identify the unix process performing high disk i/o reads and writes Post: 302276672

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LEARN ABOUT OSX

creatbyproc.d

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

NAME

       creatbyproc.d - snoop creat()s by process name. Uses DTrace.

SYNOPSIS

       creatbyproc.d

DESCRIPTION

       creatbyproc.d is a DTrace OneLiner to print file creations as it occurs, including the name of the process calling the open.

       This  matches  file  creates  from the creat() system call; not all file creation occurs in this way, sometimes it is through open() with a
       O_CREAT flag, this script will not monitor that activity.

       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 process names and new pathnames until Ctrl-C is hit.
	      # creatbyproc.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

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

AUTHOR

       Brendan Gregg [Sydney, Australia]

SEE ALSO

       dtrace(1M)

version 1.00							   Jun 11, 2005 						 creatbyproc.d(1m)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sh script that reads/writes based upon contents of a file

Discussion started by: rdudejr

2. Shell Programming and Scripting

identify the unix processes performing high disk i/o reads and writes

Discussion started by: avsswamy

3. Shell Programming and Scripting

Unix Script to find and kill a process with high memory utilization

Discussion started by: robinforlinux

4. Filesystems, Disks and Memory

Does vmstat -d give a count of actual physical writes/reads done to/from hard disk?

Discussion started by: jake24