diff --git a/test/hotspot/jtreg/compiler/startup/StartupOutput.java b/test/hotspot/jtreg/compiler/startup/StartupOutput.java
index d02daedf69e..efccb8ed3ee 100644
--- a/test/hotspot/jtreg/compiler/startup/StartupOutput.java
+++ b/test/hotspot/jtreg/compiler/startup/StartupOutput.java
@@ -63,7 +63,7 @@ public static void main(String[] args) throws Exception {
 
         // On s390x, generated code is ~6x larger in fastdebug and ~1.4x in release builds vs. other archs,
         // hence we require slightly more minimum space.
-        int minInitialSize = 2000 + (Platform.isS390x() ? 800 : 0);
+        int minInitialSize = 1300 + (Platform.isS390x() ? 800 : 0);
         for (int i = 0; i < 50; i++) {
             int initialCodeCacheSizeInKb = minInitialSize + rand.nextInt(400);
             int reservedCodeCacheSizeInKb = initialCodeCacheSizeInKb + rand.nextInt(200);