Add flag to control number of processors a non-application jvm gets to use.

Intention is to lower this number from 2 to 1 in order to reduce memory footprint
for small containers.

1 files changed, 3 insertions, 1 deletions

diff --git a/config-model/src/main/java/com/yahoo/vespa/model/container/ContainerCluster.java b/config-model/src/main/java/com/yahoo/vespa/model/container/ContainerCluster.java
index 7010d7b3d4e..982d886cbea 100755
--- a/config-model/src/main/java/com/yahoo/vespa/model/container/ContainerCluster.java
+++ b/config-model/src/main/java/com/yahoo/vespa/model/container/ContainerCluster.java
@@ -146,6 +146,7 @@ public abstract class ContainerCluster<CONTAINER extends Container>
     private final ComponentGroup<Component<?, ?>> componentGroup;
     private final boolean isHostedVespa;
     private final boolean zooKeeperLocalhostAffinity;
+    private final int numAvailableProcessors;
 
     private final Map<String, String> concreteDocumentTypes = new LinkedHashMap<>();
 
@@ -166,6 +167,7 @@ public abstract class ContainerCluster<CONTAINER extends Container>
         this.isHostedVespa = stateIsHosted(deployState);
         this.zone = (deployState != null) ? deployState.zone() : Zone.defaultZone();
         this.zooKeeperLocalhostAffinity = zooKeeperLocalhostAffinity;
+        numAvailableProcessors = deployState.featureFlags().availableProcessors();
 
         componentGroup = new ComponentGroup<>(this, "component");
 
@@ -493,7 +495,7 @@ public abstract class ContainerCluster<CONTAINER extends Container>
     public void getConfig(QrStartConfig.Builder builder) {
         builder.jvm
                 .verbosegc(false)
-                .availableProcessors(2)
+                .availableProcessors(numAvailableProcessors)
                 .compressedClassSpaceSize(32)
                 .minHeapsize(32)
                 .heapsize(256)