Playground/1brc
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

second try: just testing with the chunk size and gc tunning

Browse Source
This commit is contained in:
Rafael Merino García 2024-01-12 19:02:31 +01:00 committed by Gunnar Morling
parent 9e5ec51315
commit ab9d64b3e3
2 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
calculate_average_imrafaelmerino.sh
View File

@ -15,7 +15,7 @@
# limitations under the License. # limitations under the License.
# #
JAVA_OPTS="" JAVA_OPTS="-Xms1024m -Xms1024m -XX:+UseParallelGC -XX:MaxHeapFreeRatio=10 -XX:ParallelGCThreads=2"
CHUNK_SIZE=$((8 * 1024 * 1024)) CHUNK_SIZE=$((50 * 1024 * 1024))
java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar \ java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar \
dev.morling.onebrc.CalculateAverage_imrafaelmerino $CHUNK_SIZE dev.morling.onebrc.CalculateAverage_imrafaelmerino $CHUNK_SIZE

1
src/main/java/dev/morling/onebrc/CalculateAverage_imrafaelmerino.java
View File

@ -144,6 +144,7 @@ public class CalculateAverage_imrafaelmerino {
var field = new byte[FIELD_SIZE]; var field = new byte[FIELD_SIZE];
while (bb.position() < limit) { while (bb.position() < limit) {
var fieldCurrentIndex = 0; var fieldCurrentIndex = 0;
field[fieldCurrentIndex++] = bb.get();
while (bb.position() < limit) { while (bb.position() < limit) {
var fieldByte = bb.get(); var fieldByte = bb.get();
if (fieldByte == ';') if (fieldByte == ';')