| chasemp added a comment. |
In T162166#3158827, @hashar wrote:Oops I forgot about overcommit_memory which I mentioned on the parent task. From T125050#3153574 :
- let Linux memory management over commit memory https://www.kernel.org/doc/Documentation/vm/overcommit-accounting . If anything really needs more memory the OOM killer will strike which is usually terrible.
That is probably the easiest path for that fork issue indeed and keep the labs instance RAM at a sane level. The points above about lowering the disk size still stand though. I would give it a try and follow up on T125050
FWIW this currently defaults to 2 I believe
2 - Don't overcommit. The total address space commit for the system is not permitted to exceed swap + a configurable amount (default is 50%) of physical RAM. Depending on the amount you use, in most situations this means a process will not be killed while accessing pages but will receive errors on memory allocation as appropriate.
Useful for applications that want to guarantee their memory allocations will be available in the future without having to initialize every page.
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Cc: Platonides, Smalyshev, chasemp, StudiesWorld, JanZerebecki, Aklapper, hoo, Paladox, thcipriani, aude, Anomie, WMDE-leszek, Ladsgroup, Aleksey_WMDE, Lydia_Pintscher, Stashbot, Legoktm, greg, hashar, QZanden, Tbscho, Salgo60, D3r1ck01, Izno, Wikidata-bugs, Dinoguy1000, Gryllida, jayvdb, MrStradivarius, scfc, Jackmcbarn, Mbch331
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