'\" t .\" Title: vfs_time_audit .\" Author: [see the "AUTHOR" section] .\" Generator: DocBook XSL Stylesheets vsnapshot .\" Date: 10/23/2023 .\" Manual: System Administration tools .\" Source: Samba 4.19.2-git.328.e4c431e307f150600.1.23SUSE-oS15.0-x86_64 .\" Language: English .\" .TH "VFS_TIME_AUDIT" "8" "10/23/2023" "Samba 4\&.19\&.2\-git\&.328\&." "System Administration tools" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" vfs_time_audit \- samba vfs module to log slow VFS operations .SH "SYNOPSIS" .HP \w'\ 'u vfs objects = time_audit .SH "DESCRIPTION" .PP This VFS module is part of the \fBsamba\fR(7) suite\&. .PP 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\&. .PP It\*(Aqs kind of comparable with strace \-T and is helpful to reveal performance problems with the underlying file and storage subsystems\&. .PP This module is stackable\&. .SH "OPTIONS" .PP time_audit:timeout = number of milliseconds .RS 4 VFS calls that take longer than the defined number of milliseconds that should be logged\&. The default is 10000 (10s)\&. .RE .SH "EXAMPLES" .PP This would log VFS calls that take longer than 3 seconds: .sp .if n \{\ .RS 4 .\} .nf \fI[sample_share]\fR \m[blue]\fBpath = /test/sample_share\fR\m[] \m[blue]\fBvfs objects = time_audit\fR\m[] \m[blue]\fBtime_audit:timeout = 3000\fR\m[] .fi .if n \{\ .RE .\} .SH "VERSION" .PP This man page is part of version 4\&.19\&.2\-git\&.328\&.e4c431e307f150600\&.1\&.23SUSE\-oS15\&.0\-x86_64 of the Samba suite\&. .SH "AUTHOR" .PP 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\&. .PP The time_audit VFS module was created with contributions from Abhidnya Chirmule\&.