CIFSIOSTAT(1) Linux User's Manual CIFSIOSTAT(1)
NAME
cifsiostat - Report CIFS statistics.
SYNOPSIS
cifsiostat [ -h ] [ -k | -m ] [ -t ] [ -V ] [ --dec={ 0 | 1 | 2 } ] [
--human ] [ --pretty ] [ interval [ count ] ]
DESCRIPTION
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 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 spec-
ified, 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 continu-
ously.
REPORT
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 (kilobytes, megabytes) read
per second.
wB/s (wkB/s, wMB/s)
Indicate the average number of bytes (kilobytes, megabytes) writ-
ten 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.
OPTIONS
--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. kilobytes, sectors...) associated with the metrics.
-k Display statistics in kilobytes per second.
-m Display statistics in megabytes per second.
--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).
-V Print version number then exit.
ENVIRONMENT
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 set-
tings. 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 statis-
tics on the terminal. Its value is a colon-separated list of ca-
pabilities 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 lo-
cale 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.
BUG
/proc filesystem must be mounted for cifsiostat to work.
Although cifsiostat speaks of kilobytes (kB), megabytes (MB)..., it ac-
tually uses kibibytes (kiB), mebibytes (MiB)... A kibibyte is equal to
1024 bytes, and a mebibyte is equal to 1024 kibibytes.
FILE
/proc/fs/cifs/Stats contains CIFS statistics.
AUTHORS
Written by Ivana Varekova (varekova <at> redhat.com)
Maintained by Sebastien Godard (sysstat <at> orange.fr)
SEE ALSO
sar(1), pidstat(1), mpstat(1), vmstat(8), iostat(1), tapestat(1), nfsio-
stat(1)
https://github.com/sysstat/sysstat
https://sysstat.github.io/
Linux AUGUST 2023 CIFSIOSTAT(1)
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