.TH rwtop 1m "Jul 24, 2005" "version 0.70" "USER COMMANDS" .SH NAME rwtop \- display top read/write bytes process. Uses DTrace. .SH SYNOPSIS .B rwtop [\-Cc] [\-j|\-Z] [\-n name] [\-p PID] [\-t top] [interval [count]] .SH DESCRIPTION This is measuring reads and writes at the application level. This matches read and write system calls. Since this uses DTrace, only the root user or users with the dtrace_kernel privilege can run this command. .SH OPTIONS .TP \-C don't clear the screen .TP \-c print counts .TP \-j print project ID .TP \-Z print zone ID .TP \-n name process name to track .TP \-p PID PID to track .TP \-t top print top number only .PP .SH EXAMPLES .TP Default output, print summary every 5 seconds # .B rwtop .PP .TP One second samples, # .B rwtop 1 .TP Print top 10 lines only, # .B rwtop \-t 10 .TP Monitor processes named "bash", # .B rwtop \-n bash .TP Print 12 x 5 second samples, scrolling, # .B rwtop \-C 5 12 .PP .SH FIELDS .TP PROJ project ID .TP ZONE zone ID .TP UID user ID .TP PID process ID .TP PPID parent process ID .TP CMD command name for the process .TP D direction, Read or Write .TP BYTES total bytes during sample .TP load 1 minute load average .TP app_r total read Kb for sample .TP app_w total write Kb for sample .PP .SH DOCUMENTATION See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with verbose descriptions explaining the output. .SH EXIT rwtop will run forever until Ctrl\-C is hit, or the specified interval is reached. .SH AUTHOR Brendan Gregg [Sydney, Australia] .SH SEE ALSO iotop(1M), dtrace(1M)