tail head cat sleep
QR code linking to this page

Manual Pages  — GSTAT


gstat – print statistics about GEOM disks



gstat [-abBcdops] [-f filter] [-I interval]


The gstat utility can be used to monitor I/O transactions of geom(4) devices.

The options are as follows:
  Only display providers that are at least 0.1% busy.
  Batch mode. Collect numbers, print and exit. Default if stdout is not a tty.
  Endless batch mode. Same as batch mode, but does not exit after collecting the first set of data.
  Enable display of geom(4) consumers too. The default is to show statistics only for geom(4) producers.
  Enable display of statistics for delete ( BIO_DELETE) operations.
-f filter
  A regular expression that can be used to only show statistics for some devices. Only devices with the names matching filter will be displayed. The format of the regular expression is described in re_format(7).
  Enable display of statistics for other operations ( BIO_FLUSH).
  Enable blocks' size statistics.
-I interval
  Refresh the gstat display every interval microseconds. Adding a suffix of s, ms, or us (the default) indicates that the update interval is specified in seconds, milliseconds, or microseconds, respectively.
  Only display physical providers (those with rank of 1).


The utility exits 0 on success, and >0 if an error occurs.


systat(1), geom(4), iostat(8), vmstat(8)


A gstat utility appeared in FreeBSD 5.0 .

GSTAT (8) November 10, 2016

tail head cat sleep
QR code linking to this page

Please direct any comments about this manual page service to Ben Bullock. Privacy policy.

Like a classics radio station whose play list spans decades, Unix simultaneously exhibits its mixed and dated heritage. There's Clash-era graphics interfaces; Beatles-era two-letter command names; and systems programs (for example, ps) whose terse and obscure output was designed for slow teletypes; Bing Crosby-era command editing (# and @ are still the default line editing commands), and Scott Joplin-era core dumps.
— The Unix Haters' handbook