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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  filesys‐
       tems.

       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 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 pa‐
       rameter, 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 sec‐
              ond.

       wop/s  Indicate the number of 'write' operations that were issued to the filesystem per  sec‐
              ond.

       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  termi‐
              nal.   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 in‐
              dicates 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.


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)