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| author | Roy van Rijn <roy.van.rijn@gmail.com> | 2024-01-03 20:44:24 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-01-03 20:44:24 +0100 |
| commit | 5570f1b60a557baf9ec6af412f8d5bd75fc44891 (patch) | |
| tree | 43f63d10299bbf2b8940864ac7f57504820e5e8e /calculate_average_royvanrijn.sh | |
| parent | 0ba5cf33d4a4ce290dbe4fa5e4e4c37b424c8675 (diff) | |
Roy van Rijn: memory mapped files, branchless parsing, bitwiddle magic
Added SWAR (SIMD Within A Register) code to increase bytebuffer processing/throughput
Delaying the creation of the String by comparing hash, segmenting like spullara, improved EOL finding
Co-authored-by: Gunnar Morling <gunnar.morling@googlemail.com>
Diffstat (limited to 'calculate_average_royvanrijn.sh')
| -rwxr-xr-x | calculate_average_royvanrijn.sh | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/calculate_average_royvanrijn.sh b/calculate_average_royvanrijn.sh index ae22a3e..ede6451 100755 --- a/calculate_average_royvanrijn.sh +++ b/calculate_average_royvanrijn.sh @@ -16,5 +16,11 @@ # -JAVA_OPTS="" +# Added for fun, doesn't seem to be making a difference... +if [ -f "target/calculate_average_royvanrijn.jsa" ]; then + JAVA_OPTS="-XX:SharedArchiveFile=target/calculate_average_royvanrijn.jsa -Xshare:on" +else + # First run, create the archive: + JAVA_OPTS="-XX:ArchiveClassesAtExit=target/calculate_average_royvanrijn.jsa" +fi time java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_royvanrijn |