Performance regression: plaintext, proxy-yarp

[pr-benchmarks]

A build regression has been detected for the following scenarios:

Scenario	Environment	Date	Old Build (ms)	New Build (ms)	Change	Deviation	StDev
plaintext	Plaintext Linked aspnet-citrine-lin	11/24/2020 00:41:01	124,853	121,076	3 % (3,777) 👎	12.85 σ	294
proxy-yarp	Yarp Linked aspnet-citrine-lin	11/24/2020 00:50:43	59,063	56,596	4 % (2,467) 👎	9.87 σ	250

Changes:

Runtime	Previous Version	Current Version	Diff
ASP.NET	5.0.0-rtm.20512.8	5.0.0-rtm.20512.8	n/a
CLR	5.0.0-rtm.20509.6	5.0.0-rtm.20509.6	n/a
SDK	5.0.100-rtm.20509.5	6.0.100-alpha.1.20568.5	n/a

@sebastienros
@agocke

[sebastienros]

Build time went down, but the thumbs are down, need to fix this.

[sebastienros]

Note that the difference is in the sdk, 6.0 vs 5.0.