On May 17, 2021, at 17:42, Christopher Nielsen wrote: > Also, I see two buildbot VMs with 9 GB of memory allocated: > > OS X El Capitan v10.11.6 (15G22010) > Xcode v8.2.1 (8C1002) > Apple LLVM version 8.0.0 (clang-800.0.42.1) > Architecture: x86_64 > C++ library: libc++ > CPU: 8 ⨉ 2.15 GHz > RAM: 9 GB > Boot date: 2021-05-01T21:54:00Z > > macOS Mojave v10.14.6 (18G9028) > Xcode v10.3 (10G8) > Apple LLVM version 10.0.1 (clang-1001.0.46.4) > Architecture: x86_64 > C++ library: libc++ > CPU: 8 ⨉ 2.15 GHz > RAM: 9 GB > Boot date: 2021-05-01T21:54:00Z > > This is problematic, if we’re already exceeding the physical memory available > [when also factoring in the needs of the hypervisor].
It is not problematic. Per my earlier explanation of which VM is on which host, 10.8, 10.11, and 10.14 are currently together on a host that has 32 GB RAM. If I set them all to 8 GB RAM, then 2.x GB RAM are not being used for anything. I improved the performance of the 10.11 and 10.14 VMs and made it less likely for them to swap by assigning the additional available 1 GB RAM to each.
