Commit Graph

9 Commits

Author SHA1 Message Date
Norman Feske
04cbee4c76 terminal_mux.run: Let CLI monitor preserve RAM
This change allows for the testing of cli_monitor's automatic resource
balancing by executing the following command:

  start ram_eater --ram-limit 1G --count 5

The command starts 5 instances of a RAM-eating process, which is,
however, able to yield resources when instructed. The RAM quota for the
processes gets automatically extended because of the overly large limit
of 1 GiB, which is far more than CLI monitor's RAM resources (100 MiB).
When the RAM usage hits the preservation limit, CLI monitor broadcasts
yield requests to each ram_eater instance, which allow the scenario to
remain alive.
2013-10-16 09:26:11 +02:00
Norman Feske
a903049a1a cli_monitor: Resource-balancing support
This patch introduces new commands for dynamically balancing RAM between
subsystems. The 'status' command prints a table with the RAM status of
each subsystem. The 'ram' command changes the quota or a quota limit of
a given subsystem. The quota limit can be defined to allow the on-demand
expansion of the quota. Finally, the 'yield' command can be used to
instruct a subsystem to yield a specified amount of resources.

For trying out the new commands, a so-called 'ram_eater' example has
been added to the 'terminal_mux.run' scenario. This program simulates a
subsystem with a growing demand for resources, yet with the capability
to yield resources when instructed by the parent (i.e., cli_monitor).

Besides implementing the new features, the patch splits the
implementation of 'cli_monitor' into multiple files.
2013-10-16 09:26:09 +02:00
Norman Feske
cbdad73dd7 terminal_mux.run: LOG output of terminal_log
This patch tweaks the route of 'terminal_log' such that a LOG session
request of this program is directed to the parent rather to itself.
2013-10-16 09:26:08 +02:00
Norman Feske
242d51033f terminal_mux.run: Don't use uart_drv on Fiasco.OC 2013-04-08 11:42:25 +02:00
Christian Prochaska
3f9bf7e5dd Add missing route to timer 2013-03-26 12:21:45 +01:00
Norman Feske
dfe4fd177d cli_monitor: Add foc-specific kdebug command 2013-03-21 15:50:32 +01:00
Norman Feske
d7f85ef81f Add cli_monitor to terminal_mux.run 2013-03-21 11:44:34 +01:00
Christian Prochaska
82aa092dac terminal_mux: increase RAM quota in run script
Fixes #694.
2013-03-20 14:22:43 +01:00
Norman Feske
a61bd71a4f Terminal multiplexer
The new terminal_mux server is able to provide multiple terminal
sessions over one terminal-client session. The user can switch
between the different sessions using the keyboard shortcut C-y,
which brings up an ncurses-based menu.
2013-02-25 16:45:47 +01:00