syscallbyproc.d(1m) [mojave man page]

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

NAME

       syscallbyproc.d - syscalls by process name. Uses DTrace.

SYNOPSIS

       syscallbyproc.d

DESCRIPTION

       syscallbyproc.d is a DTrace OneLiner to a report of the number of system calls made by process name.

       This is useful to identify which process is causing the most system calls.

       Docs/oneliners.txt and Docs/Examples/oneliners_examples.txt in the DTraceToolkit contain this as a oneliner that can be cut-n-paste to run.

       Since this uses DTrace, only users with root privileges can run this command.

EXAMPLES

       This samples until Ctrl-C is hit.
	      # syscallbyproc.d

FIELDS

       first field
	      This  is the process name. There may be several PIDs that have the same process name, for example with numerous instances of "bash".
	      The value reported will be the sum of them all.

       second field
	      This is the count, the number of system calls made.

DOCUMENTATION

       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

       syscallbyproc.d will sample until Ctrl-C is hit.

AUTHOR

       Brendan Gregg [Sydney, Australia]

SEE ALSO

       procsystime(1M), dtrace(1M), truss(1)

version 1.00							   May 15, 2005 					       syscallbyproc.d(1m)

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

NAME

       filebyproc.d - snoop opens by process name. Uses DTrace.

SYNOPSIS

       filebyproc.d

DESCRIPTION

       filebyproc.d  is  a DTrace OneLiner to print file pathnames as they are opened, including the name of the process calling the open.  A line
       will be printed regardless of whether the open is actually successful or not.

       This is useful to learn which files applications are attempting to open, such as config files, database files, log files, etc.

       Docs/oneliners.txt and Docs/Examples/oneliners_examples.txt in the DTraceToolkit contain this as a oneliner that can be cut-n-paste to run.

       Since this uses DTrace, only users with root privileges can run this command.

EXAMPLES

       This prints new process name and pathnames until Ctrl-C is hit.
	      # filebyproc.d

FIELDS

       CPU    The CPU that recieved the event

       ID     A DTrace probe ID for the event

       FUNCTION:NAME
	      The DTrace probe name for the event

       remaining fields
	      The first is the name of the process, the second is the file pathname.

DOCUMENTATION

       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

       filebyproc.d will run forever until Ctrl-C is hit.

AUTHOR

       Brendan Gregg [Sydney, Australia]

SEE ALSO

       opensnoop(1M), dtrace(1M), truss(1)

version 1.00							   May 15, 2005 						  filebyproc.d(1m)