A limit on overcommit?
Posted Oct 1, 2004 0:44 UTC (Fri) by ilmari
In reply to: A limit on overcommit?
Parent article: Respite from the OOM killer
It is tunable, almost exactly as you suggest. Quoting Documentation/vm/overcommit-accounting:
[S]trict overcommit. The total address space commit
for the system is not permitted to exceed swap + a
configurable percentage (default is 50) of physical RAM.
Depending on the percentage you use, in most situations
this means a process will not be killed while accessing
pages but will receive errors on memory allocation as
The overcommit policy is set via the sysctl `vm.overcommit_memory'.
The overcommit percentage is set via `vm.overcommit_ratio'.
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