Small improvements

[artsiomkorzun]

Check List:

• [x] Tests pass (./test.sh <username> shows no differences between expected and actual outputs)

• [x] All formatting changes by the build are committed

• [x] Your launch script is named calculate_average_<username>.sh (make sure to match casing of your GH user name) and is executable

• [x] Output matches that of calculate_average_baseline.sh

• [x] For new entries, or after substantial changes: When implementing custom hash structures, please point to where you deal with hash collisions (line number)

• Execution time: ~30 ms better

• Execution time of reference implementation: a lot

[gunnarmorling]

Comes in a bit slower actually:

Benchmark 1: timeout -v 300 ./calculate_average_artsiomkorzun.sh 2>&1
  Time (mean ± σ):      2.060 s ±  0.010 s    [User: 0.002 s, System: 0.004 s]
  Range (min … max):    2.034 s …  2.066 s    10 runs

Summary
  artsiomkorzun: trimmed mean 2.0625630242949997, raw times 2.0336724294199997,2.06647070542,2.06597330042,2.0661385814199997,2.05878286342,2.06480267942,2.0643172384199997,2.0615065864199997,2.0622090584199997,2.05677388642

Leaderboard

| # | Result (m:s.ms) | Implementation     | JDK | Submitter     | Notes     |
|---|-----------------|--------------------|-----|---------------|-----------|
|   | 00:02.062 | [link](https://github.com/gunnarmorling/1brc/blob/main/src/main/java/dev/morling/onebrc/CalculateAverage_artsiomkorzun.java)| 21.0.2-graal | [Artsiom Korzun](https://github.com/artsiomkorzun) | GraalVM native binary, uses Unsafe |

[artsiomkorzun]

@gunnarmorling reverted some changes. Please try once more.

[gunnarmorling]

Almost the same now as the current entry:

Benchmark 1: timeout -v 300 ./calculate_average_artsiomkorzun.sh 2>&1
  Time (mean ± σ):      2.022 s ±  0.015 s    [User: 0.001 s, System: 0.004 s]
  Range (min … max):    1.996 s …  2.036 s    5 runs

Summary
  artsiomkorzun: trimmed mean 2.0264423235666666, raw times 1.9956557839,2.0358313169000004,2.0279398379,2.0246280749000003,2.0267590579

Leaderboard

| # | Result (m:s.ms) | Implementation     | JDK | Submitter     | Notes     |
|---|-----------------|--------------------|-----|---------------|-----------|
|   | 00:02.026 | [link](https://github.com/gunnarmorling/1brc/blob/main/src/main/java/dev/morling/onebrc/CalculateAverage_artsiomkorzun.java)| 21.0.2-graal | [Artsiom Korzun](https://github.com/artsiomkorzun) | GraalVM native binary, uses Unsafe |