Florian Weimer wrote: > * Andrew Haley: > >> However, I think you don't want PROT_NONE whan a system has been configured >> with mode 2: in that case, a user has a reasonable expectation that >> they can use all of the memory they allocated at VM startup. It makes >> more sense to allocate all the -Xms size immediately. > > -Xms? Or -Xmx?
-Xms as a minimum: the user has a entitlement to that. It's not unreasonable that later heap expansion might fail. > The latter leads to problems if the maximum heap size is relatively large. > Currently, -Xmx is reserved, and some software fails to build on > vm.overcommit_memory systems due to this. I don't get it. Why would overcommit cause some software to fail to build? I can understand it failing if overcommit was turned off. Andrew.
