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
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Seungjun Ha
Hobin Woo
Euiseong Seo
Beomseok Nam
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¿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¸ÀÌ¸é¼ 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
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¿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.
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Å°¿öµå(Keyword) |
ºñÈֹ߼º ¸Þ¸ð¸®
ÆÄÀϽýºÅÛ
Áö¿ª Á¢±Ù
¿ø°Ý Á¢±Ù
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non-volatile memory
filesystem
local access
remote access
replicate
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ÆÄÀÏ÷ºÎ |
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