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NAME | SYNOPSIS | DESCRIPTION | REPORT | OPTIONS | ENVIRONMENT | BUG | FILE | AUTHORS | SEE ALSO | COLOPHON |
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CIFSIOSTAT(1) Linux User's Manual CIFSIOSTAT(1)
cifsiostat - Report CIFS statistics.
cifsiostat [ -h ] [ -k | -m ] [ -t ] [ -U ] [ -V ] [ -y ] [
--dec={ 0 | 1 | 2 } ] [ --human ] [ -o JSON ] [ --pretty ] [
interval [ count ] ]
The cifsiostat command displays statistics about read and write
operations 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), unless the -y option is used (in
this case, the first report is omitted). Each subsequent report
contains statistics collected during the interval since the
previous report. A report consists 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 generated at interval
seconds apart. If the interval parameter is specified without the
count parameter, the cifsiostat command generates reports
continuously.
The CIFS report provides statistics for each mounted CIFS
filesystem. The report shows the following fields:
Filesystem:
This columns shows the mount point of the CIFS filesystem.
rB/s (rkB/s, rMB/s)
Indicate the average number of bytes (kibibytes, mebibytes)
read per second.
wB/s (wkB/s, wMB/s)
Indicate the average number of bytes (kibibytes, mebibytes)
written per second.
rop/s Indicate the number of 'read' operations that were issued
to the filesystem per second.
wop/s Indicate the number of 'write' operations that were issued
to the filesystem per second.
fo/s Indicate the number of open files per second.
fc/s Indicate the number of closed files per second.
fd/s Indicate the number of deleted files per second.
--dec={ 0 | 1 | 2 }
Specify the number of decimal places to use (0 to 2,
default value is 2).
-h This option is equivalent to specifying --human --pretty.
--human
Print sizes in human readable format (e.g. 1.0k, 1.2M,
etc.) The units displayed with this option supersede any
other default units (e.g. kibibytes, sectors...)
associated with the metrics.
-k Display statistics in kibibytes per second.
-m Display statistics in mebibytes per second.
-o JSON
Display the statistics in JSON (JavaScript Object Notation)
format. JSON output field order is undefined, and new
fields may be added in the future.
--pretty
Make the CIFS report easier to read by a human.
-t Print the time for each report displayed. The timestamp
format may depend on the value of the S_TIME_FORMAT
environment variable (see below) and on whether option -U
has been used.
-U Display timestamp (UTC - Coordinated Universal Time) in
seconds from the epoch.
-V Print version number then exit.
-y Omit first report with statistics since system boot, if
displaying multiple records at given interval.
The cifsiostat command takes into account the following
environment variables:
S_COLORS
By default statistics are displayed in color when the
output is connected to a terminal. Use this variable to
change the settings. Possible values for this variable are
never, always or auto (the latter is equivalent to the
default settings).
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.
S_COLORS_SGR
Specify the colors and other attributes used to display
statistics on the terminal. Its value is a colon-separated
list of capabilities that defaults to
I=32;22:N=34;1:Z=34;22. Supported capabilities are:
I= SGR substring for filesystem names.
N= SGR substring for non-zero statistics values.
Z= SGR substring for zero values.
S_TIME_FORMAT
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.
Although cifsiostat displays units corresponding to kilobytes
(kB), megabytes (MB)..., it actually uses kibibytes (kiB),
mebibytes (MiB)... A kibibyte is equal to 1024 bytes, and a
mebibyte is equal to 1024 kibibytes.
/proc/fs/cifs/Stats contains CIFS statistics.
Written by Ivana Varekova (varekova <at> redhat.com)
Maintained by Sebastien Godard (sysstat <at> orange.fr)
sar(1), pidstat(1), mpstat(1), vmstat(8), iostat(1), tapestat(1),
nfsiostat(1)
https://github.com/sysstat/sysstat
https://sysstat.github.io/
This page is part of the sysstat (sysstat performance monitoring
tools) project. Information about the project can be found at
⟨http://sebastien.godard.pagesperso-orange.fr/⟩. If you have a bug
report for this manual page, send it to sysstat-AT-orange.fr.
This page was obtained from the project's upstream Git repository
⟨https://github.com/sysstat/sysstat.git⟩ on 2025-08-11. (At that
time, the date of the most recent commit that was found in the
repository was 2025-08-04.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Linux JULY 2025 CIFSIOSTAT(1)
Pages that refer to this page: iostat(1)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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