Change feature flag to control both core and max pool size

Change default multiplier from 1 to 4.
Hardcode core pool size to be half of max size.

1 files changed, 2 insertions, 2 deletions

diff --git a/flags/src/main/java/com/yahoo/vespa/flags/Flags.java b/flags/src/main/java/com/yahoo/vespa/flags/Flags.java
index f33ca549cf7..b7c7fc5ff15 100644
--- a/flags/src/main/java/com/yahoo/vespa/flags/Flags.java
+++ b/flags/src/main/java/com/yahoo/vespa/flags/Flags.java
@@ -346,8 +346,8 @@ public class Flags {
     );
 
     public static final UnboundDoubleFlag FEED_CORE_THREAD_POOL_SIZE_FACTOR = defineDoubleFlag(
-            "feed-core-thread-pool-size-factor", 1.0,
-            "Number of core threads in threadpool for feeding APIs as factor of max pool size",
+            "feed-core-thread-pool-size-factor", 4.0,
+            "Max threads in threadpool for feeding APIs as a factor of vcpu",
             "Takes effect on next internal redeployment",
             APPLICATION_ID);