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.
time_audit:timeout = number of milliseconds
This would log VFS calls that take longer than 3 seconds:
[sample_share] m[blue]path = /test/sample_sharem m[blue]vfs objects = time_auditm m[blue]time_audit:timeout = 3000m
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.