diskhits(1m) USER COMMANDS diskhits(1m)NAMEdiskhits - disk access by file offset. Uses DTrace.
SYNOPSISdiskhits 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 users with root privileges can run this
command.
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 direc‐
tory. The DTraceToolkit docs may include full worked examples with ver‐
bose descriptions explaining the output.
EXITdiskhits will sample until Ctrl-C is hit.
SEE ALSOdtrace(1M)version 0.72 Apr 20, 2006 diskhits(1m)