Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Current Result Document : 8 / 8
ÀÌÀü°Ç
ÇѱÛÁ¦¸ñ(Korean Title) |
SSD ÀÔÃâ·Â ¿äû ½ºÆ®¸²µéÀÇ QoS Áö¿øÀ» À§ÇÑ Ç÷¡½Ã ¿¬»ê ±×·ì ½ºÄÉÁÙ¸µ |
¿µ¹®Á¦¸ñ(English Title) |
Flash Operation Group Scheduling for Supporting QoS of SSD I/O Request Streams |
ÀúÀÚ(Author) |
ÀÌÀº±Ô
¿ø¼±
ÀÌÁØ¿ì
±è°Èñ
³²ÀÌÇö
Eungyu Lee
Sun Won
Joonwoo Lee
Kanghee Kim
Eyeehyun Nam
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¿ø¹®¼ö·Ïó(Citation) |
VOL 42 NO. 12 PP. 1480 ~ 1485 (2015. 12) |
Çѱ۳»¿ë (Korean Abstract) |
ÃÖ±Ù¿¡ ¼¹ö ½Ã½ºÅÛ¿¡¼ SSD(Solid-State Drive)°¡ °í¼º´É ÀúÀåÀåÄ¡ ¹× ij½Ã·Î¼ ¸¹ÀÌ »ç¿ëµÊ¿¡ µû¶ó ´Ù¾çÇÑ ¼¹ö ÀÀ¿ëµéÀÇ ÀÔÃâ·Â ¿äû ½ºÆ®¸²µéÀ» À§ÇØ SSD ¼öÁØ¿¡¼ ¼ºñ½º Ç°Áú(Quality-of-Service)¸¦ Á¦°øÇÒ ¼ö ÀÖ´ÂÁö¿¡ ´ëÇÑ °ü½ÉÀÌ ³ô¾ÆÁö°í ÀÖ´Ù. ÇöÀç±îÁö ´ëºÎºÐÀÇ SSD´Â SATA ¹ö½º »ó¿¡¼ AHCI ÄÁÆ®·Ñ·¯¸¦ »ç¿ëÇؿԱ⠶§¹®¿¡ °¢ ÀÔÃâ·Â ½ºÆ®¸²À» SSD ³»ºÎ¿¡¼ ±¸º°ÇÏ¿© ¼ºñ½ºÇÒ ¼ö°¡ ¾ø¾ú´Ù. ±×·¯³ª, ÃÖ±Ù¿¡ »õ·Î¿î SSD ÀÎÅÍÆäÀ̽º·Î¼ PCI Express ¹ö½º »ó¿¡¼ NVME ÄÁÆ®·Ñ·¯°¡ Á¦¾ÈµÊ¿¡ µû¶ó °¢ ÀÔÃâ·Â ½ºÆ®¸²À» SSD ³»ºÎ¿¡¼ ±¸º°ÇÒ ¼ö ÀÖ°Ô µÇ¾ú°í, ÀÌ¿¡ µû¶ó ÀÔÃâ·Â ¿äûµéÀ» ½ºÄÉÁÙ¸µ ÇÒ ¼ö ÀÖ°Ô µÇ¾ú´Ù. º» ³í¹®Àº NVME ±â¹Ý Ç÷¡½Ã ÀúÀå ÀåÄ¡¸¦ À§ÇÑ Ç÷¡½Ã ¿¬»ê ±×·ì ½ºÄÉÁÙ¸µ(Flash Operation Group Scheduling)À» Á¦¾ÈÇÏ°í, °¡ÁßÄ¡¿¡ µû¶ó ÀÔÃâ·Â ½ºÆ®¸²º°·Î ºñ·Ê ÁöºÐ ´ë¿ªÆøÀ» Á¦°øÇÒ ¼ö ÀÖÀ½À» QEMU ±â¹Ý ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ º¸ÀδÙ. |
¿µ¹®³»¿ë (English Abstract) |
As SSDs are increasingly being used as high-performance storage or caches, attention is increasingly paid to the provision of SSDs with Quality-of-Service for I/O request streams of various applications in server systems. Since most SSDs are using the AHCI controller interface on a SATA bus, it is not possible to provide a differentiated service by distinguishing each I/O stream from others within the SSD. However, since a new SSD interface, the NVME controller interface on a PCI Express bus, has been proposed, it is now possible to recognize each I/O stream and schedule I/O requests within the SSD for differentiated services. This paper proposes Flash Operation Group Scheduling within NVME-based flash storage devices, and demonstrates through QEMU-based simulation that we can achieve a proportional bandwidth share for each I/O stream. |
Å°¿öµå(Keyword) |
Ç÷¡½Ã ÀúÀå ÀåÄ¡
solid-state drive
¼ºñ½º Ç°Áú
NVME
Ç÷¡½Ã ¿¬»ê ½ºÄÉÁÙ¸µ
flash storage device
solid-state drive
quality of service
non-volatile memory express
flash operation scheduling
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