NAME

       nfslogsum - summarize nfswatch log file

SYNOPSIS

       nfslogsum [ -n ] [ -v ] [ logfile ]

DESCRIPTION

       nfslogsum summarizes log files produced by the nfswatch program.  By default the log file nfswatch.log is
       summarized; an alternate log file can be specified on the command line.

       Each nfswatch log file may contain one or more log sessions, each indicated by a header which is  printed
       when  logging  is  turned  on.  For each log session, nfslogsum tallies up the interval packet totals and
       prints out a one-page summary of the log session.  Total packets and percentages are tabulated  for  each
       category and displayed.

       The  -n  option  tells  nfslogsum  to  read only the first n entries in the log file.  This is useful for
       summarizing log files in cumulative ``chunks''.

       If the -v option is given, nfslogsum will produce a ``verbose'' summary of the log file.  In addition  to
       the  summary  information  printed  as described above, a summary of how many calls to each NFS procedure
       were made on each file system and individual file will be printed.  This summary information  is  divided
       into  three  sections  of  six  columns each.  The columns are headed by the names of the NFS procedures;
       these are described briefly below:

       NULLPROC
              Do nothing.  This procedure is provided to allow server response testing and timing.

       GETATTR
              Get file attributes (type, mode,  number  of  links,  owner's  uid,  owner's  gid,  size,  access,
              modification  and change times, etc.).  This procedure is used by the stat(2) system call, as well
              as several others.

       SETATTR
              Set file attributes  (mode, owner's uid, owner's gid,  size  in  bytes,  access  and  modification
              times).   This  procedure  is used by system calls such as chmod(2), chown(2), truncate(2), and so
              on.

       GETROOT
              Get file system root.  This procedure is obsolete, and has  been  replaced  by  a  MOUNT  Protocol
              procedure.

       LOOKUP Look up file name.  This procedure is used to obtain an initial file handle for use in current and
              future requests on that file, and is used by many different system calls.

       READLINK
              Read from symbolic link.  This procedure is used by the readlink system call, and by the kernel.

       READ   Read data from file.  This procedure is used by the read(2) system call.

       WCACHE Write to cache.  Unused in the current NFS protocol revision.

       WRITE  Write data to file.  This procedure is used by the write(2) system call.

       CREATE Create file.  This procedure is used by the creat(2) and open(2) system calls.

       REMOVE Remove file.  This procedure is used by the unlink(2) system call.

       RENAME Rename file.  This procedure is used by the rename system call.

       LINK   Create link to file.  This procedure is used by the link(2) system call.

       SYMLINK
              Create symbolic link to file.  This procedure is used by the symlink(2) system call.

       MKDIR  Create directory.  This procedure is used by the mkdir(2) system call.

       RMDIR  Remove directory.  This procedure is used by the rmdir(2) system call.

       READDIR
              Read entries from directory.  Generally only one READDIR call is needed  per  directory,  since  a
              variable number of entries can be returned.

       STATFS Get  file  system  attributes  (transfer  size,  block  size,  blocks  in use, blocks free).  This
              procedure is used by the statfs(2) system call.

SEE ALSO

       nfswatch(8)

BUGS

       nfslogsum is exteremely sensitive to the format of the log file  produced  by  nfswatch.   The  log  file
       should not be edited or changed before feeding it to nfslogsum.

AUTHOR

       David A. Curry
       Purdue University
       Engineering Computer Network
       1285 Electrical Engineering Building
       West Lafayette, IN 47907-1285
       davy@ecn.purdue.edu