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-rwxr-xr-xcalculate_average_zerninv.sh10
1 files changed, 8 insertions, 2 deletions
diff --git a/calculate_average_zerninv.sh b/calculate_average_zerninv.sh
index 2b76c7d..6dbda30 100755
--- a/calculate_average_zerninv.sh
+++ b/calculate_average_zerninv.sh
@@ -15,5 +15,11 @@
# limitations under the License.
#
-JAVA_OPTS="--enable-preview"
-java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_zerninv \ No newline at end of file
+if [ -f target/CalculateAverage_zerninv_image ]; then
+ echo "Picking up existing native image 'target/CalculateAverage_zerninv_image', delete the file to select JVM mode." 1>&2
+ target/CalculateAverage_zerninv_image
+else
+ JAVA_OPTS="--enable-preview -Xmx512m -XX:+UseSerialGC -XX:-TieredCompilation"
+ echo "Chosing to run the app in JVM mode as no native image was found, use prepare_zerninv.sh to generate." 1>&2
+ java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_zerninv
+fi \ No newline at end of file