Caching is important 🐌

[smitpatel]

Perf: Cache change detector in state manager CascadeDelete

Resolves #22215

[smitpatel]

Before:

Method	AutoDetectChanges	Mean	Error	StdDev	Median	Gen 0	Gen 1	Gen 2	Allocated
Remove	False	14.86 ms	0.399 ms	1.176 ms	14.25 ms	1000.0000	1000.0000	-	7.67 MB
RemoveRange	False	14.20 ms	0.460 ms	1.357 ms	13.58 ms	-	-	-	7.06 MB
Update	False	60.01 ms	1.130 ms	1.057 ms	59.47 ms	1000.0000	1000.0000	-	7.51 MB
UpdateRange	False	58.87 ms	1.173 ms	1.566 ms	58.78 ms	-	-	-	6.9 MB
Remove	True	18.16 ms	0.396 ms	1.167 ms	17.71 ms	1000.0000	1000.0000	-	7.67 MB
RemoveRange	True	16.91 ms	0.422 ms	1.245 ms	16.67 ms	-	-	-	7.06 MB
Update	True	61.55 ms	1.219 ms	1.404 ms	61.47 ms	1000.0000	-	-	7.51 MB
UpdateRange	True	59.30 ms	1.161 ms	1.192 ms	58.71 ms	-	-	-	6.9 MB

After:

Method	AutoDetectChanges	Mean	Error	StdDev	Median	Gen 0	Gen 1	Gen 2	Allocated
Remove	False	14.13 ms	0.433 ms	1.278 ms	13.65 ms	1000.0000	1000.0000	-	7.67 MB
RemoveRange	False	13.82 ms	0.470 ms	1.386 ms	13.29 ms	-	-	-	7.06 MB
Update	False	56.76 ms	1.126 ms	1.053 ms	56.20 ms	1000.0000	1000.0000	-	7.51 MB
UpdateRange	False	57.83 ms	1.152 ms	1.078 ms	57.22 ms	-	-	-	6.9 MB
Remove	True	14.76 ms	0.425 ms	1.252 ms	14.86 ms	1000.0000	-	-	7.67 MB
RemoveRange	True	13.30 ms	0.469 ms	1.383 ms	12.57 ms	-	-	-	7.06 MB
Update	True	58.67 ms	1.114 ms	1.192 ms	58.65 ms	1000.0000	-	-	7.51 MB
UpdateRange	True	57.74 ms	1.077 ms	1.007 ms	57.39 ms	-	-	-	6.9 MB

[AndriySvyryd]

Now to fix Attach perf 😉

[AndriySvyryd]

Caching Model[CoreAnnotationNames.SkipDetectChangesAnnotation] in other places should also give good results, this should probably be moved to a field on Model instead of an annotation

[smitpatel]

Filed #22262 #22263

[smitpatel]

@Pilchie for RC1 approval.

[Pilchie]

Approved for RC1