sidekiq-routing gives you runtime control over which Sidekiq queue a job class lands in or runs from — without a deploy. Park a misbehaving class onto a worker-less parking queue (reversible), blackhole it (drop), or let the optional auto-rerouter move noisy classes between latency tiers. Ships a read-only Sidekiq Web tab. Routing state lives in a single Redis hash read from a process-local snapshot, so the per-job hot path stays an in-memory lookup rather than a Redis round-trip.