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SPOTDELAY.TUSC(1)					     SPOTDELAY.TUSC(1)

NAME
       spotdelay.tusc - A Perl script filter utility that reads through a tusc
       output file, checking for delays and therefore bottlenecks in the  sys‐
       tem calls tusk reports on.

SYNOPSIS
       spotdelay.tusc [-h] [-nNN] [-s PATT] <tusc output file

       cat <tusc output file>|spotdelay.tusc [-nNN] [-s PATT]

DESCRIPTION
       This tool is part of the CIFS WTEC Support Tools suite.

       spotdelay.tusc  is  a  Perl  script that runs through the user provided
       tusc output file looking at the time stamps for each line in  the  tusc
       trace.  It will issue a warning when the following condition holds:
	      Delays  occur  greater  than a specified time between sequential
	      lines in the trace.

       You will have to examine the lines that spotdelay.tusc warns about.

LIMITATIONS
       spotdelay.tusc requires that the tusc trace be taken with the following
       options: -aeflpT.


OPTIONS
       -h     Print a summary of command line options.

       -nNN   Sets  the	 maximum  time	(in  seconds)between lines above which
	      spotdelay.tusc will issue a warning.   For  example  to  see  if
	      there  are  any lines with one tenth of a second or more between
	      them, set this to '.1'.

OUTPUT
       It indicates the line number, system call, and actual  time  that  took
       longer than -nNN seconds to complete.  The output is of the form:

       line:XXXX:YYYYYYYYYY: Z.zzzzzzzzzzzzz s

       Where  XXXX  is	the  line  number, YYYYYYYYY is the name of the system
       call, and Z.zzz... is the actual time spent in the system  call.	 Armed
       with this information, you can vi the tusc file itself to determine the
       events surrounding the system call.  You can also quickly see patterns,
       for  instance  if the majority of the calls taking more than NN seconds
       to complete are the same.

Dependencies
       spotdelay.tusc requires that the tusc trace was captured with  the  op‐
       tions:  -aeflpT.	  It  also  obviously  requires that you have the tusc
       utility to TAKE the trace with.	If it is NOT on your system,  you  can
       acquire it from your HP support representative.	spotdelay.tusc was de‐
       veloped and tested using tusc version 7.5 PL1. Not all versions of tusc
       support	the  required  options	-  be sure you have version 7.5 PL1 or
       higher.

       This script was developed and tested  under  perl(1)  version  5.005_02
       built  for  PA-RISC1.1 . While it may run under previous versions it is
       recommended that you install 5.005_02 or higher for best results.   You
       may  need  to  modify the first line to point to whatever location YOUR
       environment has perl installed.

SEE ALSO
       tusc(1).

AUTHOR
       Don McCall, HP WTEC NOS Support Team .

       tusc was written by Chris R. Bertin, HP Openview Support.

							     SPOTDELAY.TUSC(1)

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