[Investigation] DI performance

[muratg]

We should look at the performance of DI and see if we need to improve.

[pranavkm]

Is there anything in specific we know is problematic? Or is this simply doing some perf work here?

[davidfowl]

Related #124

We also have another bug that I cannot find that shows GetService adding things to a ConcurrentBag have a significant performance impact. There were also memory concerns about using expression tree compilation (@rynowak has some profiles for that).

/cc @DamianEdwards @lodejard @rynowak

[benaadams]

Related: #288

[danroth27]

Let's just use the specific issues to track the current perf investigations.

[muratg]

@danroth27 sounds good. You should file @davidfowl's concern mentioned above in that case.