chore: flutter microbenchmarks

[vaind]

When working on replay I found myself needing to evaluate performance of possible solutions. This PR adds a scaffolding to run benchmarks as well as some benchmarks related to screenshot capture.

For reviewers: this is just flutter create microbenchmarks with updates to pubspec.yaml and lib/** + added the folder to the main package .pubignore

Current results from an old test device (Huawei Mate 20 Pro):

Images

Render object size: 800.0x600.0
Image size: 800x600

RenderRepaintBoundary.toImage()
          total runs:      2 537
          total time:     2.0006  s
         average run:        788 μs
         runs/second:    1 269.0
Image.toByteData(rawRgba)
          total runs:        463
          total time:     2.0003  s
         average run:     4.3200 ms
         runs/second:     231.48
Image.toByteData(rawStraightRgba)
          total runs:        206
          total time:     2.0002  s
         average run:      9.709 ms
         runs/second:     103.00
Image.toByteData(rawUnmodified)
          total runs:        506
          total time:     2.0004  s
         average run:     3.9530 ms
         runs/second:     252.97
Image.toByteData(rawExtendedRgba128)
          total runs:        161
          total time:     2.0031  s
         average run:     12.441 ms
         runs/second:     80.379
Image.toByteData(png)
          total runs:         54
          total time:     2.0203  s
         average run:     37.412 ms
         runs/second:     26.729
Image to Picture
          total runs:    305 508
          total time:     2.0000  s
         average run:          6 μs
         runs/second:    166 667
Picture.toImage()
          total runs:      1 865
          total time:     2.0000  s
         average run:     1.0720 ms
         runs/second:     932.84
Canvas.drawRect() x 100
          total runs:     19 291
          total time:     2.0000  s
         average run:        103 μs
         runs/second:    9 708.7

Memory

listEquals()
          total runs:      1 020
          total time:     2.0004  s
         average run:     1.9610 ms
         runs/second:     509.94
byteDataGetUint64()
          total runs:      1 111
          total time:     2.0007  s
         average run:     1.8000 ms
         runs/second:     555.56
uint64Lists()
          total runs:      8 032
          total time:     2.0000  s
         average run:        249 μs
         runs/second:    4 016.1
nativeMemcmp()
          total runs:     21 823
          total time:     2.0000  s
         average run:         91 μs
         runs/second:     10 989

#skip-changelog

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.00%. Comparing base (0c08054) to head (56c8a38).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2565      +/-   ##
==========================================
+ Coverage   87.15%   92.00%   +4.84%     
==========================================
  Files         266       89     -177     
  Lines        9447     3102    -6345     
==========================================
- Hits         8234     2854    -5380     
+ Misses       1213      248     -965     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

iOS Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1245.24 ms	1253.06 ms	7.82 ms
Size	8.42 MiB	9.88 MiB	1.46 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
c732386	1233.20 ms	1252.08 ms	18.88 ms
934f10e	1245.18 ms	1263.77 ms	18.59 ms
dd933d4	1238.73 ms	1252.43 ms	13.70 ms
e3d9076	1203.68 ms	1230.65 ms	26.97 ms
1b0c8a3	1259.30 ms	1282.78 ms	23.48 ms
02661eb	1244.45 ms	1252.37 ms	7.92 ms
1a93825	1257.25 ms	1261.55 ms	4.30 ms
00236a7	1250.06 ms	1274.00 ms	23.94 ms
8a10ab7	1226.49 ms	1250.52 ms	24.03 ms
3f23617	1261.93 ms	1286.10 ms	24.17 ms

App size

Revision	Plain	With Sentry	Diff
c732386	8.28 MiB	9.33 MiB	1.05 MiB
934f10e	8.38 MiB	9.77 MiB	1.39 MiB
dd933d4	8.33 MiB	9.64 MiB	1.31 MiB
e3d9076	8.33 MiB	9.40 MiB	1.07 MiB
1b0c8a3	8.38 MiB	9.75 MiB	1.37 MiB
02661eb	8.42 MiB	9.86 MiB	1.44 MiB
1a93825	8.28 MiB	9.34 MiB	1.05 MiB
00236a7	8.38 MiB	9.77 MiB	1.39 MiB
8a10ab7	8.28 MiB	9.34 MiB	1.06 MiB
3f23617	8.16 MiB	9.17 MiB	1.01 MiB

Previous results on branch: chore/flutter-benchmarks

Startup times

Revision	Plain	With Sentry	Diff
d3090bb	1257.50 ms	1275.60 ms	18.10 ms

App size

Revision	Plain	With Sentry	Diff
d3090bb	8.42 MiB	9.88 MiB	1.46 MiB

[github-actions]

Android Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	477.30 ms	569.16 ms	91.86 ms
Size	6.46 MiB	7.48 MiB	1.01 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
4b943a1	348.17 ms	437.15 ms	88.98 ms
1596141	300.92 ms	368.94 ms	68.02 ms
afa6e2a	349.73 ms	428.48 ms	78.75 ms
9e7630d	449.43 ms	475.82 ms	26.39 ms
ee0ca56	355.35 ms	421.13 ms	65.78 ms
07cd9e8	427.71 ms	461.23 ms	33.52 ms
2e93bab	515.33 ms	558.79 ms	43.46 ms
9a5040f	490.15 ms	563.98 ms	73.83 ms
f735167	404.38 ms	412.57 ms	8.19 ms
3adbea9	395.16 ms	447.88 ms	52.71 ms

App size

Revision	Plain	With Sentry	Diff
4b943a1	6.34 MiB	7.28 MiB	968.41 KiB
1596141	6.16 MiB	7.14 MiB	1003.98 KiB
afa6e2a	6.27 MiB	7.20 MiB	955.69 KiB
9e7630d	6.49 MiB	7.56 MiB	1.07 MiB
ee0ca56	6.33 MiB	7.30 MiB	992.52 KiB
07cd9e8	6.49 MiB	7.56 MiB	1.07 MiB
2e93bab	6.49 MiB	7.55 MiB	1.07 MiB
9a5040f	6.46 MiB	7.48 MiB	1.01 MiB
f735167	6.46 MiB	7.48 MiB	1.01 MiB
3adbea9	6.52 MiB	7.61 MiB	1.09 MiB

Previous results on branch: chore/flutter-benchmarks

Startup times

Revision	Plain	With Sentry	Diff
d3090bb	470.84 ms	534.43 ms	63.60 ms

App size

Revision	Plain	With Sentry	Diff
d3090bb	6.46 MiB	7.48 MiB	1.01 MiB