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diff --git a/man/systemd-cgtop.xml b/man/systemd-cgtop.xml
index 9322fb092..8ee552a01 100644
--- a/man/systemd-cgtop.xml
+++ b/man/systemd-cgtop.xml
@@ -21,7 +21,8 @@
along with systemd; If not, see .
-->
-
+systemd-cgtop
@@ -49,7 +50,8 @@
- systemd-cgtop OPTIONS
+ systemd-cgtop
+ OPTIONS
@@ -58,40 +60,37 @@
systemd-cgtop shows the top
control groups of the local Linux control group
- hierarchy, ordered by their CPU, memory and disk I/O load. The
+ hierarchy, ordered by their CPU, memory, or disk I/O load. The
display is refreshed in regular intervals (by default
every 1s), similar in style to
- top1.
+ top1.
+ If systemd-cgtop is not connected
+ to a tty, only one iteration is performed and no
+ columns headers are printed. This mode is suitable for
+ scripting.
Resource usage is only accounted for control
groups in the relevant hierarchy, i.e. CPU usage is
only accounted for control groups in the
cpuacct hierarchy, memory usage
only for those in memory and disk
- I/O usage for those in
- blkio. systemd1
- by default places all services in their own control
- group in the cpuacct hierarchy, but
- not in memory nor
- blkio. If resource monitoring for
- these resources is required it is recommended to add
- blkio and memory
- to the DefaultControllers= setting
- in /etc/systemd/system.conf (see
- systemd.conf5
- for details). Alternatively, it is possible to enable
- resource accounting individually for services, by
- making use of the ControlGroup=
- option in the unit files (See
- systemd.exec5
- for details).
+ I/O usage for those in blkio. If
+ resource monitoring for these resources is required,
+ it is recommended to add the
+ CPUAccounting=1,
+ MemoryAccounting=1 and
+ BlockIOAccounting=1 settings in the
+ unit files in question. See
+ systemd.resource-control5
+ for details.
To emphasize this: unless
- blkio and memory
- are enabled for the services in question with either
- of the options suggested above no resource accounting
- will be available for system services and the data shown
- by systemd-cgtop will be
+ CPUAccounting=1,
+ MemoryAccounting=1 and
+ BlockIOAccounting=1 are enabled for
+ the services in question, no resource accounting will
+ be available for system services and the data shown by
+ systemd-cgtop will be
incomplete.
@@ -101,14 +100,6 @@
The following options are understood:
-
-
-
-
- Prints a short help
- text and exits.
-
-
@@ -142,6 +133,29 @@
Order by disk I/O load.
+
+
+
+
+ Run in "batch" mode:
+ do not accept input and run until the
+ iteration limit set with
+ is
+ exhausted or until killed. This mode
+ could be useful for sending output
+ from systemd-cgtop
+ to other programs or to a
+ file.
+
+
+
+
+
+
+ Perform only this many
+ iterations.
+
+
@@ -162,13 +176,15 @@
tree traversal depth. Specifies how
deep systemd-cgtop
shall traverse the control group
- hierarchies. If 0 is specified only
- the root group is monitored, for 1
+ hierarchies. If 0 is specified, only
+ the root group is monitored. For 1,
only the first level of control groups
is monitored, and so on. Defaults to
- 2.
+ 3.
+
+
@@ -208,19 +224,26 @@
mi
- Change ordering of control groups
+ Sort the control groups
by path, number of tasks, CPU load,
- memory usage resp. IO
- load.
+ memory usage, or IO
+ load, respectively.
+
+
+
+ %
+
+ Toggle between showing CPU time as
+ time or percentage.+-
- Increase,
- resp. decrease refresh
- delay.
+ Increase
+ or decrease refresh
+ delay, respectively.
@@ -229,7 +252,7 @@
Exit status
- On success 0 is returned, a non-zero failure
+ On success, 0 is returned, a non-zero failure
code otherwise.
@@ -239,7 +262,8 @@
systemd1,
systemctl1,
systemd-cgls1,
- top1
+ systemd.resource-control5,
+ top1