47 lines
1.1 KiB
Plaintext
47 lines
1.1 KiB
Plaintext
.TH iofileb.d 1m "$Date:: 2007-08-05 #$" "USER COMMANDS"
|
|
.SH NAME
|
|
iofileb.d \- I/O bytes by file and process. Uses DTrace.
|
|
.SH SYNOPSIS
|
|
.B iofileb.d
|
|
.SH DESCRIPTION
|
|
This prints a summary of requested disk activity by pathname,
|
|
providing totals of the I/O events in bytes. It is a companion to the
|
|
iofile.d script - which prints in terms of I/O wait time, not bytes.
|
|
I/O wait time is a better metric for understanding performance issues.
|
|
Both disk and NFS I/O are measured.
|
|
|
|
Since this uses DTrace, only the root user or users with the
|
|
dtrace_kernel privilege can run this command.
|
|
.SH OS
|
|
Solaris
|
|
.SH STABILITY
|
|
stable - needs the io provider.
|
|
.SH EXAMPLES
|
|
.TP
|
|
Sample until Ctrl\-C is hit then print report,
|
|
#
|
|
.B iofileb.d
|
|
.PP
|
|
.SH FIELDS
|
|
.TP
|
|
PID
|
|
process ID
|
|
.TP
|
|
CMD
|
|
process name
|
|
.TP
|
|
KB
|
|
kilobytes of disk I/O
|
|
.TP
|
|
FILE
|
|
file pathname
|
|
.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
|
|
iofileb.d will sample until Ctrl\-C is hit.
|
|
.SH SEE ALSO
|
|
iofile.d(1M), iosnoop(1M), dtrace(1M)
|