nfsvis(1) — Linux manual page

NFSVIS(1)                General Commands Manual                NFSVIS(1)

NAME         top

       nfsvis - visualize performance of NFS statistics

SYNOPSIS         top

       nfsvis [-V] [-c version] [-m maxrate] [-s version] [pmview
       options]

DESCRIPTION         top

       nfsvis displays a three dimensional bar chart of NFS request
       statistics.  The display is updated with new values retrieved from
       the target host or archive every interval seconds (default is 2
       seconds).

       Two blocks of statistics are displayed - one for the NFS server
       and one for the NFS client requests.  The height of the bars is
       proportional to the rate at which the various request types are
       processed.

       nfsvis generates a pmview(1) configuration file, and passes most
       command line options to pmview(1).  Therefore, the command line
       options -A, -a, -C, -h, -n, -O, -p, -S, -t, -T, -Z and -z, and the
       user interface are described in the pmview(1) man page.

COMMAND LINE OPTIONS         top

       The nfsvis specific options are:

       -c     Monitor NFS version 2 or 3 client metrics.  The default is
              version 2.

       -m     Use maxrate as the maximum NFS request rate over all
              classes of request, from which the height of the bars is
              computed.  This effectively specifies the height at which
              bars will be clipped.

       -s     Monitor NFS version 2 or 3 server metrics.  The default is
              version 2.

       -V     Verbose mode - output the generated pmview(1) configuration
              file.

FILES         top

       $PCP_VAR_DIR/config/pmlogger/config.nfsvis
              A pmlogger(1) configuration file for nfsvis metrics.
       $PCP_SHARE_DIR/lib/pmview-args
              Shell procedures for parsing pmview(1) command line
              options.

PCP ENVIRONMENT         top

       Environment variables with the prefix PCP_ are used to
       parameterize the file and directory names used by PCP.  On each
       installation, the file /etc/pcp.conf contains the local values for
       these variables.  The $PCP_CONF variable may be used to specify an
       alternative configuration file, as described in pcp.conf(4).

SEE ALSO         top

       dkvis(1), mpvis(1), pmchart(1), pmlogger(1) and pmview(1).

       The NFS view for pmchart(1).

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at 
       ⟨http://www.pcp.io/⟩.  If you have a bug report for this manual
       page, send it to pcp@groups.io.  This page was obtained from the
       project's upstream Git repository
       ⟨https://github.com/performancecopilot/pcp.git⟩ on 2025-08-11.
       (At that time, the date of the most recent commit that was found
       in the repository was 2025-08-11.)  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

Performance Co-Pilot                                            NFSVIS(1)

Pages that refer to this page: clustervis(1),  dkvis(1),  mpvis(1),  pmview(1)

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