gunnarmorling
commented
8 months ago Nice!
Benchmark 1: timeout -v 300 ./calculate_average_thomaswue.sh 2>&1
Time (mean ± σ): 1.830 s ± 0.011 s [User: 0.002 s, System: 0.004 s]
Range (min … max): 1.798 s … 1.836 s 10 runs
Warning: Statistical outliers were detected. Consider re-running this benchmark on a quiet system without any interferences from other programs. It might help to use the '--warmup' or '--prepare' options.
Summary
thomaswue: trimmed mean 1.832794623615, raw times 1.7984286922400001,1.83378488024,1.8358817772400002,1.8351058012400001,1.8321136482400002,1.83353322124,1.83313856524,1.8319531362400001,1.83227779624,1.83044994024
Leaderboard
| # | Result (m:s.ms) | Implementation | JDK | Submitter | Notes |
|---|-----------------|--------------------|-----|---------------|-----------|
| | 00:01.832 | [link](https://github.com/gunnarmorling/1brc/blob/main/src/main/java/dev/morling/onebrc/CalculateAverage_thomaswue.java)| 21.0.2-graal | [Thomas Wuerthinger](https://github.com/thomaswue) | GraalVM native binary, uses Unsafe |
Check List:
[x] You have run
./mvnw verifyand the project builds successfully[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: 0.39
Execution time of reference implementation: 120.37
Added detailed comments for the used native image flags, some code clean up for better naming, some minor tuning. This translates to around 2% faster on my machine, but let's see if this also holds up for the reference machine.