ImHashMap<int, SampleClass> vs MemoryOwner<SampleClass> about imtools HOT 4 CLOSED

@netcorefan1 Hi, could you share the Program.cs and csproj through the gist and not through the zip archive?

Also, I am not sure what is the MemoryOwner you are talking about - is it the ArrayPool wrapper?
Then how it can be used as a map?

from imtools.

@netcorefan1 Hi, could you share the Program.cs and csproj through the gist and not through the zip archive?

Many thanks for your support. Gist link

Also, I am not sure what is the MemoryOwner you are talking about - is it the ArrayPool wrapper?

Yes, it is the ArrayPool wrapper made by the community toolkit.

Then how it can be used as a map?

This is something that I really don't have any idea (I don't have the required low level knowledge). It is very uncommon, but someone seems to have done something similar with good results.
I have excluded such possibility from the beginning and rather I focused on trying to understand what between the two options could provide faster data access with less resources. There are also other operations which will probably work better with a map, but I'm at the beginning and so I can't do any estimation. So I decided to first focus on performance and check if I have done something wrong for getting so poor performance.

from imtools.

@netcorefan1

I have added the benchmark.

You are comparing different things here:

• MemoryOwner.Span is the pre-allocated Array, ImHashMap is the Map/Dictionary
• Moreover, ImHashMap is the immutable map (e.g. targeting the thread safety scenarios, non-locking, etc.), and making them faster and less memory consuming than the Immutable collections from the BCL.

Next version of ImTools will provide non thread safe map but faster and lighter, called SmallMap which beats the BCL Dictionary (but not the arrays).

from imtools.

closing

from imtools.