C-Aware: A Cache Management Algorithm Considering Cache Media Access Characteristic in Cloud Computing

Table 3

Web search simulation test results.

		Average seek time 2.0 ms			Average seek time 3.5 ms
	Direct	C-Aware	D-Cache	dm-Cache	C-Aware	D-Cache	dm-Cache
Cache size 1.25 G
Average response time (ms)	200.587	162.068	266.522	266.527	171.770	967.141	967.145
Hit ratio (%)		52.24	63.80	63.80	49.59	63.80	63.80
Cache replacement		936005	1217932	1217932	874800	1217932	1217932
Direct I/O	4381687	928748	176	176	1130607	176	176
Cache size 2.5 G
Average response time (ms)		140.017	242.872	242.873	151.863	941.943	941.943
Hit ratio (%)		63.92	71.94	71.94	61.74	71.94	71.94
Cache replacement		714641	866160	866160	669189	866160	866160
Direct I/O		593114	104	104	753693	104	104
Cache size 12.5 G
Average response time (ms)		74.244	129.943	129.944	355.029	829.776	829.777
Hit ratio (%)		96.23	98.02	98.02	95.39	98.02	98.02
Cache replacement		8024	9959	9959	7304	9959	9959
Direct I/O		93425	46	46	136094	46	46