CIFSIOSTAT(1) Linux User’s Manual CIFSIOSTAT(1)
cifsiostat – Report CIFS statistics.
cifsiostat [ -h ] [ -k | -m ] [ -t ] [ -V ] [ interval [ count ] ]
The cifsiostat command displays statistics about read and write opera‐
tions on CIFS filesystems.
The interval parameter specifies the amount of time in seconds between
each report. The first report contains statistics for the time since
system startup (boot). Each subsequent report contains statistics col‐
lected during the interval since the previous report. A report con‐
sists of a CIFS header row followed by a line of statistics for each
CIFS filesystem that is mounted. The count parameter can be specified
in conjunction with the interval parameter. If the count parameter is
specified, the value of count determines the number of reports gener‐
ated at interval seconds apart. If the interval parameter is specified
without the count parameter, the cifsiostat command generates reports
The CIFS report provides statistics for each mounted CIFS filesystem.
The report shows the following fields:
This columns shows the mount point of the CIFS filesystem.
rB/s (rkB/s, rMB/s)
Indicate the average number of bytes (kilobytes, megabytes) read
wB/s (wkB/s, wMB/s)
Indicate the average number of bytes (kilobytes, megabytes)
written per second.
Indicate the number of ‘read’ operations that were issued to the
filesystem per second.
Indicate the number of ‘write’ operations that were issued to
the filesystem per second.
Indicate the number of open files per second.
Indicate the number of closed files per second.
Indicate the number of deleted files per second.
-h Make the CIFS report easier to read by a human.
-k Display statistics in kilobytes per second.
-m Display statistics in megabytes per second.
-t Print the time for each report displayed. The timestamp format
may depend on the value of the S_TIME_FORMAT environment vari‐
able (see below).
-V Print version number then exit.
The cifsiostat command takes into account the following environment
When this variable is set, display statistics in color on the
terminal. Possible values for this variable are never, always
or auto (the latter is the default).
Please note that the color (being red, yellow, or some other
color) used to display a value is not indicative of any kind of
issue simply because of the color. It only indicates different
ranges of values.
Specify the colors and other attributes used to display statis‐
tics on the terminal. Its value is a colon-separated list of
capabilities that defaults to I=32;22:N=33;1:Z=33;22. Supported
I= SGR substring for filesystem names.
N= SGR substring for non-zero statistics values.
Z= SGR substring for zero values.
If this variable exists and its value is ISO then the current
locale will be ignored when printing the date in the report
header. The cifsiostat command will use the ISO 8601 format
(YYYY-MM-DD) instead. The timestamp displayed with option -t
will also be compliant with ISO 8601 format.
/proc filesystem must be mounted for cifsiostat to work.
/proc/fs/cifs/Stats contains CIFS statistics.
Written by Ivana Varekova (varekova
Maintained by Sebastien Godard (sysstat
Linux OCTOBER 2015 CIFSIOSTAT(1)