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27 lines
1.0 KiB
27 lines
1.0 KiB
Demonstrations of vfscount, the Linux eBPF/bcc version.
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This counts VFS calls, by tracing all kernel functions beginning with "vfs_":
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# ./vfscount
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Tracing... Ctrl-C to end.
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^C
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ADDR FUNC COUNT
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ffffffff811f3c01 vfs_create 1
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ffffffff8120be71 vfs_getxattr 2
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ffffffff811f5f61 vfs_unlink 2
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ffffffff81236ca1 vfs_lock_file 6
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ffffffff81218fb1 vfs_fsync_range 6
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ffffffff811ecaf1 vfs_fstat 319
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ffffffff811e6f01 vfs_open 475
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ffffffff811ecb51 vfs_fstatat 488
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ffffffff811ecac1 vfs_getattr 704
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ffffffff811ec9f1 vfs_getattr_nosec 704
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ffffffff811e80a1 vfs_write 1764
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ffffffff811e7f71 vfs_read 2283
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This can be useful for workload characterization, to see what types of
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operations are in use.
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You can edit the script to customize what kernel functions are matched.
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