CXL£¨Compute Express Link£©£¬£¬£¬£¬£¬£¬£¬ÊÇÒ»ÖÖȫеÄ×°±¸»¥ÁªÊÖÒÕ±ê×¼£¬£¬£¬£¬£¬£¬£¬ÒѳÉΪҵ½çÍ»ÆÆÄÚ´æÆ¿¾±µÄ´æ´¢ÐÂÊÖÒÕ¡£¡£¡£¡£¡£¡£¡£²»µ«ÓÃÓÚÄÚ´æÈÝÁ¿/´ø¿íÀ©Õ¹£¬£¬£¬£¬£¬£¬£¬»¹ÓÃÓÚÒì¹¹»¥Áª£¬£¬£¬£¬£¬£¬£¬Êý¾ÝÖÐÐÄ×ÊÔ´³Ø½âñî¡£¡£¡£¡£¡£¡£¡£ÔÚÊý¾ÝÖÐÐÄ£¬£¬£¬£¬£¬£¬£¬CXLÊÖÒÕ¿ÉÒÔ½«²î±ðµÄÅÌËãºÍ´æ´¢×ÊÔ´¾ÙÐл¥Áª£¬£¬£¬£¬£¬£¬£¬Óøü¸ßµÄϵͳÐÔÄܺÍЧÂÊÀ´½â¾öÊý¾ÝÖÐÐÄÄÚ´æÎÊÌâ¡£¡£¡£¡£¡£¡£¡£

CXLÊÖÒյķºÆð

ÔÆÅÌËã¡¢´óÊý¾ÝÆÊÎö¡¢È˹¤ÖÇÄÜ¡¢»úеѧϰµÈÓ¦ÓõĿìËÙÉú³¤´øÀ´Êý¾ÝÖÐÐÄ´æ´¢ºÍ´¦Öóͷ£Êý¾ÝÐèÇóµÄ±¬Õ¨ÐÔÔöÌí¡£¡£¡£¡£¡£¡£¡£¹Å°åDDRÄÚ´æ½Ó¿Ú±£´æ×Ü´ø¿í¡¢Ã¿½¹µãƽ¾ù´ø¿íºÍÈÝÁ¿¿ÉÀ©Õ¹ÐÔÊÜÏÞµÈÎÊÌâ¡£¡£¡£¡£¡£¡£¡£ÓÈÆäÔÚÊý¾ÝÖÐÐÄ£¬£¬£¬£¬£¬£¬£¬ÊÜÏÞÓÚ´ó×ÚÄÚ´æÎÊÌ⣬£¬£¬£¬£¬£¬£¬ÐµÄÄÚ´æ½Ó¿ÚÊÖÒÕCXL·ºÆ𡣡£¡£¡£¡£¡£¡£

ÔÚÊý¾ÝÖÐÐÄ£¬£¬£¬£¬£¬£¬£¬CPUÄÚ´æÊǽôñîºÏ¹Øϵ£¬£¬£¬£¬£¬£¬£¬Ã¿´úCPU¶¼½ÓÄÉеÄÄÚ´æÊÖÒÕʵÏÖ¸ü¸ßµÄÈÝÁ¿ºÍ´ø¿í¡£¡£¡£¡£¡£¡£¡£×Ô2012ÄêÒÔÀ´£¬£¬£¬£¬£¬£¬£¬½¹µãÊýĿѸËÙÔöÌí£¬£¬£¬£¬£¬£¬£¬µ«Ã¿¸öÄں˵ÄÄÚ´æ´ø¿íºÍÈÝÁ¿²¢Î´ÏìÓ¦ÔöÌí£¬£¬£¬£¬£¬£¬£¬·´¶øϽµ¡£¡£¡£¡£¡£¡£¡£ÕâÖÖÇ÷Êƽ«ÔÚδÀ´¼ÌÐø£¬£¬£¬£¬£¬£¬£¬ÄÚ´æÈÝÁ¿ÔöÌíËÙÂÊÒ²¿ìÓÚÄÚ´æ´ø¿í£¬£¬£¬£¬£¬£¬£¬Õâ¶ÔϵͳÐÔÄÜÓ°ÏìÖش󡣡£¡£¡£¡£¡£¡£

±ðµÄ£¬£¬£¬£¬£¬£¬£¬Ö±Á¬DRAMºÍSSDÔÚÑӳٺͱ¾Ç®·½ÃæµÄÖØ´ó²î±ð£¬£¬£¬£¬£¬£¬£¬Ê¹µÃÌÚ¹óµÄÄÚ´æ×ÊÔ´ÍùÍùʹÓÃÂʺܵÍ£¬£¬£¬£¬£¬£¬£¬¹ýʧµÄÅÌËãºÍÄÚ´æ±ÈÀýºÜÈÝÒ×Ôì³ÉÄÚ´æÏÐÖã¨Stranded£©×â²»³öÈ¥µÄÕ÷Ï󡣡£¡£¡£¡£¡£¡£Êý¾ÝÖÐÐÄÓªÒµ×÷ΪȫÇò×ÊÔ´×î÷缯µÄÐÐÒµÖ®Ò»£¬£¬£¬£¬£¬£¬£¬µÍʹÓÃÂÊÊÇÒ»¸öºÜ´óµÄ¼ç¸º¡£¡£¡£¡£¡£¡£¡£Î¢ÈíÌåÏÖ£¬£¬£¬£¬£¬£¬£¬50%µÄ·þÎñÆ÷×ܳÉÔ­À´×ÔDRAM¡£¡£¡£¡£¡£¡£¡£Ö»¹ÜDRAM±¾Ç®ºÜ¸ß£¬£¬£¬£¬£¬£¬£¬µ«25%µÄDRAMÄÚ´æÕÕ¾ÉÆÌÕÅÁË¡£¡£¡£¡£¡£¡£¡£ÏÂͼÀ´×ÔMetaÄÚ²¿µÄͳ¼ÆÊý¾ÝÒ²ÏÔʾÀàËÆÕ÷Ï󡣡£¡£¡£¡£¡£¡£Äڴ汾Ǯռϵͳ×ܱ¾Ç®µÄ±ÈÀýÏÖʵÉÏÔÚÒ»Ö±ÉÏÉý£¬£¬£¬£¬£¬£¬£¬ÏµÍ³µÄÖ÷Òª±¾Ç®ÒѾ­Äð³ÉÊÇÄÚ´æ¶ø²»ÊÇCPU×Ô¼º£¬£¬£¬£¬£¬£¬£¬Ê¹ÓÃCXLÄÚ´æ×ÊÔ´³Ø¿ÉÒÔÓÐÓøÄÉÆÕâÒ»ÎÊÌ⣬£¬£¬£¬£¬£¬£¬Í¨¹ý¸øϵͳ¶¯Ì¬·ÖÅÉÄÚ´æ×ÊÔ´¿ÉÒÔÓÅ»¯ÅÌËãºÍÄÚ´æ±ÈÀý¹ØϵÓÅ»¯TCO¡£¡£¡£¡£¡£¡£¡£

²î±ðÄÚ´æÊÖÒÕµÄÑӳٸſö

ÄÚ´æ´ø¿í/ÈÝÁ¿Ëæʱ¼äÍÆÒÆÔöÌí

²î±ð´úÄÚ±£´æ»ú¼ÜTCO/¹¦ºÄÕ¼±È

 Microsoft AzureÄÚ´æÏÐÖÃ

»ùÓڹŰåÄÚ´æÎÊÌ⣬£¬£¬£¬£¬£¬£¬Òµ½çÒ»Ö±ÔÚ×·Çó½ÓÄÉеÄÄÚ´æ½Ó¿ÚÊÖÒÕºÍϵͳ¼Ü¹¹¡£¡£¡£¡£¡£¡£¡£

ÔÚÄÚ´æ½Ó¿ÚÊÖÒÕ·½Ã棬£¬£¬£¬£¬£¬£¬PCI-Express(peripheral  component interconnect express)³ÉΪÊ×Ñ¡¡£¡£¡£¡£¡£¡£¡£PCIeÊÇ´®ÐÐ×ÜÏߣ¬£¬£¬£¬£¬£¬£¬Ê¹ÓÃPCIe´ÓÐÔÄܺÍÈí¼þµÄ½Ç¶ÈÀ´¿´²î±ð×°±¸Ö®¼äͨѶµÄ¿ªÏúÏà¶Ô½Ï¸ß£¬£¬£¬£¬£¬£¬£¬µ«ºÃÐÂÎÅÊÇ£¬£¬£¬£¬£¬£¬£¬PCIe½«Æ¾Ö¤ÍýÏëÔÚ2023Äêµ×Íê³É7.0°æµÄÅú×¼£¬£¬£¬£¬£¬£¬£¬Ìṩ¸ß´ï256GB/s µÄËÙÂÊ£»£»£»£»£»£»£»£»Õâ¾àÀë16 GT/sËÙÂʵÄ4.0°æPCIeÎÊÊÀ»¹²»µ½Á½Äê¡£¡£¡£¡£¡£¡£¡£¼ÓËÙPCIeÉú³¤À¶Í¼µÄÖ÷ÒªÍÆÊÖÊÇÔƶËÔËËãÐèÇ󣻣»£»£»£»£»£»£»¶øPCIeÒÔÍùÊÇÿ3~4Ä꣬£¬£¬£¬£¬£¬£¬ÉõÖÁÊÇ7Äê»á½«Êý¾Ý´«ÊäËÙÂÊÌáÉýÒ»±¶¡£¡£¡£¡£¡£¡£¡£

PCIe vs DDR ´ø¿í±ÈÕÕ

ϵͳ¼Ü¹¹ÔòÊÇÀú¾­¼¸´ú½ø»¯¸üµü¡£¡£¡£¡£¡£¡£¡£×î³õΪʵÏÖ¶à¸ö·þÎñÆ÷¹²Ïí×ÊÔ´³ØµÄʵÑ飬£¬£¬£¬£¬£¬£¬Í¨³£Ê¹ÓÃRDMAÊÖÒÕÔÚͨÓÃÒÔÌ«Íø»òInfiniBandÉÏÃæʵÏÖ£¬£¬£¬£¬£¬£¬£¬ÕâЩͨѶҪÁìͨ³£Ê±ÑÓ¸ü¸ß£¨ÍâµØÄڴ漸ʮÄÉÃëvsRDMA¼¸¸ö΢Ã룩ºÍ¸üµÍµÄ´ø¿í£¬£¬£¬£¬£¬£¬£¬²¢ÇÒÒ²ÎÞ·¨ÌṩÄÚ´æÒ»ÖÂÐÔµÈÒªº¦¹¦Ð§¡£¡£¡£¡£¡£¡£¡£

ÔÚ40GbpsÁ´Â·´ø¿íÍøÂç¿ÉʵÏÖµÄÍù·µÑÓ³Ù£¨×ܼƣ©
ÒÔ¼°µ¼ÖÂÍù·µÑÓ³ÙÔöÌíµÄ×é¼þ£¨Ê¹ÓÃ100Gbps¿É½«Êý¾Ý´«ËÍïÔÌ­0.5us£©

2010Ä꣬£¬£¬£¬£¬£¬£¬CCIX³ÉΪDZÔÚµÄÐÐÒµ±ê×¼¡£¡£¡£¡£¡£¡£¡£ËüµÄÇý¶¯ÒòËØÊÇÐèÒª±ÈÄ¿½ñ¿ÉÓÃÊÖÒÕ¸ü¿ìµÄ»¥Á¬£¬£¬£¬£¬£¬£¬£¬²¢ÇÒÐèÒª»º´æÒ»ÖÂÐÔ£¬£¬£¬£¬£¬£¬£¬ÒÔ±ãÔÚÒì¹¹¶à´¦Öóͷ£Æ÷ϵͳÖиü¿ìµØ»á¼ûÄÚ´æ¡£¡£¡£¡£¡£¡£¡£CCIX¹æ·¶µÄ×î´óÓÅÊÆÊÇËü½¨ÉèÔÚPCI Express¹æ·¶µÄ»ù´¡Ö®ÉÏ£¬£¬£¬£¬£¬£¬£¬µ«ËüÒòȱ·¦Òªº¦ÐÐÒµÖ§³Ö£¬£¬£¬£¬£¬£¬£¬´ÓδÕæÕýÌÚ·É¡£¡£¡£¡£¡£¡£¡£

¶øCXLÒÀÍÐÏÖÓеÄPCIe5.0µÄÎïÀí²ãºÍµçÆø²ã±ê×¼¼°Éú̬ϵͳ£¬£¬£¬£¬£¬£¬£¬ÎªÄÚ´æ¼ÓÔØ/´æ´¢£¨load/Store)ÊÂÎñÔöÌí»º´æÒ»ÖÂÐԺ͵ÍʱÑÓÌØÕ÷¡£¡£¡£¡£¡£¡£¡£ÓÉÓÚ½¨ÉèÁËÐÐÒµÖдó´ó¶¼Ö÷Òª¼ÓÈëÕ߶¼Ö§³ÖµÄÐÐÒµ±ê׼ЭÒ飬£¬£¬£¬£¬£¬£¬CXLʹÏòÒì¹¹ÅÌËãµÄ¹ý¶É³ÉΪ¿ÉÄܲ¢»ñµÃÆÕ±éµÄÒµ½çÖ§³Ö¡£¡£¡£¡£¡£¡£¡£AMDµÄGenoaºÍIntelµÄSapphireRapids½«ÔÚ2022Äêβ/2023ÄêÍ·Ö§³ÖCXL1.1¡£¡£¡£¡£¡£¡£¡£ÖÁ´Ë£¬£¬£¬£¬£¬£¬£¬CXL³ÉΪҵ½çºÍѧÊõ½ç×îÓÐǰ;½â¾öÕâÒ»ÎÊÌâµÄÊÖÒÕÖ®Ò»¡£¡£¡£¡£¡£¡£¡£

CXL¹¹½¨ÔÚPCIeÎïÀí²ãÉÏ£¬£¬£¬£¬£¬£¬£¬¾ß±¸ÏÖÓÐPCIeÎïÀí¼°µçÆø½Ó¿ÚÌØÕ÷£¬£¬£¬£¬£¬£¬£¬Ìṩ¸ß´ø¿í£¬£¬£¬£¬£¬£¬£¬¸ß¿ÉÀ©Õ¹ÐÔÌصã¡£¡£¡£¡£¡£¡£¡£ÁíÍâCXLÓë¹Å°åµÄPCIExpress£¨PCIe£©»¥Á¬Ïà±È¾ßÓиüµÍµÄʱÑÓ£¬£¬£¬£¬£¬£¬£¬²¢ÇÒ»¹Ìṩһ×éÆæÒìµÄй¦Ð§Ê¹CPUÄܹ»ÒÔ¾ßÓмÓÔØ/´æ´¢(load/store)ÓïÒåµÄ¸ßËÙ»º´æÒ»Ö£¨Cache-Coherent£©·½·¨ÓëÍâΧװ±¸£¨ÄÚ´æÀ©Õ¹ºÍ¼ÓËÙÆ÷¼°ÆäÅþÁ¬µÄ´æ´¢Æ÷£©Í¨Ñ¶¡£¡£¡£¡£¡£¡£¡£¸ÃÊÖÒÕ¼á³ÖCPUÄÚ´æ¿Õ¼äºÍ¸½¼Ó×°±¸ÉÏÄÚ´æµÄÒ»ÖÂÐÔ£¬£¬£¬£¬£¬£¬£¬ÔÊÐí×ÊÔ´¹²Ïí£¬£¬£¬£¬£¬£¬£¬´Ó¶ø»ñµÃ¸ü¸ßÐÔÄÜ£¬£¬£¬£¬£¬£¬£¬½µµÍÈí¼þÕ»ÖØ´óÐÔ¡£¡£¡£¡£¡£¡£¡£ÓëÄÚ´æÏà¹ØµÄ×°±¸À©Õ¹ÊÇCXLÖ÷ҪĿµÄ³¡¾°Ö®Ò»¡£¡£¡£¡£¡£¡£¡£

CXLÒÀÍÐÏÖÓÐPCIeÎïÀí¼°µçÆø½Ó¿ÚÌØÕ÷

CXL/PCIeʵÏÖÄÚ´æ×ÊÔ´À©Õ¹/³Ø

CXLÊÖÒÕµÄÔ­Àí

CXLÏÖʵÉÏ°üÀ¨ÈýÖÖЭÒ飬£¬£¬£¬£¬£¬£¬µ«²¢·ÇËùÓÐЭÒ鶼ÊÇÑÓ³ÙµÄÁ鵤ÃîÒ©¡£¡£¡£¡£¡£¡£¡£CXL.io£¨ÔËÐÐÔÚPCIe×ÜÏßµÄÎïÀí²ãÉÏ£©ÈÔÈ»¾ßÓÐÓëÒÔÍùÏàͬÀàÐ͵ÄÑÓ³Ù£¬£¬£¬£¬£¬£¬£¬µ«ÆäËûÁ½¸öЭÒ飬£¬£¬£¬£¬£¬£¬CXL.cacheºÍCXL.mem½ÓÄÉÁ×Æü¿ìµÄ·¾¶£¬£¬£¬£¬£¬£¬£¬ïÔÌ­ÁËÑÓ³Ù¡£¡£¡£¡£¡£¡£¡£´ó´ó¶¼CXLÄÚ´æ¿ØÖÆÆ÷»áÔöԼĪ100-200ÄÉÃëµÄÑÓ³Ù£¬£¬£¬£¬£¬£¬£¬ÌØÁíÍâÖØ׼ʱÆ÷»áÔöÌí»òÆƷѼ¸Ê®ÄÉÃ룬£¬£¬£¬£¬£¬£¬Ïêϸȡ¾öÓÚ×°±¸ÓëCPUµÄ¾àÀë¡£¡£¡£¡£¡£¡£¡£

CXLÒýÈëʱÑÓÓëNUMA¿¿½ü

CXL/PCIeÀ©Õ¹ÄÚ´æϵͳ¼Ü¹¹

CXLÔÚPCIePHY²ã¸´Óòî±ðµÄЭÒ飬£¬£¬£¬£¬£¬£¬CXL1.0/1.1¹æ·¶¸½´ø3¸öЭÒéÖ§³Ö-CXL.io¡¢CXL.cacheºÍCXL.mem£¬£¬£¬£¬£¬£¬£¬´ó´ó¶¼CXL×°±¸½«Ê¹ÓÃCXL.io¡¢CXL.cacheºÍCXL.memµÄ×éºÏ¡£¡£¡£¡£¡£¡£¡£CXL.io ʹÓÃÓë PCIe ÏàͬµÄÊÂÎñ²ãÊý¾Ý°ü (Transaction Layer Packet, TLP)ºÍÊý¾ÝÁ´Â·²ãÊý¾Ý°ü (DLLP)¡£¡£¡£¡£¡£¡£¡£TLP/DLLPÁýÕÖÔÚCXL flitµÄÓÐÓøºÔز¿·ÖÉÏ¡£¡£¡£¡£¡£¡£¡£CXL½ç˵ÁË¿ç²î±ðЭÒéÕ»ÌṩËùÐè·þÎñÖÊÁ¿(QoS)µÄÕ½ÂÔ¡£¡£¡£¡£¡£¡£¡£PHY¼¶±ðµÄЭÒ鸴ÓÿÉÈ·±£CXL.cacheºÍCXL.memoryµÈÑÓ³ÙÃô¸ÐЭÒé¾ßÓÐÓë±¾»úCPUµ½CPU¶Ô³ÆÒ»ÖÂÐÔÁ´Â·ÏàͬµÄµÍÑÓ³Ù¡£¡£¡£¡£¡£¡£¡£CXLΪÕâЩÑÓ³ÙÃô¸ÐЭÒé½ç˵ÁËÒý½Åµ½Òý½ÅÏìӦʱ¼äµÄÉÏÏÞ£¬£¬£¬£¬£¬£¬£¬ÒÔÈ·±£Æ½Ì¨ÐÔÄܲ»»áÒòʵÏÖÒ»ÖÂÐÔºÍÄÚ´æÓïÒåµÄ²î±ð×°±¸Ö®¼äµÄÑÓ³Ù²î±ð½Ï´ó¶øÊܵ½µ¹ÔËÓ°Ïì¡£¡£¡£¡£¡£¡£¡£

• CXL.io¿ÉÒÔ±»ÒÔΪÊDZê×¼PCIeµÄÒ»¸öÀàËƵ«Ë¢Ðµİ汾¡£¡£¡£¡£¡£¡£¡£
  
  ÊÇÓÃÓÚ³õʼ»¯¡¢Á´½Ó¡¢×°±¸·¢Ã÷ºÍö¾ÙÒÔ¼°×¢²á»á¼ûµÄЭÒé¡£¡£¡£¡£¡£¡£¡£ËüΪI/O×°±¸Ìṩ½Ó¿Ú£¬£¬£¬£¬£¬£¬£¬ÀàËÆÓÚPCIeGen5¡£¡£¡£¡£¡£¡£¡£CXL×°±¸Ò²±ØÐèÖ§³ÖCXL.io¡£¡£¡£¡£¡£¡£¡£

• CXL.cacheÊǽç˵Ö÷»ú£¨Í¨³£ÊÇCPU£©ºÍ×°±¸£¨ÀýÈçCXLÄÚ´æÄ£¿£¿£¿£¿£¿é»ò¼ÓËÙÆ÷£©Ö®¼ä½»»¥µÄЭÒé¡£¡£¡£¡£¡£¡£¡£

ÓÉÓÚÇ徲ʹÓÃÆäÍâµØ¸±±¾£¬£¬£¬£¬£¬£¬£¬CXL.cacheÔÊÐíCXL×°±¸Á¬¹áµØ»á¼û»ººÍ´æÖ÷»úCPUµÄÄڴ棬£¬£¬£¬£¬£¬£¬¿ÉÒÔ°ÑÕâÏëÏó³ÉÒ»¸öGPUÖ±½Ó´ÓCPUµÄÄÚ´æÖлº´æÊý¾Ý¡£¡£¡£¡£¡£¡£¡£

• CXL.memÊÇΪÖ÷»ú´¦Öóͷ£Æ÷£¨Í¨³£ÊÇCPU£©ÌṩʹÓüÓÔØ/´æ´¢ÏÂÁîÖ±½Ó»á¼û×°±¸¸½¼ÓÄÚ´æµÄЭÒé¡£¡£¡£¡£¡£¡£¡£

ÔÊÐíÖ÷»úCPUÁ¬¹áµØ»á¼û×°±¸µÄÄڴ棬£¬£¬£¬£¬£¬£¬½«´ËÊÓΪCPUʹÓÃרÓô洢¼¶ÄÚ´æ×°±¸»òʹÓÃGPU/¼ÓËÙÆ÷Éè±¹ØÁ¬ÄÄÚ´æ¡£¡£¡£¡£¡£¡£¡£

´Ó×óÏòÓÒÒÀ´ÎÊÇCXLType1¡¢CXLType3¡¢CXLType2

CXL 2.0ÔöÌíÁ˶ÔÄÚ´æ³ØºÍCXL½»Á÷µÄÖ§³Ö£¬£¬£¬£¬£¬£¬£¬ÔÊÐíÖÚ¶àÖ÷»úºÍ×°±¸ËùÓÐÁ´½Ó²¢Ï໥ͨѶ£¬£¬£¬£¬£¬£¬£¬´Ó¶øʹÅþÁ¬ÔÚCXLÍøÂçÉϵÄ×°±¸ÊýÄ¿ÏÔ×ÅÔöÌí¡£¡£¡£¡£¡£¡£¡£¶ą̀Ö÷»ú¿ÉÒÔÅþÁ¬µ½½»Á÷»ú£¬£¬£¬£¬£¬£¬£¬È»ºó½«½»Á÷»úÅþÁ¬µ½ÖÖÖÖ×°±¸£¬£¬£¬£¬£¬£¬£¬ÈôÊǸÃCXL×°±¸ÊǶàÍ·µÄ²¢ÅþÁ¬µ½¶à¸öÖ÷»úµÄ¸ù¶Ë¿Ú£¬£¬£¬£¬£¬£¬£¬ÔòÒ²¿ÉÒÔÔÚûÓн»Á÷»úµÄÇéÐÎÏÂʵÏÖ¡£¡£¡£¡£¡£¡£¡£SLD£¨µ¥¸öÂß¼­×°±¸£©Êǵ¥¸öÖ÷»ú»®·ÖʹÓòî±ðÄÚ´æ³Ø£¬£¬£¬£¬£¬£¬£¬MLD£¨¶à¸öÂß¼­×°±¸£©Ö¼ÔÚñîºÏ¶à¸öÖ÷»úÒÔ·ÖÏíͳһÎïÀíÄÚ´æ³Ø¡£¡£¡£¡£¡£¡£¡£

ÂþÑÜʽÄÚ´æ×ÊÔ´ÍøÂ罫Óɽṹ¹ÜÀíÆ÷£¨FabricManager£©ÈÏÕæ·ÖÅÉÄÚ´æ¼°×°±¸±àÅÅ£¬£¬£¬£¬£¬£¬£¬ËüÏ൱ÓÚ¿ØÖÆƽÃæ»òЭµ÷Æ÷£¬£¬£¬£¬£¬£¬£¬Î»ÓÚµ¥¶ÀµÄоƬÉÏ»ò½»Á÷»úÖУ¬£¬£¬£¬£¬£¬£¬Í¨³£²»ÐèÒª¸ßÐÔÄÜ£¬£¬£¬£¬£¬£¬£¬ÓÉÓÚ²»½Ó´¥Êý¾ÝÃæ¡£¡£¡£¡£¡£¡£¡£½á¹¹¹ÜÀíÆ÷£¨FabricManager£©ÌṩÓÃÓÚ¿ØÖƺ͹ÜÀí¸ÃϵͳµÄ±ê×¼API£¬£¬£¬£¬£¬£¬£¬¿ÉÒÔʵÏÖϸÁ£¶ÈµÄ×ÊÔ´·ÖÅÉ¡¢ÈȲå°ÎºÍ¶¯Ì¬À©ÈÝÔÊÐíÓ²¼þÔÚ¸÷¸öÖ÷»úÖ®¼ä¶¯Ì¬·ÖÅɺÍתÒÆ£¬£¬£¬£¬£¬£¬£¬ÎÞÐèÈκÎÖØÆô¡£¡£¡£¡£¡£¡£¡£½«ËùÓÐÕâЩÍŽáÔÚÒ»Æ𣬣¬£¬£¬£¬£¬£¬Î¢Èí±¨¸æÏÔʾ½ÓÄÉCXL·½·¨ÊµÏÖÄÚ´æ×ÊÔ´³ØÕûÌå¿ÉïÔÌ­10%ÄÚ´æÐèÇ󣬣¬£¬£¬£¬£¬£¬½ø¶ø½µµÍ5%µÄ×Ü·þÎñÆ÷±¾Ç®µÄDZÁ¦¡£¡£¡£¡£¡£¡£¡£

CXL 2.0ÄÚ´æ×ÊÔ´³Ø£¨Switch vs Directconnectģʽ£©

CXLÊÖÒÕµÄÉú³¤

CXLÉú³¤ÊÆÍ·Ç¿¾¢£¬£¬£¬£¬£¬£¬£¬ÈýÐÇ¡¢SKº£Á¦Ê¿¡¢Marvell¡¢Rambus¡¢ÈýÐÇ¡¢AMDµÈ´ó³§ÃǵĽṹҲÔÚÒ»Ö±¼ÓËÙ¡£¡£¡£¡£¡£¡£¡£¹«ÓÐÔƹ©Ó¦ÉÌÔÚÄÚµÄËùÓг¬´ó¹æÄ£ÆóÒµ¶¼×îÏÈʵÑéÒÀÀµCXLÅþÁ¬ÄÚ´æ³ØÀ´¸ÄÉÆÄÚ´æÏÐÖ㬣¬£¬£¬£¬£¬£¬¶¯Ì¬ÎÞаÔöÌí´ø¿íºÍÈÝÁ¿µÄÎÊÌâ¡£¡£¡£¡£¡£¡£¡£µ«Ä¿½ñûÓÐÌ«¶àÓÃÓÚAPPʹÓÃÍâµØ/Íⲿ»ìÏý×ÊÔ´³ØµÄ¶à¼¶ÄÚ´æµ÷Àí¹ÜÀí¼à¿ØÊÖÒÕ£¬£¬£¬£¬£¬£¬£¬Òò´ËÔÆ·þÎñÉÌÈôÊÇ¿ÌÒâ´ó¹æģʹÓûùÓÚCXLÊÖÒÕµÄ×ÊÔ´³Øϵͳ£¬£¬£¬£¬£¬£¬£¬ÒªÃ´×Ô¼º½¨£¬£¬£¬£¬£¬£¬£¬ÒªÃ´µÃÑ°ÕÒºÏÊʵÄϵͳÈíÓ²¼þ¹©Ó¦ÉÌ¡£¡£¡£¡£¡£¡£¡£Õâ·½Ãæ΢Èí¡¢MetaµÈÖ÷ÒªÔÆ·þÎñÉÌÒѾ­×ßµ½Ç°Ãæ¡£¡£¡£¡£¡£¡£¡£

΢ÈíµÄPond¼Æ»®Ê¹ÓûúеѧϰÅжÏÆÊÎöÐé»úÊÇ·ñÊÇʱÑÓÃô¸ÐÒÔ¼°²»±»Ê¹ÓõĶuntouched£©ÄÚ´æ¾Þϸ£¬£¬£¬£¬£¬£¬£¬²¢ÓÉ´ËÀ´Åжϵ÷ÀíVMÔÚºÏÊʵÄÍâµØ»òCXLÔ¶¶ËÄÚ´æλÖ㬣¬£¬£¬£¬£¬£¬ÅäºÏÐÔÄܼà¿Øϵͳһֱµ÷½âǨáã¡£¡£¡£¡£¡£¡£¡£

 Î¢ÈíPond¼Æ»®¿ØÖÆƽÃæÊÂÇéÁ÷³Ì

£¨A) µÄVM µ÷Àí³ÌÐòʹÓûùÓÚ ML µÄÕ¹ÍûÀ´Ê¶±ðÑÓ³ÙÃô¸ÐµÄÐéÄâ»ú¼°Æä¿ÉÄÜδ´¥¼°µÄÄÚ´æÁ¿¾öÒéÐéÄâ»úµÄ°²ÅÅ

£¨B) ¼à¿ØÈôÊÇ·þÎñÖÊÁ¿ (QoS) ²»Öª×㣬£¬£¬£¬£¬£¬£¬µ÷ÀíǨáã¿ØÖƹÜÀíÆ÷£¨Mitigation Manager£©»áÖØÐÂÉèÖÃÐéÄâ»ú

×÷ΪÖÇËãÖÐÐÄÍøÂ罨ÉèÕߣ¬£¬£¬£¬£¬£¬£¬stake¹ÙÍøÍøÂçÖÂÁ¦ÓÚΪ¿Í»§ÌṩÁ¢ÒìµÄ²úÆ·¼Æ»®ºÍ·þÎñ£¬£¬£¬£¬£¬£¬£¬Íƶ¯ÐÐÒµÉú³¤ºÍÁ¢Ò죬£¬£¬£¬£¬£¬£¬Èÿͻ§ÓëδÀ´¸üϸÃܵØÅþÁ¬¡£¡£¡£¡£¡£¡£¡£stake¹ÙÍøÍøÂ罫һÁ¬Á¢Ò죬£¬£¬£¬£¬£¬£¬ÒýÁìÖÇËãʱ´úµÄÍøÂçÉú³¤³±Á÷¡£¡£¡£¡£¡£¡£¡£

²Î¿¼ÎÄÏ×£º

TPP: Transparent Page Placement for CXL-Enabled Tiered-Memory

Pond: CXL-Based Memory Pooling Systems for Cloud Platforms

Demystifying CXL Memory with Genuine CXL-Ready Systems and Devices

Compute Express Link™ Specification 3.0 whitepaper

Design and Analysis of CXL Performance Models for Tightly-Coupled Heterogeneous Computing

Memory Disaggregation: Advances and Open Challenges

Network Requirements for Resource Disaggregation

A Case for CXL-Centric Server Processors