# diff -c /tmp/oldmanpage.txt /tmp/newmanpage.txt 
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--- /tmp/newmanpage.txt	Wed Sep 23 08:54:18 2009
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       system and in applications
  
  SYNOPSIS
!      latencytop [-o log file] [-k log-level] [-t interval] [-f]
! 		[-s] [-l log interval] [-h]
  
  DESCRIPTION
       LatencyTOP is an observability tool that reports statistics
--- 5,12 ----
       system and in applications
  
  SYNOPSIS
!      latencytop [-t interval] [-o log-file] [-k log-level] [c
config-file]
! 		[-f (no)feature,...] [-l log-interval] [-h]
  
  DESCRIPTION
       LatencyTOP is an observability tool that reports statistics
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*** 45,56 ****
  OPTIONS
       The following options are supported:
  
!      -o [log file]
  
           Specifies the log file where output will be written. The
     default log file is /var/log/latencytop.log.
  
!      -k [log level]
  
           Specifies  the level of  logging  in the log file. Valid
           values are: 0 = none (default), 1 = unknown, and 2 = all;
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  OPTIONS
       The following options are supported:
  
!      -o [log-file]
  
           Specifies the log file where output will be written. The
     default log file is /var/log/latencytop.log.
  
!      -k [log-level]
  
           Specifies  the level of  logging  in the log file. Valid
           values are: 0 = none (default), 1 = unknown, and 2 = all;
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           collects statistics from the system. The possible values
           are between 1 and 60; the default is 5 seconds.
  
!      -f
  
! 	 Filter large interruptible latencies (e.g. sleep).
  
!      -s
  
!          Monitors the sched (PID=0) process for any latency.
  
       -l [log-interval]
  
           Writes data to the log file every log-interval seconds;
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           collects statistics from the system. The possible values
           are between 1 and 60; the default is 5 seconds.
  
!      -f, --feature [no]feature1,[no]feature2,...
! 	
! 	 Enables/disables features in LatencyTOP. Features can only
! 	 be one of the following :
  
!     		[no]filter: Filter large interruptible latencies,
! 			e.g. sleep. Default: off
  
!     		[no]sched: Monitors sched (PID=0). Default: off
  
!     		[no]sobj: Monitors synchronize objects. Default: on
  
+     		[no]low: Lower overhead by sampling small latencies.
+ 			Enabling this feature will lower CPU utilization
+ 			by estimating small latencies statistically.
+ 			Use it for heavy workloads such as a very busy
+ 			web server. Default: off
+ 
       -l [log-interval]
  
           Writes data to the log file every log-interval seconds;
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--- 115,129 ----
  
         % latencytop -l 2
  
+      Example 4 Enabling tracing of latencies caused by synchronization
+ 	objects.
  
+      The following command enables the tracing of latencies caused by
+ 	synchronization objects.
+ 
+        % latencytop -f sobj
+ 
+ 
  EXIT STATUS
       0
  
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  SEE ALSO
       kstat(1M), dtrace(1M)
  
-      Among  non-SunOS  man  pages,  xscreensaver(1),   from   the
-      OpenWindows man pages.
- 
  USAGE
       You must have DTrace privileges to run LatencyTOP. 
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