From d96bda110570c17ed522a03d4635ae22db52f8ca Mon Sep 17 00:00:00 2001
From: matthew_swift <matthew_swift@localhost>
Date: Thu, 30 Apr 2009 16:07:12 +0000
Subject: [PATCH] Fix issue 3964: Improve JE backend cleaner scalability
---
opends/src/server/org/opends/server/backends/jeb/ConfigurableEnvironment.java | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/opends/src/server/org/opends/server/backends/jeb/ConfigurableEnvironment.java b/opends/src/server/org/opends/server/backends/jeb/ConfigurableEnvironment.java
index 1af255b..032b889 100644
--- a/opends/src/server/org/opends/server/backends/jeb/ConfigurableEnvironment.java
+++ b/opends/src/server/org/opends/server/backends/jeb/ConfigurableEnvironment.java
@@ -411,6 +411,21 @@
// they are instead renamed from .jdb to .del.
envConfig.setConfigParam("je.cleaner.expunge", "true");
+ // If the JVM is reasonably large then we can safely default to
+ // bigger read buffers. This will result in more scalable checkpointer
+ // and cleaner performance.
+ if (Runtime.getRuntime().maxMemory() > 256 * 1024 * 1024)
+ {
+ envConfig.setConfigParam("je.cleaner.lookAheadCacheSize", String
+ .valueOf(2 * 1024 * 1024));
+
+ envConfig.setConfigParam("je.log.iteratorReadSize", String
+ .valueOf(2 * 1024 * 1024));
+
+ envConfig.setConfigParam("je.log.faultReadSize", String
+ .valueOf(4 * 1024));
+ }
+
return envConfig;
}
--
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