You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
37 lines
1.2 KiB
37 lines
1.2 KiB
4 months ago
|
Demonstrations of vfsstat, the Linux eBPF/bcc version.
|
||
|
|
|
||
|
|
|
||
|
|
This traces some common VFS calls and prints per-second summaries. By default,
|
||
|
|
the output interval is one second:
|
||
|
|
|
||
|
|
# ./vfsstat
|
||
|
|
TIME READ/s WRITE/s CREATE/s OPEN/s FSYNC/s
|
||
|
|
18:35:32: 231 12 4 98 0
|
||
|
|
18:35:33: 274 13 4 106 0
|
||
|
|
18:35:34: 586 86 4 251 0
|
||
|
|
18:35:35: 241 15 4 99 0
|
||
|
|
18:35:36: 232 10 4 98 0
|
||
|
|
18:35:37: 244 10 4 107 0
|
||
|
|
18:35:38: 235 13 4 97 0
|
||
|
|
18:35:39: 6749 2633 4 1446 0
|
||
|
|
18:35:40: 277 31 4 115 0
|
||
|
|
18:35:41: 238 16 6 102 0
|
||
|
|
18:35:42: 284 50 8 114 0
|
||
|
|
^C
|
||
|
|
|
||
|
|
|
||
|
|
Here we are using an output interval of five seconds, and printing three output
|
||
|
|
lines:
|
||
|
|
|
||
|
|
# ./vfsstat 5 3
|
||
|
|
TIME READ/s WRITE/s CREATE/s OPEN/s FSYNC/s
|
||
|
|
18:35:55: 238 8 3 101 0
|
||
|
|
18:36:00: 962 233 4 247 0
|
||
|
|
18:36:05: 241 8 3 100 0
|
||
|
|
|
||
|
|
|
||
|
|
Full usage:
|
||
|
|
|
||
|
|
# ./vfsstat -h
|
||
|
|
USAGE: ./vfsstat [interval [count]]
|