bin/start-slave.sh

@@ -17,7 +17,7 @@ if [ -f "$f" ]; then
 fi
 
 echo "This jenkins slave.jar will run as PID $$."
-export JAVA_ARGS="-Xmn128M -Xms1G -Xmx1G -client"
-export MALLOC_ARENA_MAX=1
-sleep 120m
+#export JAVA_ARGS="-Xmn128M -Xms1G -Xmx1G -client"
+export JAVA_ARGS="-Xmx2G"
+#export MALLOC_ARENA_MAX=1
 exec java $JAVA_ARGS -jar /var/lib/jenkins/slave.jar

hosts/jenkins/etc/default/jenkins

@@ -16,9 +16,10 @@ JAVA_ARGS="-Djava.awt.headless=true"
 
 #JAVA_ARGS="-Djava.net.preferIPv4Stack=true" # make jenkins listen on IPv4 address
 # See some recommendation from https://jenkins.io/blog/2016/11/21/gc-tuning/
-JAVA_ARGS="$JAVA_ARGS -Xmn1G -Xms24G -Xmx24G"  # heap settings
-JAVA_ARGS="$JAVA_ARGS -server "
-JAVA_ARGS="$JAVA_ARGS -XX:+AlwaysPreTouch"
+JAVA_ARGS="$JAVA_ARGS -Xmx16G"  # heap settings
+#JAVA_ARGS="$JAVA_ARGS -Xmn1G -Xms24G -Xmx24G"  # heap settings
+#JAVA_ARGS="$JAVA_ARGS -server "
+#JAVA_ARGS="$JAVA_ARGS -XX:+AlwaysPreTouch"
 # store heap dumps in case of OOM, to investigate it later
 #JAVA_ARGS="$JAVA_ARGS -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=$JENKINS_HOME/heapDumps/"
 # GC logging, in case somebody ever wants to actually finely tune the GC for us...
@@ -27,11 +28,11 @@ JAVA_ARGS="$JAVA_ARGS -XX:+AlwaysPreTouch"
 #JAVA_ARGS="$JAVA_ARGS -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintHeapAtGC"
 #JAVA_ARGS="$JAVA_ARGS -XX:+PrintGCCause -XX:+PrintTenuringDistribution -XX:+PrintReferenceGC -XX:+PrintAdaptiveSizePolicy"
 # G1 GC settings
-JAVA_ARGS="$JAVA_ARGS -XX:+UseG1GC "
+#JAVA_ARGS="$JAVA_ARGS -XX:+UseG1GC "
 #JAVA_ARGS="$JAVA_ARGS -XX:+ExplicitGCInvokesConcurrent -XX:+ParallelRefProcEnabled -XX:+UseStringDeduplication"
 #JAVA_ARGS="$JAVA_ARGS -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=10 -XX:+UnlockDiagnosticVMOptions -XX:G1SummarizeRSetStatsPeriod=1"
 # h01ger trying stuff
-export MALLOC_ARENA_MAX=1
+#export MALLOC_ARENA_MAX=1
 
 # make jenkins listen on IPv4 address
 #JAVA_ARGS="-Djava.net.preferIPv4Stack=true"

jenkins-home/offline_nodes

@@ -3,5 +3,7 @@
 # as offline in the jenkins UI.
 
 jtk1b-armhf-rb.debian.net
+jtk1b-armhf-rb
 ff64a-armhf-rb.debian.net
+ff64a-armhf-rb