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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 : 67 / 397 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ºñÈֹ߼º ij½Ã¸¦ »ç¿ëÇÏ´Â Ç÷¡½Ã ¸Þ¸ð¸® SSDÀÇ µ¥ÀÌÅͺ£À̽º ·Î±ë ¼º´É ºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Performance Analysis of Flash Memory SSD with Non-volatile Cache for Log Storage
ÀúÀÚ(Author) È«´ë¿ë   ¿À±âȯ   °­¿îÇР  ÀÌ»ó¿ø   Dae-Yong Hong   Gi-Hwan Oh   Woon-Hak Kang   Sang-Won Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 42 NO. 01 PP. 0107 ~ 0113 (2015. 01)
Çѱ۳»¿ë
(Korean Abstract)
µ¥ÀÌÅͺ£À̽º ½Ã½ºÅÛ¿¡¼­, Æ®·£Àè¼ÇÀÌ ¼öÇàÇÑ º¯°æ »çÇ×Àº Ä¿¹Ô Àü 2Â÷ ÀúÀåÀåÄ¡¿¡ º¸Á¸µÇ¾î¾ßÇÑ´Ù. ÀϹÝÀû 2Â÷ ÀúÀåÀåÄ¡´Â ºñÈֹ߼º ¹Ìµð¾îÀÇ Ã³¸® Áö¿¬À» º¸¿ÏÇϱâ À§ÇØ Èֹ߼º DRAM ij½Ã¸¦ °¡Áö°í ÀÖ´Ù. ±×·¯³ª Èֹ߼º DRAM¿¡¸¸ ¾²¿©Áö´Â ·Î±×µéÀº ¿µ±¸¼ºÀ» º¸ÀåÇÒ ¼ö ¾øÀ¸¹Ç·Î, DRAM ij½Ã¿¡¼­ ÀúÀå¸Åü·Î ·Î±×¸¦ ¾²´Â Áö¿¬ ½Ã°£À» °¨Ãâ ¼ö ¾ø´Ù. ÃÖ±Ù ÀÌ·¯ÇÑ ´ÜÁ¡ ±Øº¹À» ¸ñÀûÀ¸·Î DRAM ij½Ã¿¡ Ä¿ÆнÃÅ͸¦ ÀåÂøÇÑ Ç÷¡½Ã SSD°¡ µîÀåÇÏ¿´´Ù. ÀÌ·¯ÇÑ ºñÈֹ߼º ij½Ã¸¦ °¡Áö´Â ÀúÀå ÀåÄ¡´Â DRAM ij½Ã¿¡ ·Î±×¸¦ ¾²°í Áï½Ã Ä¿¹Ô °¡´ÉÇϹǷÎ, Ä¿¹Ô ´ë±â¸¦ ÁÙÀÌ°í Æ®·£Àè¼Ç 󸮷®À» Áõ°¡½Ãų °ÍÀÌ´Ù. º» ³í¹®Àº Ä¿ÆнÃÅÍ ¹é¾÷ ij½Ã¸¦ »ç¿ëÇÑ SSD¸¦ ·Î±× ÀúÀå¼Ò·Î »ç¿ëÇÑ °æ¿ì µ¥ÀÌÅͺ£À̽ºÀÇ Æ®·£Àè¼Ç ó¸® ¼º´É¿¡ ´ëÇØ ½ÇÇè ¹× ºÐ¼® ÇÑ´Ù. ·Î±×¸¦ ³½µå Ç÷¡½Ã¿¡ ÀúÀåÇÏÁö ¾Ê°í DRAM ij½Ã¿¡ ÀúÀåÇÑ Á÷ÈÄ Ä¿¹Ô ÇÔÀ¸·Î½á, 3¹è ÀÌ»óÀÇ Ã³¸®·® Çâ»óÀÌ °¡´ÉÇÏ´Ù. ¶ÇÇÑ ÀûÀýÇÑ Æ©´×À» °ÅÄ£ ÈÄ ÀÌ»óÀû ·Î±× ¼º´ÉÀÇ 73% ÀÌ»óÀ» º¸ÀδÙ.
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(English Abstract)
In a database system, updates on pages that are made by a transaction should be stored in a secondary storage before the commit is complete. Generic secondary storages have volatile DRAM caches to hide long latency for non-volatile media. However, as logs that are only written to the volatile DRAM cache don¡¯t ensure durability, logging latency cannot be hidden. Recently, a flash SSD with capacitor-backed DRAM cache was developed to overcome the shortcoming. Storage devices, like those with a non-volatile cache, will increase transaction throughput because transactions can commit as soon as the logs reach the cache. In this paper, we analyzed performance in terms of transaction throughput when the SSD with capacitor-backed DRAM cache was used as log storage. The transaction throughput can be improved over three times, by committing right after storing the logs to the DRAM cache, rather than to a secondary storage device. Also, we showed that it could acquire over 73% of the ideal logging performance with proper tuning.
Å°¿öµå(Keyword) µ¥ÀÌÅͺ£À̽º   ºñÈֹ߼º ij½Ã   Ç÷¡½Ã ¸Þ¸ð¸® SSD   ·Î±× ÀúÀå ÀåÄ¡   database   non-volatile cache   flash memory SSD   log storage device  
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