2018³â ÄÄÇ»ÅÍÁ¾ÇÕÇмú´ëȸ
ÇѱÛÁ¦¸ñ(Korean Title) |
QCOW2 °¡»ó µð½ºÅ©¿¡¼ ÁõÆøµÈ sync ¿¬»êÀÇ Áö¿¬ °¨¼Ò ±â¹ý |
¿µ¹®Á¦¸ñ(English Title) |
Delay Reduction Technique for Amplified Sync Operation of QCOW2 Virtual Disk |
ÀúÀÚ(Author) |
±è¸í¼±
¿øÀ¯Áý
Myeongseon Kim
Youjip Won
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¿ø¹®¼ö·Ïó(Citation) |
VOL 45 NO. 01 PP. 1581 ~ 1583 (2018. 06) |
Çѱ۳»¿ë (Korean Abstract) |
QCOW2´Â QEMU °¡»ó¸Ó½Å¿¡¼ »ç¿ëµÇ´Â °¡»ó µð½ºÅ© À̹ÌÁö·Î Copy-on-Write, ½º³À¼¦°ú °°Àº À¯¿ëÇÑ ±â´ÉÀ» Á¦°øÇÏ´Â ÀåÁ¡ÀÌ ÀÖ´Ù. ÇÏÁö¸¸ QCOW2¿¡´Â Guest OS¿¡¼ fdatasync()¸¦ È£ÃâÇßÀ» ¶§ QEMU¿¡¼ ÃÖ¼Ò 3¹è ÀÌ»óÀÇ fdatasync()°¡ È£ÃâµÇ´Â sync ÁõÆøÀ¸·Î ÀÎÇØ ¼º´ÉÀÌ ÀúÇϵǴ ¹®Á¦¸¦ °¡Áö°í ÀÖ´Ù. º» ³í¹®¿¡¼´Â sync ÁõÆøÀ¸·Î ÀÎÇÑ ¼º´É ÀúÇÏ ¹®Á¦¸¦ ÇØ°áÇÏ°íÀÚ QEMU¿¡ BFS¿¡¼ Á¦°øÇÏ´Â fdatabarrier()¸¦ Àû¿ëÇÏ¿´´Ù. ±âÁ¸ QEMU ´ëºñ, latency´Â ÃÖ´ë 3.6% °¨¼ÒÇÏ¿´°í throughputÀº ÃÖ´ë 81.1%±îÁö Áõ°¡ÇÏ¿© ¼º´É Çâ»óÀ» º¸¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
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Å°¿öµå(Keyword) |
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