IBM WebSphere XS40, Command Reference Manual, Page: 148 / 1066

Parameters
throttle-threshold
Specifies the free memory threshold (expressed as a percentage of total
memory) at which the appliance starts to implement a memory
conservation algorithm. Use an integer in the range of 1 through 100. The
default is 20.
kill-threshold
Specifies the free memory threshold (expressed as a percentage of total
memory) at which the appliance restarts itself. This value must be less than
the throttle threshold. Use an integer in the range of 0 through 100. The
default is 5.
timeout
Specifies the duration of the memory conservation algorithm. Use a
positive integer. The default is 30.
Guidelines
By default, the appliance monitors its memory usage and reacts to low memory
conditions by first refusing to accept new connections. If the refusal to accept new
connections does not free sufficient memory, the appliance then responds by
restarting itself.
When free memory falls below the throttle threshold (a measure of free memory
expressed as a percentage of total memory), the appliance refuses to accept new
connections. If the amount of free memory does not rise above the throttle
threshold in the specified timeout (expressed in seconds), the appliance restarts. If
free memory falls below the kill threshold (also a measure of free memory
expressed as a percentage of total memory), the appliance restarts immediately.
Use the no throttle command to turn off throttling.
Related Commands
show throttle
Examples
v
Customizes appliance behavior when faced with a low memory condition.
– The appliance stops accepting new connections when the amount of free
memory falls below 15% of total memory.
– The appliance restarts if the amount of free memory does not rise above 15%
of total memory within 40 seconds of its refusal to accept new connections.
– The appliance restarts immediately if the amount of free memory falls below
10% of total memory.
# throttle 15 10 40
#
v Restores the default throttle settings.
– The appliance stops accepting new connections when the amount of free
memory falls below 20% of total memory.
– The appliance restarts if the amount of free memory does not rise above 20%
of total memory within 30 seconds of its refusal to accept new connections.
– The appliance restarts immediately if the amount of free memory falls below
5% of total memory.
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Command Reference