Flag for advanced configuration of Bazel's internal Skyframe engine. If Bazel detects its retained heap percentage usage exceeds the threshold set by --skyframe_high_water_mark_threshold, when a minor GC event occurs, it will drop unnecessary temporary Skyframe state, up to this many times per invocation. Defaults to Integer.MAX_VALUE; effectively unlimited. Zero means that minor GC events will never trigger drops. If the limit is reached, Skyframe state will no longer be dropped when a minor GC event occurs and that retained heap percentage threshold is exceeded.