Optimize EDEngineer

[Mc-Pain]

ED Engineer operates very slow, especially on large shopping lists.

There are some bottlenecks and excessive operations when updating UI or importing/clearing shopping lists.

For example:
Multiple calling this.ToList(), which calculates a new object while we can store it somewhere if it's unchanged.
Updating UI or saving settings when importing or clearing shopping list (both are time expensive)

[source branch was renamed]

[Mc-Pain]

@msarilar There are some benchmarks:

Tried to apply a shopping list with every blueprint included 10 times with commit f1ec43c -- after 30 minutes application freezes (no GC happens, I heavily suspect OutOfMemoryException)

Given my optimizations, import took ~20 seconds if you had almost empty shopping list before and choose to clean it.

[msarilar]

Nice thank you will try and review soonOn 12 Dec 2022, at 11:56, Mc-Pain ***@***.***> wrote: @msarilar There are some benchmarks: Tried to apply a shopping list with every blueprint included 10 times with commit f1ec43c -- after 30 minutes application freezes (no GC happens, I heavily suspect OutOfMemoryException) Given my optimizations, import took ~20 seconds if you had almost empty shopping list before and choose to clean it. —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>

[Mc-Pain]

This should be resolved ASAP - that's why I took the attempt to optimize.

#646

[Mc-Pain]

ping?

[Mc-Pain]

@msarilar maybe your help is needed to optimize increment/decrement shopping list.

What happens exactly when user/EDEvent changes shopping list?
Profiler data led me that hottest path contains system code. I suspect heavily messing with events subsystem or unoptimal XAML handling