diskhits 1m "$Date: 2015/09/30 22:01:09 $" "USER COMMANDS"
NAME
diskhits - disk access by file offset. Uses DTrace.
SYNOPSIS
diskhits pathname DESCRIPTION
This prints how a file was accessed, the locations on a distribution plot.
This is for the cache misses only - the file activity that resulted in
disk events.
Since this uses DTrace, only the root user or users with the
dtrace_kernel privilege can run this command.
OS
Solaris
STABILITY
stable - needs the io provider.
EXAMPLES
Sample /var/adm/messages disk activity, # diskhits /var/adm/messages
FIELDS
Location (KB) the file offset of the disk activity, Kbytes
Size (KB) size of the disk activity, Kbytes
Total RW Total disk activity, reads + writes
BASED ON
/usr/demo/dtrace/applicat.d
DOCUMENTATION
DTrace Guide "io Provider" chapter (docs.sun.com)
See the DTraceToolkit for further documentation under the
Docs directory. The DTraceToolkit docs may include full worked
examples with verbose descriptions explaining the output.
EXIT
diskhits will sample until Ctrl-C is hit.
SEE ALSO
dtrace(1M)
Indexes created Fri Apr 24 00:22:58 UTC 2026