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Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Current Result Document :
1
/ 7
´ÙÀ½°Ç
ÇѱÛÁ¦¸ñ(Korean Title)
PCM ±â¹Ý ½º¿Ò ÀåÄ¡¸¦ À§ÇÑ Å¬·° ±â¹Ý ÃÖ¼Ò ¾²±â ¿ì¼± ±³Ã¼ Á¤Ã¥
¿µ¹®Á¦¸ñ(English Title)
The Least-Dirty-First CLOCK Replacement Policy for Phase-Change Memory based Swap Devices
ÀúÀÚ(Author)
À¯½ÂÈÆ
ÀÌÀºÁö
¹ÝÈ¿°æ
Seunghoon Yoo
Eunji Lee
Hyokyung Bahn
¿ø¹®¼ö·Ïó(Citation)
VOL 42 NO. 09 PP. 1071 ~ 1077 (2015. 09)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®Àº PCMÀ» °¡»ó¸Þ¸ð¸® ½º¿Ò ÀåÄ¡·Î »ç¿ëÇÏ´Â ½Ã½ºxpamdf À§ÇÑ »õ·Î¿î ÆäÀÌÁö ±³Ã¼ ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ýÀº ¸Þ¸ð¸® ³»ÀÇ °¢ ÆäÀÌÁö¿¡ ´ëÇÑ ¼öÁ¤ Á¤µµ¸¦ °í·ÁÇؼ ±³Ã¼ ´ë»ó ÆäÀÌÁö¸¦ ¼±Á¤Çϸç À̸¦ ÅëÇØ PCM¿¡ ¹ß»ý½ÃÅ°´Â ¾²±â·®À» ÁÙÀδÙ. Áï, Á¦¾ÈÇÏ´Â ±â¹ýÀº ÆäÀÌÁö ¼öÁ¤ Á¤µµ¸¦ ¼ºêÆäÀÌÁö ´ÜÀ§·Î °ü¸®ÇÏ°í ÃÖ±Ù¿¡ »ç¿ëµÇÁö ¾ÊÀº ÆäÀÌÁö Áß ¼öÁ¤µÈ ¼ºêÆäÀÌÁöÀÇ ¼ö°¡ ÃÖ¼ÒÀÎ ÆäÀÌÁö¸¦ ±³Ã¼ÇÑ´Ù. Æ®·¹À̽º¸¦ ÀÌ¿ëÇÑ ÀçÇö ½ÇÇèÀ» ÅëÇØ Á¦¾ÈÇÑ ±â¹ýÀÌ ±âÁ¸ CLOCK ¾Ë°í¸®Áò ´ëºñ Æò±Õ 22.9% chleo 73.7%ÀÇ CM ¾²±â·®À» Àý°¨ÇÔÀ» È®ÀÎÇÏ¿´´Ù. ¶ÇÇÑ PCMÀÇ ¼ö¸í°ú ¿¡³ÊÁö ¼Ò¸ðÀ²À» °¢°¢ Æò±Õ 49.0%¿Í 3.0% °³¼±ÇÔÀ» º¸¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, we adopt PCM (phase-change memory) as a virtual memory swap device and present a new page replacement policy that considers the characteristics of PCM. Specifically, we aim to reduce the write traffic to PCM by considering the dirtiness of pages when making a replacement decision. The proposed policy tracks the dirtiness of a page at the granularity of a sub-page and replaces the least dirty page among the pages not recently used. Experimental results show that the proposed policy reduces the amount of data written to PCM by 22.9% on average and up to 73.7% compared to CLOCK. It also extends the lifespan of PCM by 49.0% and reduces the energy consumption of PCM by 3.0% on average.
Å°¿öµå(Keyword)
PCM
½º¿Ò
¾²±â ÂüÁ¶
ÆäÀÌÁö ±³Ã¼
phase-change memory
swap
write references
page replacement
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