如何查看系统接收到的磁盘请求？

在/proc/stat文件中的内容如下：
cpu 98010 44 41468 2007458
cpu0 48057 43 22849 1002541
cpu1 49953 1 18619 1004917
page 185198 98935
swap 1 0
intr 3889989 1073490 4 0 0 0 0 2 0 1 0 0 0 0 0 29404 514144 875049 0 0 10203 0 0 1387692 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
disk_io: (3,0)29415,17330,369489,12085,197844) (3,1)21,21,264,0,0)
ctxt 15047563
btime 1099811265
processes 2594

那个才是系统接收到的磁盘请求？？？？