RSS usage by tests, sorted

ydb/core/tx/schemeshard/ut_background_cleaning [0/3] chunk 0.81 GiB
ydb/core/tx/schemeshard/ut_background_cleaning [2/3] chunk 0.81 GiB
ydb/core/tx/schemeshard/ut_background_cleaning [1/3] chunk 0.86 GiB