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8223658: Performance regression of XML.validation in 13-b19
authorjoehw
Fri, 24 May 2019 10:28:21 -0700
changeset 55038 4ccc8d8bc02b
parent 55037 290679ec47bb
child 55039 4947a097db60
8223658: Performance regression of XML.validation in 13-b19 Reviewed-by: lancea
src/java.xml/share/classes/com/sun/org/apache/xerces/internal/dom/DeferredDocumentImpl.java file | annotate | diff | comparison | revisions 
--- a/src/java.xml/share/classes/com/sun/org/apache/xerces/internal/dom/DeferredDocumentImpl.java	Fri May 24 09:47:41 2019 -0700
+++ b/src/java.xml/share/classes/com/sun/org/apache/xerces/internal/dom/DeferredDocumentImpl.java	Fri May 24 10:28:21 2019 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
  */
 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
@@ -42,7 +42,7 @@
  * @xerces.internal
  *
  * @since  PR-DOM-Level-1-19980818.
- * @LastModified: Oct 2017
+ * @LastModified: May 2019
  */
 public class DeferredDocumentImpl
     extends DocumentImpl
@@ -69,7 +69,7 @@
     // protected
 
     /** Chunk shift. */
-    protected static final int CHUNK_SHIFT = 11;           // 2^11 = 2k
+    protected static final int CHUNK_SHIFT = 8;           // 2^8 = 256
 
     /** Chunk size. */
     protected static final int CHUNK_SIZE = (1 << CHUNK_SHIFT);
@@ -78,7 +78,7 @@
     protected static final int CHUNK_MASK = CHUNK_SIZE - 1;
 
     /** Initial chunk size. */
-    protected static final int INITIAL_CHUNK_COUNT = (1 << (16 - CHUNK_SHIFT));   // 2^16 = 64k
+    protected static final int INITIAL_CHUNK_COUNT = (1 << (13 - CHUNK_SHIFT));   // 32
 
     //
     // Data
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