mojave man page for fddist

Query: fddist

OS: mojave

Section: 1m

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

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)
Related Man Pages
bitesize.d(1m) - mojave
fddist(1m) - osx
priclass.d(1m) - osx
syscallbypid.d(1m) - mojave
priclass.d(1m) - mojave
Similar Topics in the Unix Linux Community
Some command line docs
stderr in background process
RHCE Exam Sample Papers
Average of columns with values of other column with same name
Find Memory and activity from command output