blob: c29cb086b832a3695b0262f9775f0d75ccbae564 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
The following is a short sample of output from the fspaging.d script.
fspaging.d traces syscall read and writes, vnode interface reads, writes,
getpage and putpage, and disk io.
# ./fspaging.d
Event Device RW Size Offset Path
disk_io dad1 R 1024 0 /extra1
disk_io dad1 R 8192 0 <none>
disk_io dad1 R 2048 0 <none>
sc-write . W 51200 0 /extra1/outfile
fop_write . W 51200 0 /extra1/outfile
fop_getpage . R 8192 0 /extra1/50k
disk_io dad1 R 8192 0 /extra1/50k
disk_ra dad1 R 8192 8 /extra1/50k
fop_getpage . R 8192 8 /extra1/50k
disk_ra dad1 R 34816 16 /extra1/50k
fop_getpage . R 8192 16 /extra1/50k
fop_getpage . R 8192 24 /extra1/50k
fop_getpage . R 8192 32 /extra1/50k
fop_getpage . R 8192 40 /extra1/50k
fop_getpage . R 8192 48 /extra1/50k
fop_putpage . W 8192 0 /extra1/outfile
fop_putpage . W 8192 8 /extra1/outfile
fop_putpage . W 8192 16 /extra1/outfile
fop_putpage . W 8192 24 /extra1/outfile
fop_putpage . W 8192 32 /extra1/outfile
fop_putpage . W 8192 40 /extra1/outfile
disk_io dad1 W 51200 0 /extra1/outfile
For a full discussion of this example, see fsrw_example.txt.
|
