Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
MADE (Minhash-Assisted Delta Compression Engine) : µ¨Å¸ ¾ÐÃà ±â¹ÝÀÇ ³½µå Ç÷¡½Ã ÀúÀåÀåÄ¡ ³»±¸¼º Çâ»ó ±â¹ý |
¿µ¹®Á¦¸ñ(English Title) |
Improving the Lifetime of NAND Flash-based Storages by in-hash Assisted Delta Compression Engine |
ÀúÀÚ(Author) |
±ÇÇõÁØ
±èµµÇö
¹ÚÁö¼º
±èÁöÈ«
Hyoukjun Kwon
Dohyun Kim
Jisung Park
Jihong Kim
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 42 NO. 09 PP. 1078 ~ 1089 (2015. 09) |
Çѱ۳»¿ë (Korean Abstract) |
º» ¿¬±¸¿¡¼´Â ¾²±â µ¥ÀÌÅÍ¾ç °¨¼Ò¸¦ ÅëÇØ ³½µå Ç÷¡½Ã ±â¹Ý ÀúÀåÀåÄ¡ÀÇ ¼ö¸íÇâ»óÀ» µµ¸ðÇÒ ¼ö ÀÖ´Â MADE(Min-hash Assisted Delta-compression Engine) ¸ðµâÀ» Á¦¾ÈÇÑ´Ù. MADE ¸ðµâÀº µ¨Å¸¾ÐÃà ±â¹ý(delta compression)À» ÅëÇØ Áߺ¹µÇ´Â µ¥ÀÌÅÍ ÆÐÅÏÀ» ÃÖ¼ÒÈÇÏ¿© ½ÇÁ¦ ³½µå Ç÷¡½Ã¿¡ ¾È°¡µÇ´Â ¾²±â ¸í·É Ƚ¼ö¸¦ ȹ±âÀûÀ¸·Î ÁÙÀÏ ¼ö ÀÖÀ» »Ó¸¸ ¾Æ´Ï¶ó, Áߺ¹Á¦°Å±â¹ý(deduplication) ¹× ¹«¼Õ½Ç¾ÐÃà±â¹ý(lossless compression)ÀÇ ÅëÇÕÀû¿ë°ú À¯»çÇÑ È¿°ú¸¦ º¼ ¼ö ÀÖµµ·Ï ¼³°èµÇ¾ú´Ù. ¶ÇÇÑ µ¨Å¸¾ÐÃà±â¹ý °úÁ¤ Áß ÇÊ¿äÇÑ ÂüÁ¶ ÆäÀÌÁö Ž»ö ¹× ¾ÐÃà ±â¹ýÀ» ÃÖÀûÈÇÏ¿©, ÀúÀåµÇ´Â µ¥ÀÌÅ;çÀ» ÃÖ´ëÇÑ ÁÙÀÌ´Â µ¿½Ã¿¡ ºÎ°¡ÀûÀÎ ¿À¹öÇìµå¸¦ ÃÖ¼ÒÈ ÇÏ¿´´Ù. ½Ã¹Ä·¹ÀÌ¼Ç °á°ú, MADE°¡ Àû¿ëµÈ Ç÷¹½Ã º¯È¯°èÃþ(Flash Transition Layer, FTL)Àº ½ÇÁ¦ ³½µå Ç÷¹½Ã Ĩ¿¡ ÀúÀåµÇ´Â µ¥ÀÌÅ͸¦ ÃÖ¼Ò 50% ÁÙÀÏ ¼ö ÀÖ¾úÀ¸¸ç, ¼øÂ÷ÀûÀÎ Áߺ¹Á¦°Å±â¹ý°ú ¹«¼Õ½Ç¾ÐÃà ±â¹ýÀ» ´Ü¼ø ÅëÇÕÇÏ¿© Àû¿ëÇÑ °æ¿ì¿¡ ºñÇØ Ãß°¡ÀûÀ¸·Î 12%ÀÇ ¾²±â µ¥ÀÌÅ;çÀ» °¨¼Ò½Ãų ¼ö ÀÖ¾ú´Ù.
|
¿µ¹®³»¿ë (English Abstract) |
In this paper, we propose the Min-hash Assisted Delta-compression Engine(MADE) to improve the lifetime of NAND flash-based storages at the device level. MADE effectively reduces the write traffic to NAND flash through the use of a novel delta compression scheme. The delta compression performance was optimized by introducing min-hash based LSH(Locality Sensitive Hash) and efficiently combining it with our delta compression method. We also developed a delta encoding technique that has functionality equivalent to deduplication and lossless compression. The results of our experiment show that MADE reduces the amount of data written on NAND flash by up to 90%, which is better than a simple combination of deduplication and lossless compression schemes by 12% on average.
|
Å°¿öµå(Keyword) |
³½µå Ç÷¡½Ã ÀúÀåÀåÄ¡
µ¨Å¸¾ÐÃà
VCDIFF
min-hash
locality-sensitive hash
Áߺ¹Á¦°Å±â¹ý
¹«¼Õ½Ç ¾ÐÃà
NAND flash devices
delta compression
VCDIFF
min-hash
locality sensitive hash
deduplication
lossless compression
|
ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
|