From baf940b9105b04bc6d14144d3689614223dff3f3 Mon Sep 17 00:00:00 2001
From: felmer <felmer>
Date: Wed, 11 Nov 2015 09:41:43 +0000
Subject: [PATCH] SSDM-2600: log MaxPermSize setting in JMXMemoryMonitor
SVN: 35034
---
.../common/monitoring/JMXMemoryMonitor.java | 20 ++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/common/source/java/ch/systemsx/cisd/common/monitoring/JMXMemoryMonitor.java b/common/source/java/ch/systemsx/cisd/common/monitoring/JMXMemoryMonitor.java
index 0a5e6ce0f2a..93eb8a06792 100644
--- a/common/source/java/ch/systemsx/cisd/common/monitoring/JMXMemoryMonitor.java
+++ b/common/source/java/ch/systemsx/cisd/common/monitoring/JMXMemoryMonitor.java
@@ -19,11 +19,14 @@ package ch.systemsx.cisd.common.monitoring;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.lang.management.MemoryUsage;
+import java.lang.management.RuntimeMXBean;
+import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import org.apache.log4j.Logger;
+import ch.systemsx.cisd.common.filesystem.FileUtilities;
import ch.systemsx.cisd.common.logging.LogCategory;
import ch.systemsx.cisd.common.logging.LogFactory;
@@ -76,7 +79,22 @@ public class JMXMemoryMonitor
{
this.logIntervalMillis = logIntervallMillis;
this.memoryHighwaterMarkPercent = memoryHighWatermarkPercent;
- machineLog.info("Maximum heap size: " + Runtime.getRuntime().maxMemory());
+ machineLog.info("Maximum heap size: " + FileUtilities.byteCountToDisplaySize(Runtime.getRuntime().maxMemory()));
+ logMaxPermSize();
+ }
+
+ private void logMaxPermSize()
+ {
+ RuntimeMXBean memMXBean = ManagementFactory.getRuntimeMXBean();
+ String prefix = "-XX:MaxPermSize=";
+ List<String> jvmArgs = memMXBean.getInputArguments();
+ for (final String jvmArg : jvmArgs)
+ {
+ if (jvmArg.startsWith(prefix))
+ {
+ machineLog.info("MaxPermSize: " + jvmArg.substring(prefix.length()));
+ }
+ }
}
private int percentageUsed(MemoryUsage usage)
--
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