memory limit in containers on linux by rahku · Pull Request #10064 · dotnet/coreclr (original) (raw)

This adds implementation in pal to get memory limit from cgroups. Memory limit values are written in file <path_to_memory_cgroup>/memory.limit_in_bytes and <path_to_memory_cgroup>/memory.memsw.limit_int_bytes. path_to_memory_cgroup is <path_to_memory_hierarchy>/<cgroup_name>. cgroup_name can be found in file /proc/self/cgroup. <path_to_memory_hierarchy>is normally set to /sys/fs/cgroup/memory. However this is not the standard. It can be changed to any mount point. Standard way of getting that value is from /proc/self/mountinfo.

Note: CGroup implementation is not available on OSX. Docker does not run natively on OSX. It runs under a light-weigth hypervisor which runs a linux distro and you add container on top of it. So the current implementation so work just fine in this scenario.