RFC: Avoid running out of memory by checking available memory before allocating #46831
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This improves the user experience when running with a memory constraint, e.g. in a container, where
malloc
wouldn't fail but instead the OOM killer would terminate the process (which people have been frequently complaining about). #46796 improves the situation by using appropriate GC heuristics, but this PR would make it mostly impossible to overallocate.RFC because: