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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 : 9 / 16 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¸Þ¸ð¸® ÆÄÀÏ ½Ã½ºÅÛ ±â¹Ý °í¼º´É ¸Þ¸ð¸® ¸Ê ÆÄÀÏ ÀÔÃâ·ÂÀ» À§ÇÑ ¸ÅÇΠij½Ã
¿µ¹®Á¦¸ñ(English Title) Mapping Cache for High-Performance Memory Mapped File I/O in Memory File Systems
ÀúÀÚ(Author) ±èÁö¿ø   ÃÖÁ¤½Ä   ÇÑȯ¼ö   Jiwon Kim   Jungsik Choi   Hwansoo Han  
¿ø¹®¼ö·Ïó(Citation) VOL 43 NO. 05 PP. 0524 ~ 0530 (2016. 05)
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(Korean Abstract)
±âÁ¸º¸´Ù µ¥ÀÌÅ͸¦ ºü¸£°Ô Á¢±ÙÇϱâ À§ÇÑ ³ë·Â°ú ºñ-Èֹ߼º ¸Þ¸ð¸®ÀÇ ¹ßÀüÀº ¸Þ¸ð¸® ÆÄÀÏ ½Ã½ºÅÛ ¿¬±¸¿¡ Å« ±â¿©¸¦ ÇØ¿Ô´Ù. ¸Þ¸ð¸® ÆÄÀÏ ½Ã½ºÅÛÀº ÆÄÀÏ ÀÔÃâ·ÂÀÇ °í¼º´ÉÀ» À§Çؼ­ ±âÁ¸¿¡ »ç¿ëÇÏ´Â Àбâ-¾²±â ÀÔÃâ·Âº¸´Ù ¿À¹öÇìµå°¡ ÀûÀº ¸Þ¸ð¸® ¸Ê ÆÄÀÏ ÀÔÃâ·ÂÀ» »ç¿ëÇϵµ·Ï Á¦¾ÈÇÏ°í ÀÖ´Ù. ÇÏÁö¸¸ ¸Þ¸ð¸® ¸Ê ÆÄÀÏ ÀÔÃâ·ÂÀ» »ç¿ëÇÏ°Ô µÇ¸é¼­ ÆäÀÌÁö Å×À̺íÀ» ±¸ÃàÇÒ ¶§ ¹ß»ýÇÏ´Â ¿À¹öÇìµå°¡ Àüü ÀÔÃâ·Â ¼º´ÉÀÇ Å« ºÎºÐÀ» Â÷ÁöÇÏ°Ô µÇ¾ú´Ù. ¶ÇÇÑ °°Àº ÆÄÀÏÀÌ ¹Ýº¹ÀûÀ¸·Î Á¢±ÙµÉ ¶§¸¶´Ù ÆäÀÌÁö Å×À̺íÀ» ¸Å¹ø »èÁ¦Çϱ⠶§¹®¿¡, ¿À¹öÇìµå°¡ ºÒÇÊ¿äÇÏ°Ô Áߺ¹µÇ¾î¼­ ¹ß»ýÇÑ´Ù´Â Á¡À» ¹ß°ßÇß´Ù. º» ³í¹®ÀÌ Á¦¾ÈÇÏ´Â ¸ÅÇΠij½Ã´Â ÀÌ·¯ÇÑ Áߺ¹µÇ´Â ¿À¹öÇìµå¸¦ Á¦°ÅÇϱâ À§Çؼ­, ¸ÅÇÎÀÌ ÇØÁ¦µÉ ¶§ ÆÄÀÏÀÇ ÆäÀÌÁö Å×À̺íÀ» Á¦°ÅÇÏÁö ¾Ê°í ÀúÀåÇÏ°í ÀÖ´Ù°¡ ´Ù½Ã Á¢±ÙµÉ ¶§ À̸¦ ÀçÈ°¿ëÇÒ ¼ö ÀÖµµ·Ï °í¾ÈÇÑ ±â¹ýÀÌ´Ù. ¸ÅÇΠij½Ã´Â ±âÁ¸ ÆÄÀÏÀÔÃâ·Â ¼º´Éº¸´Ù 2.8¹è, ±×¸®°í À¥¼­¹ö Àüü ¼º´Éº¸´Ù 12% Çâ»óÀ» º¸¿´´Ù.
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(English Abstract)
The desire to access data faster and the growth of next-generation memories such as non-volatile memories, contribute to the development of research on memory file systems. It is recommended that memory mapped file I/O, which has less overhead than read-write I/O, is utilized in a high-performance memory file system. Memory mapped file I/O, however, brings a page table overhead, which becomes one of the big overheads that needs to be resolved in the entire file I/O performance. We find that same overheads occur unnecessarily, because a page table of a file is removed whenever a file is opened after being closed. To remove the duplicated overhead, we propose the mapping cache, a technique that does not delete a page table of a file but saves the page table to be reused when the mapping of the file is released. We demonstrate that mapping cache improves the performance of traditional file I/O by 2.8x and web server performance by 12%.
Å°¿öµå(Keyword) ¸Þ¸ð¸® ÆÄÀÏ ½Ã½ºÅÛ   ¸Þ¸ð¸® ¸Ê ÆÄÀÏ ÀÔÃâ·Â   ÆäÀÌÁö Å×ÀÌºí ±¸Ãà ¿À¹öÇìµå   ¸ÅÇΠij½Ã   memory file system   memory mapped file I/O   page table overhead   mapping cache  
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