SqlCommand.Cancel() causes a performance boost?

Question

I have seen this show up several places in code, never with an explanation, just a cryptic comment above it (Declaration and execution included for an idea of context. It\'s jus

Answer 1

Our Tech team at Cinchcast did some benchmarking, and we have found that adding the cmd.Cancel() actually slows it down.

We have a DALC call that gets a list of episodes for a host. We ran it 1000 times and got the average response time to return 10 episodes.

So with returning 10 shows Average With Cancel: 0.069s Average Without Cancel : 0.026s

Pretty significantly slower when running with returning 10 episode.

So, I tried again with returning 100 episodes to see if a larger result set makes a difference.

So with returning 100 shows on each call Average With Cancel: 0.132s Average Without Cancel : 0.122s

So this time the difference in time was much less. It is still faster though without using the Cancel for our usual use cases.