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ÇѱÛÁ¦¸ñ(Korean Title) |
¹Ý°¡»óÈ ÆÄÀϽýºÅÛÀ» ÀÌ¿ëÇÑ ÆÄÀÏ ÀÔÃâ·Â ¼º´É Çâ»ó ±¸Á¶ ¼³°è |
¿µ¹®Á¦¸ñ(English Title) |
A Design for Improving File I/O Performance Using Paravirtualized Filesystem |
ÀúÀÚ(Author) |
À̱âÈ«
À̵¿¿ì
¾ö¿µÀÍ
Kihong Lee
Dongwoo Lee
Young Ik Eom
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¿ø¹®¼ö·Ïó(Citation) |
VOL 41 NO. 03 PP. 0132 ~ 0139 (2014. 06) |
Çѱ۳»¿ë (Korean Abstract) |
´Ù¾çÇÑ °¡»óÈ ±â¼úÀÌ ¿¬±¸µÇ°í Çϵå¿þ¾î¿¡¼ °¡»óȸ¦ Áö¿øÇÏ´Â ±â´ÉµéÀ» Ãß°¡ÇÔ¿¡ µû¶ó °¡»óÈ´Â ´Ù¾çÇÑ ºÐ¾ß¿¡¼ ÀÌ¿ëµÇ°í ÀÖ´Ù. ÇÏÁö¸¸ °¡»óÈµÈ ½Ã½ºÅÛ¿¡¼ ÀÔÃâ·ÂÀÌ ¸¹ÀÌ ¹ß»ýÇÏ´Â ¿öÅ©·Îµå´Â °Ô½ºÆ®¿Í È£½ºÆ® °£ ¸ðµå Àüȯ(vmexit)ÀÌ ÀÚÁÖ ¹ß»ýÇÏ°í, È£½ºÆ®¿Í °Ô½ºÆ® ¿î¿µÃ¼Á¦ÀÇ Áߺ¹µÈ ÀÔÃâ·Â ½ºÅÃÀ¸·Î ÀÎÇØ ¼º´É ÀúÇÏ°¡ ¾ß±âµÈ´Ù. º» ³í¹®¿¡¼´Â °¡»óÈ È¯°æÀ» ÀÎÁöÇÑ ¹Ý°¡»óÈ ÆÄÀϽýºÅÛÀ» ÅëÇØ Áߺ¹µÈ ÀÔÃâ·Â ½ºÅÃÀ» Á¦°ÅÇÏ°í vmexitÀÇ ¹ß»ýÀ» ÃÖ¼ÒÈÇÏ¿©, °¡»óÈ È¯°æ¿¡¼ ÆÄÀÏ ÀÔÃâ·Â ¼º´ÉÀ» Çâ»ó½Ãų ¼ö ÀÖ´Â ±¸Á¶¸¦ Á¦¾ÈÇÑ´Ù. Á¦¾È ±â¹ýÀÇ ¼º´É Çâ»óÀ» ÃøÁ¤Çϱâ À§ÇØ FUSE¸¦ ÀÌ¿ëÇÏ¿© ÇÁ·ÎÅäŸÀÔÀ» ±¸ÇöÇÏ°í, ¼º´ÉÀ» ÃøÁ¤ÇÑ °á°ú ÆÄÀÏ ÀÔÃâ·Â Áß½ÉÀÇ ¿öÅ©·Îµå¿¡¼ virtio ´ëºñ 19¢¦60% ¼º´ÉÀÌ Çâ»óµÇ°í, ÀÔÃâ·Â ó¸® °úÁ¤ Áß ¹ß»ýµÇ´Â vmexitÀÌ 93% °¨¼ÒÇÏ¿´´Ù. ¶ÇÇÑ °¢ ÆÄÀÏ ÀÔÃâ·Â ¿¬»êÀÇ ÀÀ´ä ½Ã°£ÀÌ 33% °¨¼ÒµÊÀ» È®ÀÎÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
With several new virtualization technologies and virtualization-support devices, virtualization is now being widely used in various areas. In a virtualized environment, however, I/O-intensive workloads still suffer from performance degradation due to CPU mode switching (vmexit) and duplicated I/O stacks in host and guest OSes. In this paper, we propose a framework with paravirtualized filesystem for improving file I/O performance in a virtualized environment by removing redundant I/O stack and occurrence of vmexit. To verify performance improvement of our approach, we implemented a prototype with FUSE and measured its file I/O performance. The results show that our framework gives 19¢¦60% better throughput than virtio, and vmexits are reduced by 93%. In addition, file I/O latency is decreased by 33%. |
Å°¿öµå(Keyword) |
ÀÔÃâ·Â ÀåÄ¡ °¡»óÈ
¹Ý°¡»óÈ
ÆÄÀϽýºÅÛ
ÀÔÃâ·Â ½ºÅÃ
I/O device virtualization
paravirtualization
filesystem
vmexit
I/O stack
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ÆÄÀÏ÷ºÎ |
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