nfslogsum - Summarize nfswatch log file
/usr/sbin/nfslogsum [-n] [-v] [logfile]
-n Directs nfslogsum to read only the first n entries in the log file.
This is useful for summarizing log files in cumulative chunks.
-v Produces a verbose summary of the log file.
The nfslogsum command summarizes log files produced by the nfswatch pro-
gram. 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 ses-
sion, 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.
In addition to the summary information printed as described above, a sum-
mary 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 following NFS procedures:
Does nothing. This procedure is provided to allow server response test-
ing and timing.
Gets the file attributes (type, mode, number of links, owner's uid,
owner's gid, size, access, modification and change times, and others).
This procedure is used by the stat(2) system call, as well as several
Sets the 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), and truncate(2).
Gets the file system root. This procedure is obsolete, and has been
replaced by a MOUNT protocol procedure.
Looks up the 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.
Reads from the symbolic link. This procedure is used by the readlink
system call and by the kernel.
Reads data from the file. This procedure is used by the read(2) system
Writes to the cache. Unused in the current NFS protocol revision.
Writes data to a file. This procedure is used by the write(2) system
Creates a file. This procedure is used by the creat(2) and open(2) sys-
Removes a file. This procedure is used by the unlink(2) system call.
Renames a file. This procedure is used by the rename system call.
Creates a link to the file. This procedure is used by the link(2) sys-
Creates a symbolic link to the file. This procedure is used by the sym-
link(2) system call.
Creates a directory. This procedure is used by the mkdir(2) system
Removes a directory. This procedure is used by the rmdir(2) system
Reads entries from a directory. Generally only one READDIR call is
needed per directory, since a variable number of entries can be
Gets file system attributes (transfer size, block size, blocks in use,
blocks free). This procedure is used by the statfs(2) system call.
The nfslogsum utility is sensitive to the format of the log file produced
by nfswatch. Do not edit or change the log file before using it as input to
Commands: nfswatch(8), tcpdump(8)
Networking: bpf(7), packetfilter(7)