1Demonstrations of vfscount, the Linux eBPF/bcc version. 2 3 4This counts VFS calls, by tracing all kernel functions beginning with "vfs_": 5 6# ./vfscount 7Tracing... Ctrl-C to end. 8^C 9ADDR FUNC COUNT 10ffffffff811f3c01 vfs_create 1 11ffffffff8120be71 vfs_getxattr 2 12ffffffff811f5f61 vfs_unlink 2 13ffffffff81236ca1 vfs_lock_file 6 14ffffffff81218fb1 vfs_fsync_range 6 15ffffffff811ecaf1 vfs_fstat 319 16ffffffff811e6f01 vfs_open 475 17ffffffff811ecb51 vfs_fstatat 488 18ffffffff811ecac1 vfs_getattr 704 19ffffffff811ec9f1 vfs_getattr_nosec 704 20ffffffff811e80a1 vfs_write 1764 21ffffffff811e7f71 vfs_read 2283 22 23This can be useful for workload characterization, to see what types of 24operations are in use. 25 26You can edit the script to customize what kernel functions are matched. 27