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fddist(1m) [osx man page]

fddist(1m)							   USER COMMANDS							fddist(1m)

NAME
fddist - file descriptor usage distributions. Uses DTrace. SYNOPSIS
fddist [-r|-w] DESCRIPTION
This prints distributions for read and write events by file descriptor, by process. This can be used to determine which file descriptor a process is doing the most I/O with. Since this uses DTrace, only users with root privileges can run this command. OPTIONS
-r reads only -w writes only EXAMPLES
Sample both read and write activity, # fddist Sample reads only, # fddist -r FIELDS
EXEC process name PID process ID value file descriptor count number of events BASED ON
/usr/demo/dtrace/lquantize.d DOCUMENTATION
DTrace Guide "Aggregations" chapter (docs.sun.com) See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver- bose descriptions explaining the output. EXIT
fddist will sample until Ctrl-C is hit. SEE ALSO
dtrace(1M) version 0.70 Jun 08, 2005 fddist(1m)

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sigdist.d(1m)							   USER COMMANDS						     sigdist.d(1m)

NAME
sigdist.d - signal distribution by process. Uses DTrace. SYNOPSIS
sigdist.d DESCRIPTION
This is a simple DTrace script that prints the number of signals recieved by process and signal number. This script is also available as /usr/demo/dtrace/sig.d, where it originates. Since this uses DTrace, only users with root privileges can run this command. EXAMPLES
This samples until Ctrl-C is hit. # sigdist.d FIELDS
SENDER process name of sender RECIPIENT process name of target SIG signal number, see signal(3head) COUNT number of signals sent BASED ON
/usr/demo/dtrace/sig.d DOCUMENTATION
DTrace Guide "proc Provider" chapter (docs.sun.com) See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver- bose descriptions explaining the output. EXIT
sigdist.d will sample until Ctrl-C is hit. SEE ALSO
kill.d(1M), dtrace(1M) version 1.00 Jun 09, 2005 sigdist.d(1m)
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