default[:postgresql][:settings][:defaults][:work_mem] = "1MB"
default[:postgresql][:settings][:defaults][:maintenance_work_mem] = "16MB"
default[:postgresql][:settings][:defaults][:max_stack_depth] = "2MB"
+default[:postgresql][:settings][:defaults][:effective_io_concurrency] = "1"
default[:postgresql][:settings][:defaults][:wal_level] = "minimal"
default[:postgresql][:settings][:defaults][:fsync] = "on"
default[:postgresql][:settings][:defaults][:synchronous_commit] = "on"