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37 lines
1.2 KiB
37 lines
1.2 KiB
Demonstrations of vfsstat, the Linux eBPF/bcc version.
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This traces some common VFS calls and prints per-second summaries. By default,
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the output interval is one second:
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# ./vfsstat
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TIME READ/s WRITE/s CREATE/s OPEN/s FSYNC/s
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18:35:32: 231 12 4 98 0
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18:35:33: 274 13 4 106 0
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18:35:34: 586 86 4 251 0
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18:35:35: 241 15 4 99 0
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18:35:36: 232 10 4 98 0
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18:35:37: 244 10 4 107 0
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18:35:38: 235 13 4 97 0
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18:35:39: 6749 2633 4 1446 0
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18:35:40: 277 31 4 115 0
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18:35:41: 238 16 6 102 0
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18:35:42: 284 50 8 114 0
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^C
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Here we are using an output interval of five seconds, and printing three output
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lines:
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# ./vfsstat 5 3
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TIME READ/s WRITE/s CREATE/s OPEN/s FSYNC/s
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18:35:55: 238 8 3 101 0
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18:36:00: 962 233 4 247 0
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18:36:05: 241 8 3 100 0
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Full usage:
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# ./vfsstat -h
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USAGE: ./vfsstat [interval [count]]
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