serkan-ozal's 7th submission: (#679)

- use smaller regions (increased region count) so there will be less idle time for the workers who completed their tasks
- get rid of some configuration related stuff during initialization which might save a few tens of milliseconds hopefully
- update temperature value parsing instruction order to get benefit of ILP better (hopefully)

calculate_average_serkan-ozal.sh

@@ -18,7 +18,7 @@
 JAVA_OPTS="--enable-preview --enable-native-access=ALL-UNNAMED --add-modules=jdk.incubator.vector "
 JAVA_OPTS="$JAVA_OPTS -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions"
 JAVA_OPTS="$JAVA_OPTS -XX:-TieredCompilation -XX:MaxInlineSize=10000 -XX:InlineSmallCode=10000 -XX:FreqInlineSize=10000"
-JAVA_OPTS="$JAVA_OPTS -XX:-UseCountedLoopSafepoints -XX:GuaranteedSafepointInterval=0"
+JAVA_OPTS="$JAVA_OPTS -XX:-UseCountedLoopSafepoints -XX:LoopStripMiningIter=0 -XX:GuaranteedSafepointInterval=0"
 JAVA_OPTS="$JAVA_OPTS -XX:+TrustFinalNonStaticFields -da -dsa -XX:+UseNUMA -XX:-EnableJVMCI"
 JAVA_OPTS="$JAVA_OPTS -XX:SharedArchiveFile=target/CalculateAverage_serkan_ozal_cds.jsa"
 JAVA_OPTS="$JAVA_OPTS -Djdk.incubator.vector.VECTOR_ACCESS_OOB_CHECK=0"
@@ -26,10 +26,8 @@ if [[ ! "$(uname -s)" = "Darwin" ]]; then
   JAVA_OPTS="$JAVA_OPTS -XX:+UseTransparentHugePages"
 fi
 
-CONFIGS="USE_SHARED_ARENA=true USE_SHARED_REGION=true CLOSE_STDOUT_ON_RESULT=true REGION_COUNT=128"
-
 #echo "Process started at $(date +%s%N | cut -b1-13)"
-eval "exec 3< <({ $CONFIGS java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_serkan_ozal; })"
+eval "exec 3< <({ java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_serkan_ozal; })"
 read <&3 result
 echo -e "$result"
 #echo "Process finished at $(date +%s%N | cut -b1-13)"