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