NAME

       cifsiostat - Report CIFS statistics.

SYNOPSIS

       cifsiostat  [  -h  ]  [  -k | -m ] [ -t ] [ -V ] [ -y ] [ --dec={ 0 | 1 | 2 } ] [ --human ] [ -o JSON ] [
       --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), 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.

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 (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.

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.  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).

       -V     Print version number then exit.

       -y     Omit  first  report  with  statistics  since  system boot, if displaying multiple records at given
              interval.

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 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.

BUG

       /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.

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
       https://sysstat.github.io/

Linux                                             JANUARY 2025                                     CIFSIOSTAT(1)