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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö A : ½Ã½ºÅÛ ¹× ÀÌ·Ð

Á¤º¸°úÇÐȸ ³í¹®Áö A : ½Ã½ºÅÛ ¹× ÀÌ·Ð

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) VIT: °Ô½ºÆ® ¿î¿µÃ¼Á¦ÀÇ ½Ç½Ã°£¼º Áö¿øÀ» À§ÇÑ Å¸ÀÌ¸Ó ÇÏÀÌÆÛÄÝ
¿µ¹®Á¦¸ñ(English Title) VIT: A Timer Hypercall to Support Real-time of Guest Operating Systems
ÀúÀÚ(Author) ¹Ú¹Ì¸®   ȫöȣ   À¯½Ãȯ   À¯ Çõ   Miri Park   Cheol-ho Hong   See-hwan Yoo   Chuck Yoo  
¿ø¹®¼ö·Ïó(Citation) VOL 37 NO. 01 PP. 0035 ~ 0042 (2010. 02)
Çѱ۳»¿ë
(Korean Abstract)
°¡»óÈ­ ȯ°æ¿¡¼­´Â ¿©·¯ °³ÀÇ °Ô½ºÆ® ¿î¿µÃ¼Á¦°¡ ÀÚ¿øÀ» °øÀ¯ÇÏ°í Àִµ¥ ƯÈ÷ CPU´Â ½Ã°£ ºÐÇÒ ¹æ½Ä¿¡ ÀÇÇØ ºÐ¹è µÈ´Ù. µû¶ó¼­ °¢ °¡»ó ¸Ó½ÅÀº ¸ðµç ¹°¸® ½Ã°£À» Á¡À¯ÇÏÁö ¸øÇÏ°í, ÀÌ´Â CPU¸¦ Á¡À¯ÇÏÁö ¸øÇÑ ½Ã°£¿¡ µ¿ÀÛÇØ¾ß Çϴ ŽºÅ© ½ÇÇàÀÌ º¸ÀåµÇÁö ¸øÇÏ´Â °á°ú¸¦ ¾ß±â½ÃŲ´Ù. ÀÌ¿Í °°Àº ÀÀ´ä¼ºÀÇ ÀúÇÏ´Â ±âÁ¸ÀÇ ¼­¹ö °¡»óÈ­¿¡¼­ Ä¡¸íÀûÀÎ ¹®Á¦°¡ µÇÁö ¾ÊÀ¸³ª ÀÓº£µðµå ½Ã½ºÅÛ¿¡¼­ µ¿ÀÛÇÏ´Â ½Ç½Ã°£ ŽºÅ© Ãø¸é¿¡¼­´Â Áß¿äÇÏ°Ô ´Ù·ç¾î Á®¾ß ÇÏ´Â ¿ä±¸»çÇ×ÀÌ µÈ´Ù. º» ³í¹®¿¡¼­ ¿ì¸®´Â ½Ç½Ã°£¼º°ú °ü·ÃµÈ ŸÀ̸Ӹ¦ °¡»ó ¸Ó½Å ¸ð´ÏÅÍ¿¡ µî·ÏÇÒ ¼ö ÀÖ´Â ÇÏÀÌÆÛÄÝÀ» Á¦¾ÈÇÑ´Ù. ÀÌ ÇÏÀÌÆÛÄÝÀ» ÅëÇÏ¿© µî·ÏµÈ ŸÀ̸Ӵ ¸¸·áµÈ ½ÃÁ¡¿¡ ÇØ´ç °¡»ó ¸Ó½ÅÀÌ ½ÇÇàµÇ°Ô ÇÑ´Ù. µû¶ó¼­ ½Ç½Ã°£¼ºÀ» ¿äÇϴ ŽºÅ©µéÀÌ ÀǵµµÈ ½Ã°£¿¡ ½ÇÇà °¡´ÉÇÏ°Ô ÇÏ¸ç ´Ù¸¥ °¡»ó ¸Ó½ÅÀÇ ±â¾Æ Çö»óÀ» ¿ÏÈ­½ÃÄÑ ÁØ´Ù. À̾îÁö´Â ½ÇÇè¿¡¼­´Â Xen-Arm¿¡ À̸¦ ±¸ÇöÇÏ¿© °Ô½ºÆ® ¿î¿µÃ¼Á¦ÀÎ ¸®´ª½º¿¡¼­ÀÇ ½Ç½Ã°£¼ºÀ» Æò°¡ÇÑ´Ù. ƯÈ÷ Å×½ºÆ® ÀÀ¿ë°ú MplayerÀÇ ÀÀ´ä¼º ¹× ÃÊ´ç ÇÁ·¹ÀÓ ¼ö¸¦ ÃøÁ¤ÇÏ¿© ÇÑ °³ÀÇ °Ô½ºÆ® ¿î¿µÃ¼Á¦¸¸ÀÌ µ¿ÀÛÇϴ ȯ°æ¿¡¼­¿Í ºñ½ÁÇÑ ½Ç½Ã°£¼ºÀÌ Áö¿øµÉ ¼ö ÀÖÀ½À» º¸ÀδÙ.
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(English Abstract)
Guest operating systems running over the virtual machines share a variety of resources. Since CPU is allocated in a time division manner it consequently leads them to having the unknown physical time. It is not regarded as a serious problem in the server virtualization fields. However, it becomes critical in embedded systems because it prevents guest OS from executing real time tasks when it does not occupy CPU. In this paper we propose a hypercall to register a timer service to notify the timer request related real time. It enables hypervisor to schedule a virtual machine which has real time tasks to execute, and allows guest OS to take CPU on time to support real time. The following experiment shows its implementation on Xen-Arm and para-virtualized Linux. We also analyze the real time performance with response time of test application and frames per second of Mplayer.
Å°¿öµå(Keyword) °¡»óÈ­   °¡»ó ¸Ó½Å ¸ð´ÏÅÍ   ÇÏÀÌÆÛÄÝ   ½Ç½Ã°£¼º   ÀÓº£µðµå ¼ÒÇÁÆ®¿þ¾î   Virtualization   Virtual Machine Monitor   Hypercall   Real Time   Embedded Software  
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