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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö ÄÄÇ»ÅÍ ¹× Åë½Å½Ã½ºÅÛ

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Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ÀÚÀ²ÇнÀ±â¹ÝÀÇ ¿¡³ÊÁö È¿À²ÀûÀΠŬ·¯½ºÅÍ °ü¸®¿¡¼­ÀÇ ¼º´É °³¼±
¿µ¹®Á¦¸ñ(English Title) Performance Improvement of an Energy Efficient Cluster Management Based on Autonomous Learning
ÀúÀÚ(Author) Á¶¼ºÃ¶   Á¤±Ô½Ä   Sungchul Cho   Kyusik Chung  
¿ø¹®¼ö·Ïó(Citation) VOL 04 NO. 11 PP. 0369 ~ 0382 (2015. 11)
Çѱ۳»¿ë
(Korean Abstract)
¿¡³ÊÁö Àý°¨Çü ¼­¹ö Ŭ·¯½ºÅÍ¿¡¼­´Â ¿¡³ÊÁö Àý°¨À» °í·ÁÇÏÁö ¾Ê´Â ±âÁ¸ ¼­¹ö Ŭ·¯½ºÅÍ¿¡ ºñÇØ ¼­ºñ½º Ç°ÁúÀ» º¸ÀåÇϸ鼭 Àü·Â¼Òºñ¸¦ Àý°¨ÇÏ´Â °ÍÀ» ¸ñÇ¥·Î Çϸç, ÇöÀçÀÇ ºÎÇϸ¦ ó¸®ÇÏ´Â µ¥ ÇÊ¿äÇÑ ÃÖ¼Ò¼öÀÇ ¼­¹öµé¸¸ ON Çϵµ·Ï °íÁ¤ Áֱ⠶Ǵ °¡º¯ ÁÖ±â·Î ¼­¹öµéÀÇ Àü¿ø¸ðµå¸¦ Á¶Á¤ÇÑ´Ù. ÀÌ¿¡ ´ëÇÑ ±âÁ¸ ¿¬±¸µéÀº Àü·ÂÀ» Àý°¨Çϰųª ¿­À» ³·Ãߴµ¥ ³ë·ÂÇØ¿ÔÁö¸¸ ¿¡³ÊÁö È¿À²¼ºÀ» Àß °í·ÁÇÏÁö ¸øÇß´Ù. º» ³í¹®¿¡¼­´Â ±âÁ¸ ÀÚÀ²ÇнÀ±â¹ÝÀÇ ¼­¹ö Àü¿ø ¸ðµå Á¦¾î ¹æ¹ýÀÇ ´ÜÀ§Àü·Â´ç ¼º´É°ú QoS¸¦ ³ôÀ̱â À§ÇÑ ¿¡³ÊÁö È¿À²ÀûÀΠŬ·¯½ºÅÍ °ü¸®±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾È ¹æ¹ýÀº ´ÙÁßÀÓ°è±â¹ÝÀÇ ÀÚÀ²ÇнÀ ¹æ¹ý°ú Àü·Â¼Ò¸ð ¿¹Ãø ¹æ¹ýÀ» °áÇÕÇÑ ¼­¹ö Àü¿ø ¸ðµå Á¦¾îÀÌ´Ù. ÀϹÝÀûÀÎ ºÎÇÏ »óȲ¿¡¼­´Â ´ÙÁßÀÓ°è ÇнÀ±â¹ÝÀÇ ¼­¹ö Àü¿ø ¸ðµå Á¦¾î¸¦ Àû¿ëÇÏ°í, ±Þº¯ÇÏ´Â ºÎÇÏ »óȲ¿¡¼­´Â ¿¹Ãø±â¹ÝÀÇ ¼­¹ö Àü¿ø ¸ðµå Á¦¾î°¡ Àû¿ëµÈ´Ù. ÀϹÝÀû »óȲ°ú ±Þº¯ÇÏ´Â »óȲÀÇ ±¸º°Àº ÇöÀçÀÇ »ç¿ëÀÚ ¿äû°ú °üÂûµÈ °ú°Å ¸î ºÐÀÇ »ç¿ëÀÚ ¿äûÀÇ ºñÀ²¿¡ µû¶ó ÀÌ·ç¾îÁø´Ù. ¶ÇÇÑ, µ¿ÀûÁ¾·á ±â¹ýÀ» Ãß°¡·Î Àû¿ëÇØ ¼­¹ö°¡ OFF ÇÏ´Â µ¥ ¼Ò¿äµÇ´Â ½Ã°£À» ´ÜÃàÇÑ´Ù. Á¦¾È ¹æ¹ýÀº 16´ë ¼­¹ö·Î ±¸¼ºµÈ Ŭ·¯½ºÅÍ È¯°æ¿¡¼­ 3°¡Áö ºÎÇÏ ÆÐÅÏÀ» ÀÌ¿ëÇÏ¿© ½ÇÇèÀ» ¼öÇàÇÑ´Ù. ´ÙÁßÀÓ°è ÇнÀ, ¿¹Ãø, µ¿ÀûÁ¾·á¸¦ ÇÔ²² ÀÌ¿ëÇÑ ½ÇÇè¿¡¼­ ´ÜÀ§Àü·Â´ç ¼º´É(À¯È¿ÀÀ´ä ¼ö)°ú Ç¥ÁØÈ­µÈ QoS Ãø¸é¿¡¼­ °¡Àå ¿ì¼öÇÑ °á°ú¸¦ º¸¿©ÁØ´Ù. Á¦¾ÈÇÏ´Â ¹æ¹ý°ú ÆĶó¹ÌÅÍ ·ÎµåµÈ ´ÜÀÏÀÓ°è ÇнÀÀ» ºñ±³ÇÒ ¶§ ¹ðÅ· ºÎÇÏÆÐÅÏ, ½ÇÁ¦ ºÎÇÏÆÐÅÏ, °¡»ó ºÎÇÏÆÐÅÏ¿¡¼­ ´ÜÀ§Àü·Â´ç À¯È¿ÀÀ´ä ¼ö°¡ °¢°¢ 1.66%, 2.9%, 3.84% Çâ»óµÇ°í, QoS °üÁ¡¿¡¼­´Â °¢°¢ 0.45%, 1.33%, 8.82% Çâ»óµÇ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
Energy aware server clusters aim to reduce power consumption at maximum while keeping QoS(quality of service) compared to energy non-aware server clusters. They adjust the power mode of each server in a fixed or variable time interval to activate only the minimum number of servers needed to handle current user requests. Previous studies on energy aware server cluster put efforts to reduce power consumption or heat dissipation, but they do not consider energy efficiency well. In this paper, we propose an energy efficient cluster management method to improve not only performance per watt but also QoS of the existing server power mode control method based on autonomous learning. Our proposed method is to adjust server power mode based on a hybrid approach of autonomous learning method with multi level thresholds and power consumption prediction method. Autonomous learning method with multi level thresholds is applied under normal load situation whereas power consumption prediction method is applied under abnormal load situation. The decision on whether current load is normal or abnormal depends on the ratio of the number of current user requests over the average number of user requests during recent past few minutes. Also, a dynamic shutdown method is additionally applied to shorten the time delay to make servers off. We performed experiments with a cluster of 16 servers using three different kinds of load patterns. The multi-threshold based learning method with prediction and dynamic shutdown shows the best result in terms of normalized QoS and performance per watt (valid responses). For banking load pattern, real load pattern, and virtual load pattern, the numbers of good response per watt in the proposed method increase by 1.66%, 2.9% and 3.84%, respectively, whereas QoS in the proposed method increase by 0.45%, 1.33% and 8.82%, respectively, compared to those in the existing autonomous learning method with single level threshold.
Å°¿öµå(Keyword) Power Mode Control   QoS   Power Consumption   Autonomous Learning   Prediction Algorithm   Hybrid   Àü¿ø ¸ðµå Á¦¾î   QoS   ¼ÒºñÀü·Â   ÀÚÀ²ÇнÀ   ¿¹Ãø ¾Ë°í¸®Áò   °áÇÕ  
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