pmtime - time control server for Performance Co-Pilot
pmtime [
-V?] [
-p port]
pmtime is a graphical user interface for performance monitoring
applications using the PCP infrastructure and requiring interactive time
control.
pmtime is not normally invoked directly by users. Rather, it is more
typical for it to be started by client applications (e.g.
pmchart(1),
pmstat(1) or
pmval(1)).
There are two modes of interacting with a
pmtime process - live host
mode, and historical archive mode. In archive mode the window presents time
controls suitable for manipulating the archive position, allowing full VCR
control to move forwards and backwards in time at configurable rates and
intervals. In live mode the
pmtime window contains the simpler time
controls suitable for live monitoring.
Note that the
pmtime window is only made visible when explicitly
requested. Multiple client applications can be connected to a single
pmtime server - when the final client application exits,
pmtime
will also exit.
The available command line options are:
-
-p port, --guiport=port
-
port is the port number which pmtime will use
for communication with its clients (monitoring applications).
-
-V, --version
- Display version number and exit.
-
-?, --help
- Display usage message and exit.
When a port number is not explicitly requested on the command line via the
-p option, the environment variable
PMTIME_PORT can be set to
specify the port number from which available-port probing will commence when
pmtime is searching for a port number to use.
The default starting port number is
43334.
PCPIntro(1),
pmchart(1),
pmstat(1) and
pmval(1).