diskhits(1m) USER COMMANDS diskhits(1m)

NAME
       diskhits - disk access by file offset. Uses DTrace.

SYNOPSIS
       ddiisskkhhiittss ppaatthhnnaammee

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
       dtracekernel privilege can run this command.

EEXXAAMMPPLLEESS
       Sample /var/adm/messages disk activity,
              # ddiisskkhhiittss //vvaarr//aaddmm//mmeessssaaggeess


FFIIEELLDDSS
       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


BBAASSEEDD OONN
       /usr/demo/dtrace/applicat.d


DDOOCCUUMMEENNTTAATTIIOONN
       DTrace Guide "io Provider" chapter (docs.sun.com)

       See the DTraceToolkit for further documentation under the  Docs  direc-
       tory. The DTraceToolkit docs may include full worked examples with ver-
       bose descriptions explaining the output.

EEXXIITT
       diskhits will sample until Ctrl-C is hit.

SEE ALSO
       dtrace(1M)



version 0.72                     Apr 20, 2006                     diskhits(1m)