1.x: perf benchmark for the cost of subscribing #3478
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1.x: perf benchmark for the cost of subscribing
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This PR adds a perf test that measures what it takes to subscribe to a
non-backpressured and backpressured source and what is the effect of the
mini-arbitration inside Subscriber.
This should enable investigations into why generally 1.x subscriptions have more overhead than 2.x.
Benchmark (i7 4770K, Windows 7 x64, Java 8u66):
Direct overrides
setProducerand requests directly. Started requests in theonStartmethod and Usual requests in the constructor.