Single-threaded subscription evaluation

Author: joshua-spacetime

crates/core/src/subscription/module_subscription_actor.rs

@@ -685,7 +685,7 @@ impl ModuleSubscriptions {
 
         match &event.status {
             EventStatus::Committed(_) => {
-                metrics.merge(subscriptions.eval_updates(&read_tx, event.clone(), caller));
+                metrics.merge(subscriptions.eval_updates_sequential(&read_tx, event.clone(), caller));
             }
             EventStatus::Failed(_) => {
                 if let Some(client) = caller {