TlabAllocationRatioRule currently only reports the ration between inside and outside TLAB allocation. While the inside allocations only can be inspected statistically, we get complete information about outside TLAB allocations.

• We can inspect the sizes of the outside allocations.
• We can calculate top allocated classes
• If the allocations are small (would normally fit inside a TLAB) we can say why they ended up outside.
• We can adapt recommendations by the allocation profile.

We could also add a configuration attribute to allow the user to modify the target ratio (currently fixed to give an info notice at 20% outside allocation).

Also look at JMC-3846 for more ideas.