vfs_time_audit man page
vfs_time_audit — samba vfs module to log slow VFS operations
vfs objects = time_audit
This VFS module is part of the samba(7) suite.
The time_audit VFS module logs system calls that take longer than the number of milliseconds defined by the variable time_audit:timeout. It will log the calls and the time spent in it.
It's kind of comparable with strace -T and is helpful to reveal performance problems with the underlying file and storage subsystems.
This module is stackable.
time_audit:timeout = number of milliseconds
VFS calls that take longer than the defined number of milliseconds that should be logged. The default is 10000 (10s).
This would log VFS calls that take longer than 3 seconds:
[sample_share] path = /test/sample_share vfs objects = time_audit time_audit:timeout = 3000
This man page is part of version 4.8.0rc4 of the Samba suite.
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed.
The time_audit VFS module was created with contributions from Abhidnya Chirmule.