🔬Array creation improvements

[CalvinWilkinson]

Complete The Item Below

• I have updated the title without removing the 🔬 emoji.

What To Research

Look at the entire code base and look for areas to improve performance of array creation.

Here is an example of what we are looking for:

protected internal override float[] GenerateData()
{
    if (!IsInitialized)
    {
        throw new BufferNotInitializedException(BufferNotInitMsg);
    }

    var result = new List<TextureGpuData>();

    for (var i = 0u; i < BatchSize; i++)
    {
        result.AddRange(new TextureGpuData[] { new (default, default, default, default) });
    }

    return OpenGLExtensionMethods.ToArray(result);
}

Instead of create a List<TextureGpuData> and then using AddRange() to add the items, use a standard array with the already known size using BatchSize and then populate the data.

Some performance testing was performed using Benchmark dotnet and the improvements were huge. Find all of the areas where this type of work can be done and categorize them by the code area, such as rendering, buffering, etc. Create issues to combine all of these improvements together by category to do all of the work.

Perf Project Improvement Results

ListVsArrayPerf.zip

Method	Size	Mean	Allocated
List	10	43.358 ns	216 B
Array	10	6.410 ns	64 B
List	100	196.157 ns	1184 B
Array	100	56.787 ns	424 B
List	1000	1,092.988 ns	8424 B
Array	1000	411.261 ns	4024 B
List	10000	11,821.537 ns	131400 B
Array	10000	3,932.248 ns	40024 B
List	100000	261,708.904 ns	1049072 B
Array	100000	139,297.365 ns	400066 B
List	1000000	3,336,007.904 ns	8389700 B
Array	1000000	1,308,980.309 ns	4000359 B

This is the percentage of improvement where using the standard array outperforms using the `List.

Size	% Of Improvement
10	85.22%
100	71.05%
1000	62.37%
10000	66.74%
100000	46.77%
1000000	60.76%

Research Results

No response

Acceptance Criteria

The items to complete to satisfy the Definition of Done.

• Research complete and issues created (if needed).
• If any issues were created, they have been added to the Related Work section below.

ToDo Items

The items to complete to satisfy the Definition of Done.

• Priority label added to this issue. Refer to the Priority Type Labels section below.

Issue Dependencies

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Related Work

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Additional Information:

Priority Type Labels

Priority Type	Label
Low Priority	low-priority
Medium Priority	medium-priority
High Priority	high-priority

Code of Conduct

• I agree to follow this project's Code of Conduct.