Is there an existing issue for this?

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Current Behavior

A customer alerted us to the fact that while starting a large number of workspaces the query GetWorkspaceAgentByInstanceID caused excessive load (10x the next most expensive) and averaged 100ms latency.

Relevant Log Output

Expected Behavior

GetWorkspaceAgentByInstanceID is a simple exact-match lookup, so should be very fast if properly optimized (do we have an index?).

Steps to Reproduce

Create a lot of EC2 instaces with AWS instance identity

Environment

• Host OS:
• Coder version:

Additional Context

No response