RSS usage by tests, sorted

ydb/tests/olap/column_family/compression sole chunk 2.75 GiB
ydb/tests/olap/ttl_tiering [data_migration_when_alter_ttl.py] chunk 3.92 GiB
ydb/tests/olap/scenario sole chunk 7.44 GiB
ydb/tests/olap/s3_import sole chunk 11.20 GiB
ydb/tests/olap/ttl_tiering [ttl_delete_s3.py] chunk 12.28 GiB