On Mon, 18 Apr 2022 16:22:27 GMT, Ioi Lam <ik...@openjdk.org> wrote: >> set memory.swappiness to 0,swap space will not be used >> determine the value of memory.swappiness >> https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt >> >> >> Memory Limit: 50.00M >> Memory Soft Limit: Unlimited >> Memory & Swap Limit: 100.00M >> Maximum Processes Limit: 4194305 >> >> => >> >> Memory Limit: 50.00M >> Memory Soft Limit: Unlimited >> Memory & Swap Limit: 50.00M >> Maximum Processes Limit: 4194305 > > src/java.base/linux/classes/jdk/internal/platform/cgroupv1/CgroupV1Subsystem.java > line 155: > >> 153: long memswBytes = getLongValue(controller, >> "memory.memsw.limit_in_bytes"); >> 154: long swappiness = getLongValue(controller, "memory.swappiness"); >> 155: return (memswBytes > 0 && swappiness > 0); > > Does this also need to be changed in the test? > > https://github.com/openjdk/jdk/blob/c63fabe3d582ce0828b04b0224cea49aab5fedf3/test/lib/jdk/test/lib/containers/cgroup/MetricsTesterCgroupV1.java#L291-L296
There's also corresponding code in HotSpot: https://github.com/openjdk/jdk/blob/c63fabe3d582ce0828b04b0224cea49aab5fedf3/src/hotspot/os/linux/cgroupV1Subsystem_linux.cpp#L129-L150 ------------- PR: https://git.openjdk.java.net/jdk/pull/8285
