[geode] branch develop updated: GEODE-5765: Clean up soft references faster in dunit tests

[upthewaterspout]

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upthewaterspout pushed a commit to branch develop
in repository https://gitbox.apache.org/repos/asf/geode.git


The following commit(s) were added to refs/heads/develop by this push:
     new efb2e29  GEODE-5765: Clean up soft references faster in dunit tests
efb2e29 is described below

commit efb2e291ec1284731ea6d21fbc988d9060b7eed7
Author: Dan Smith <upthewatersp...@apache.org>
AuthorDate: Thu Sep 20 10:26:00 2018 -0700

    GEODE-5765: Clean up soft references faster in dunit tests
    
    We observed that several tests in AlterRuntimeCommandDUnitTest class
    were taking minutes when they should be taking a few seconds at most.
    After some debugging, we determined that the JVM itself is struggling to
    deal with having 100K+ classes loaded. They are loaded because the test
    is repeated starting and stopping the http service, which creates a
    classloader and causes soft references to all of the loaded classes to
    be cached.
    
    By setting this flag to clear the soft references faster, the test times
    go back to normal.
---
 .../main/java/org/apache/geode/test/dunit/standalone/ProcessManager.java | 1 +
 1 file changed, 1 insertion(+)

diff --git 
a/geode-dunit/src/main/java/org/apache/geode/test/dunit/standalone/ProcessManager.java
 
b/geode-dunit/src/main/java/org/apache/geode/test/dunit/standalone/ProcessManager.java
index fb7f2dd..a200f14 100755
--- 
a/geode-dunit/src/main/java/org/apache/geode/test/dunit/standalone/ProcessManager.java
+++ 
b/geode-dunit/src/main/java/org/apache/geode/test/dunit/standalone/ProcessManager.java
@@ -261,6 +261,7 @@ public class ProcessManager {
         + ConfigurationProperties.VALIDATE_SERIALIZABLE_OBJECTS + "=true");
     cmds.add("-ea");
     cmds.add("-XX:MetaspaceSize=512m");
+    cmds.add("-XX:SoftRefLRUPolicyMSPerMB=1");
     cmds.add(agent);
     cmds.add(ChildVM.class.getName());
     String[] rst = new String[cmds.size()];