Heavy CPU utilisation causes nodes failure

One value eviction bucket with ~50m documents and 200ops. No views.
One value eviction bucket with 2m documents and 20ops. 1 view to find the oldest ttl.
One value eviction bucket with 50k documents and 20ops.
One full eviction bucket with 200 documents that are updated using the increment method with 1 view on it.

No other processes competing with Couchbase.