diff --git a/defaults/yacy.init b/defaults/yacy.init
index d168359f9..ac21351ca 100644
--- a/defaults/yacy.init
+++ b/defaults/yacy.init
@@ -615,7 +615,7 @@ cleanup.failedSearchURLtimeout = 86400000
 # if a high performance for large search indexes is wanted, then setting the values to equal number is recommended
 # if YaCy shall be nice in not-only-yacy environments, then the Xms value may be lower
 javastart_Xmx=Xmx600m
-javastart_Xms=Xms180m
+javastart_Xms=Xms600m
 
 # YaCy is able to use RAM copies of database tables. This needs a lot of RAM
 # To switch copying of file tables int RAM on, use this property
diff --git a/htroot/PerformanceQueues_p.java b/htroot/PerformanceQueues_p.java
index f33c37f7b..c045698f4 100644
--- a/htroot/PerformanceQueues_p.java
+++ b/htroot/PerformanceQueues_p.java
@@ -86,7 +86,7 @@ public class PerformanceQueues_p {
             if (post.containsKey("Xmx")) {
                 int xmx = post.getInt("Xmx", 500); // default maximum heap size
                 if (OS.isWin32) xmx = Math.min(2000, xmx);
-                int xms = xmx / 4;
+                int xms = xmx; // take all.. if this is not used the os will manage that. if not reserved at the beginning the OS may reject to give away more memory
 	            sb.setConfig("javastart_Xmx", "Xmx" + xmx + "m");
 	            sb.setConfig("javastart_Xms", "Xms" + xms + "m");
 	            prop.put("setStartupCommit", "1");