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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) NAFS : NUMA ½Ã½ºÅÛ¿¡¼­ Áö¿ª Á¢±ÙÀ» ÃÖ´ëÈ­Çϱâ À§ÇÑ ½ºÅÃÄ¿ºí ÆÄÀϽýºÅÛ
¿µ¹®Á¦¸ñ(English Title) NAFS : Stackable Filesystem for Maximizing Local Access in a NUMA System
ÀúÀÚ(Author) ÇϽÂÁØ   ¿ìÈ£ºó   ¼­ÀǼº   ³²¹ü¼®   Seungjun Ha   Hobin Woo   Euiseong Seo   Beomseok Nam  
¿ø¹®¼ö·Ïó(Citation) VOL 48 NO. 06 PP. 0612 ~ 0617 (2021. 06)
Çѱ۳»¿ë
(Korean Abstract)
Intel Optane DC Persistent ¸Þ¸ð¸®´Â DRAM¿¡ °¡±î¿î ÀÀ´ä¼Óµµ¸¦ º¸À̸鼭 SSD µî ºí·Ï Àåġó·³ µ¥ÀÌÅÍÀÇ ¿µ±¸ ÀúÀåÀÌ °¡´ÉÇÑ Â÷¼¼´ë Çϵå¿þ¾îÀÌ´Ù. ±×·¯³ª Optane DC´Â DIMM¿¡ ÀåÂøµÇ±â ¶§¹®¿¡ ±âÁ¸ ºí·Ï ÀåÄ¡¿¡¼­ ¹ß»ýÇÏÁö ¾Ê´ø NUMA È¿°ú·Î ÀÎÇÑ ¼º´É °¨¼Ò°¡ ¹ß»ýÇÑ´Ù. ÀÌ ¶§¹®¿¡ ¸ÖƼ ¾²·¹µå I/O ÀÀ¿ë¿¡¼­ ¾²·¹µå°¡ µ¿ÀÛÇÏ´Â CPU¿¡ µû¶ó¼­ I/O ¼º´ÉÀÌ Â÷À̳­´Ù. º» ³í¹®¿¡¼­´Â À̸¦ ÇØ°áÇϱâ À§ÇÑ »õ·Î¿î ½ºÅÃÄ¿ºí ÆÄÀÏ ½Ã½ºÅÛÀÎ NUMA-Aware Filesystem(NAFS)À» Á¦¾ÈÇÑ´Ù. NAFS´Â ÆÄÀÏÀ» ƯÁ¤ ¼¼±×¸ÕÆ® ´ÜÀ§·Î ³ª´©¾î¼­ ¾²·¹µå°¡ µ¿ÀÛÇÏ´Â CPU¿Í °¡±î¿î ¼ÒÄÏÀÇ Optane DC·Î I/O¸¦ ¼öÇàÇϵµ·Ï ÇÑ´Ù. ¶ÇÇÑ ÀÀ¿ë ¼öÇà Áß ¿ø°Ý ¼ÒÄÏ¿¡¼­ÀÇ I/O°¡ ¸¹¾ÆÁö¸é NAFS´Â ÆÄÀÏÀÇ ¸ÞŸµ¥ÀÌÅ͸¦ ¸ðµç ¼ÒÄÏÀÇ Optane DC¿¡ º¹»çÇÑ µÚ ·ÎÄà I/O°¡ °¡´ÉÇϵµ·Ï ÇØÁØ´Ù. ±× °á°ú ºÒÇÊ¿äÇÑ ¿ø°Ý ¼ÒÄÏ I/O°¡ ÁÙ¾îµé¾î ¸ÖƼ¾²·¹µå ÀÀ¿ë¿¡¼­ÀÇ I/OÀÇ ¼º´ÉÀÌ Çâ»óµÇ¾ú´Ù
¿µ¹®³»¿ë
(English Abstract)
Intel Optane DC Persistent Memory has read/write latencies comparable to DRAM but ensures data persistence as in block devices such as SSD. However, Optane DC PM modules are installed in DIMM slots of NUMA nodes but legacy block devices are installed in PCIe or SATA. Therefore, Optane DC PMs are known to suffer from the NUMA effects, and the performance of a multithreaded application depends on the NUMA locality. In this paper, we propose a novel stackable file system, NUMA-Aware Filesystem (NAFS). NAFS divides a file into segment units such that I/Os can be performed in local NUMA nodes where each application thread runs. To enable this feature, NAFS duplicates the file metadata across all NUMA nodes if the number of remote I/Os exceeds a certain threshold. Our performance study shows NAFS reduces the number of accesses to remote NUMA nodes significantly, improving the performance of multithreaded applications.
Å°¿öµå(Keyword) ºñÈֹ߼º ¸Þ¸ð¸®   ÆÄÀϽýºÅÛ   Áö¿ª Á¢±Ù   ¿ø°Ý Á¢±Ù   º¹Á¦   non-volatile memory   filesystem   local access   remote access   replicate  
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