã¦ãã¾ãã å¾æ¥ã®ã³ã³ãã¥ã¼ã¿ã¯ãããã»ããµãã¡ã¢ãªãã¹ãã¬ã¼ã¸ãåºæ¬çãªã³ã³ãã¼ãã³ãã¨ãã¦ãã¾ããã³ã³ãã¥ã¼ã¿ã®å¿èé¨ã¨ãã¦ããã»ããµãå¿ è¦ãªã®ã¯å½ç¶ã¨ãã¦ãã¡ã¢ãªã¨ã¹ãã¬ã¼ã¸ãå¿ è¦ãªã®ã¯ãç¾å¨ã¡ã¢ãªã¨ãã¦ä½¿ããã¦ããDRAMã¯é»æºãåããã¨ãã®å 容ã失ã£ã¦ãã¾ããããé»æºãåãã¦ããã¼ã¿ãããã°ã©ã ãä¿åã§ããè¨æ¶è£ ç½®ã¨ãã¦ã¹ãã¬ã¼ã¸ãå¿ è¦ã«ãªãããã§ãã ãThe Machineãã§ã¯é«éãã¤å¤§å®¹éã®æ¬¡ä¸ä»£ä¸æ®çºæ§ã¡ã¢ãªã«ããã¡ã¢ãªã¨ã¹ãã¬ã¼ã¸ã
ããã«ã¡ããããã¾ã§ããä»å¹´ã«å ¥ã£ã¦ããã¢ã¯ãã£ããã£ãã©ãã«ã¼ãäºåå£ãã¾ãã¦ãæ°ããåéã®è£½åã£ã¦è¨è¨ããããé£ãããã ãªã¨ããã¿ãã¿æãä»æ¥ãã®ããã§ãã å æ¥ã社å åå¼·ä¼ã§ Ethernet ã CPU ãªã©ã®è©±ããã¾ãããååã®CPUã«é¢ãã話ã«ç¶ããä»åã®ã¹ã©ã¤ããå¹ åºãæ¹ã«èªãã§ããã ããããªå 容ãã¨æãã¾ããã®ã§ãå ¬éããã¦ããã ããã¨ã«ãã¾ãããååã®ã¹ã©ã¤ããèªãã§ãªãæ¹ã¯ãã§ããã°ãã¡ããèªãã§ããã ãã¦ããã®æ¹ããããç解ãæ·±ã¾ãã®ã§ã¯ãªããã¨æãã¾ãã å¿ãã人ã®ããã«ä¸è¡ã§ã¾ã¨ãã㨠2020年代ã«ã¯ããµã¼ãã®ãããã¯ã¼ã¯ã¤ã³ã¿ã¼ãã§ã¼ã¹ã 40Gbps è¶ ãã¦ãããªäºæ ãã Ethernet ã§ããã ã大éã®ãã±ããããã°ããªããï¼æ¨æºåããã¦ãªãããã©ï¼ Jumbo Frame 使ããªãã¨å³ãããã 2020年代ã«ã¯ãNICããããã¯ããã¤ã¹çãCPUãå
2. ãåã ãã â å·ç° è£è²´ @hktechno o çæ³¢å¤§å¦ ã·ã¹ãã æ å ±å·¥å¦ç ç©¶ç§ ã³ã³ãã¥ã¼ã¿ãµã¤ã¨ã³ã¹å°æ» M1 o ã»ãã¥ãªãã£ï¼ããã°ã©ãã³ã°ã ã£ã³ã 2008 ããã°ã©ãã³ã°ã³ã¼ã¹åå ï§ 2009, 10, 12 OS çµãã¥ã¼ã¿ã¼
ãã¯ã³ã´ããã³åã®ç»åé ä¿¡åãã«FPGAã¨ã³ã¸ãã¢ãåéãããããã¤ã¯ãã½ããã¯BingãFPGAå®è£ ããããBaiduããã£ã¼ãã©ã¼ãã³ã°ã®é«éåã«FPGAãå°å ¥ãããã¨ããªãã ãä¸ã®ä¸æ¥ã«ãã¼ãã¦ã§ã¢ããããªã£ã¦ãããIoTã¨ã¯éãæå³ã§ã éèåéã§ã¯ãã§ã«CPUã§ã¯é ããã¦FPGAã«ããããç§åä½ã®æ ªåå¼ãè¡ããã¦ããã£ã¦è¨äºãæ¸ããã®ã¯2å¹´åã ãã©ãããæ°å¹´ã¯Intelã®CPUã®ã¯ããã¯ããã¾ãä¸ãããªããªã£ã¦ããããFusion-ioãNetezzaã¨ãã£ã大æ御ç¨éã®ãã¤ã¨ã³ã鬼éã¹ãã¬ã¼ã¸ãããã¿ãéããã°ä¸èº«ã¯ãã§ã«FPGAã«ç§»è¡æ¸ã¿ãIBMãæè¿åºããData Engine for NoSQLã¨ãã製åã§ã¯POWER8ããã»ããµã«FPGAãç´ä»ããã¦Redisãé«éåãããããããããã¼ã¿ã»ã³ã¿ã¼ã«ããå ã®è¦ããªãCPUã«ä»£ãã£ã¦FPGAãGPUãå°å ¥ããæ³¢ãæ¼ãå¯ãã¤
ããã«ã¡ã¯ãã¤ã³ãã©ã¹ãã©ã¯ãã£æ¬é¨ã®å¤§å±±è£æ³°ã§ããæè¿è©±é¡ã® WhiteBox ã¹ã¤ããã¨ããã®ããã«ã¦ã§ã¢ã«ã¤ãã¦ã話ãããã¨æãã¾ãã æè»ãª IT ã¤ã³ãã©ãç®æã㦠æã ã«éãã IT ã¤ã³ãã©ã«æºããã¨ã³ã¸ãã¢ã«ã¨ã£ã¦ãã¢ããªã±ã¼ã·ã§ã³ã¬ã¤ã¤ã®äººãã¡ãæãã¢ããªã±ã¼ã·ã§ã³å®è¡ç°å¢ã®æ§ç¯ã»éç¨ã¯ä¸»è¦ãªç®æ¨ã®ä¸ã¤ãã¨æãã¾ãã ã¢ããªã±ã¼ã·ã§ã³å®è¡ç°å¢ã®å½¢æ ã¯æ§ã ã§ãããçªãè©°ãã¦ããã¨ç©ççãªãããã¯ã¼ã¯æ©å¨ã« Ethernet ã±ã¼ãã«ã§æ¥ç¶ãããç©çãµã¼ãã®éåã«ãªãã¾ãããã管ççãªè©±ã«ãªãã¾ãããããããç©çæ©å¨ã¯æ¸ä¾¡åå´ãã¦ããã®ã§ããããçµäºãããããã¯ãµãã¼ããåããã¾ã§ã® 4ï½5 å¹´ã®æéãåãæ©å¨ã使ãç¶ãããã¨ã«ãªãã¾ãã®ã§ãæ©å¨ã®é¸å®ã«ããã¦ã¯é·ãç®ã§è¦ãå¿ è¦ãããã¾ãã ããã«å¯¾ãã¦ãã¢ããªã±ã¼ã·ã§ã³ãã¢ããªã±ã¼ã·ã§ã³ãåãå·»ãç°å¢ã¯æ¥ã ç®ã¾ããããé度ã§
cpuspeed ããªã³ã ã¨.... â ã¯ããã¯ã³ (@hasegaw) 2014, 5æ 29 ããã«ã¦ã§ã¢ã®ã¹ã«ã¼ãããã測ããã¨æã£ãã®ã§ãã cpuspeed ãªã©ã®è¨å®ããããããã£ã¦ãã¾ããã§ããããã çµé¨ä¸ããã¥ã¼ãã³ã°éç¨ã§ããããããªããããªãã©ã¡ã¼ã¿ãæãåºãã¦ã¿ã¾ãã ãã¯ã¼ããã¸ã¡ã³ãã«é¢ããè¨å®ã¯ãªãã«ãã UEFIãBIOSã«ã¯ãã¯ã¼ããã¸ã¡ã³ãè¨å®ãããã¾ãããããããç¡å¹ã«ããã¨ããã»ããµãªã©ãç¡æ¡ä»¶ã§å®æ ¼ã¯ããã¯ã§èµ°ãç¶ãã¾ãããã¼ã¯æ§è½ãé«ãããç¬çºåãä¸ããããã«ã¯ãã¯ã¼ããã¸ã¡ã³ãã¯ãªãã«ãã¾ããå½ç¶ãªãããã¼ã¹ã®æ¶è²»é»åããã¡ã³ã®é¨é³ã¯å¢ãã¾ããããããã«ãããããã¼ã¯æ§è½ã®åä¸ãè¦è¾¼ãã¾ãã Hyper Threading ã¯ã¬ã¤ãã³ã·ã¼ã¨ã¹ã«ã¼ãããã®ãã¬ã¼ããªã Hyper Threadingã¯ããã¶ããã³ã¢å ã§ãã¤ãã©ã¤ã³ãåãåããã
2.1. signal 11 ã£ã¦ã©ãããæå³ãªã®?質å signal 11 ã£ã¦ã©ãããæå³ãªã®? çã signal 11ãæ£å¼ã«ã¯ "segmentation fault" ã¨ãã¦ç¥ããã¦ããç¾è±¡ã¯ã ããã°ã©ã ããå²ãå½ã¦ããã¦ããªãã¡ã¢ãªé åã«ã¢ã¯ã»ã¹ããã¨ãã æå³ãªãã ãã ãããããããªããèªä½ã®ããã°ã©ã ã製ä½ä¸ãªãã ãã®ããã°ã©ã ãåå ã§èµ·ããã¨ããã®ãæããããã¡ãªãã ã ã§ãããã® FAQ ã§ã¯ãã以å¤ã§èµ·ããå¯è½æ§ã«å°å¿µãããã¨æãã ã¨åºã¦ã¯ã©ãã·ã¥ãã¾ãã ã³ã³ãã¤ã©ã®ä½ãã¾ããã®ã§ãããã? ã³ã³ãã¤ã©ã®ã©ã®ãã¼ã¸ã§ã³ãå¿ è¦ãªã®ã§ãããã? ã«ã¼ãã«ã«ã©ããä¸å ·åãããã®ã§ãããã? çã ãããããã³ã³ãã¤ã©ã«ããã«ã¼ãã«ã«ããã ã使ãã®ã½ããã¦ã§ã¢ç°å¢ã«ã¯ä½ãæªãã¨ããã¯ããã¾ããã ãã¼ãã¦ã§ã¢ã¨ã®é¢ä¿ã大ãã«ããããã§ãã ã¾ããããªé¨åã¯ãããã
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}