It takes 20 minutes for the ibmq_qasm_simulator to execute 1 shot of my circuit. Successful always.
It always times out for 2 shots of the same circuit on the same simulator.
One may assume the performance would be roughly linear, say, 40 minutes for 2 shots. No, that has never happened to me. For those who don't know the simulator, its default timeout is supposed to be 166 minutes (10,000 seconds).
Is there a bug somewhere in the simulator?