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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 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). Each subsequent
report contains statistics collected during the interval since the previous report. A re-
port consists of a CIFS header row followed by a line of statistics for each CIFS filesys-
tem that is mounted. The count parameter can be specified in conjunction with the inter-
val parameter. If the count parameter is specified, the value of count determines the num-
ber of reports generated at interval seconds apart. If the interval parameter is specified
without the count parameter, the cifsiostat command generates reports continuously.
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) 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.
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 ter-
minal. 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 ig-
nored 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 actually 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), nfsiostat(1)
https://github.com/sysstat/sysstat
http://pagesperso-orange.fr/sebastien.godard/
Linux JULY 2020 CIFSIOSTAT(1)
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