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diff src/share/vm/classfile/classLoader.cpp @ 1188:99af867dfa05

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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld Summary: Add safepoint after CompileTheWorldSafepointInterval (100) compilations and do full sweep of CodeCache each time. Reviewed-by: never Contributed-by: eric.caspole@amd.com
author kvn
date Tue, 26 Jan 2010 08:53:24 -0800
parents 4ce7240d622c
children 1b41af477605 c18cbe5936b8
line wrap: on
line diff
--- a/src/share/vm/classfile/classLoader.cpp	Wed Jan 20 22:10:33 2010 -0800
+++ b/src/share/vm/classfile/classLoader.cpp	Tue Jan 26 08:53:24 2010 -0800
@@ -1249,6 +1249,7 @@
 }
 
 int ClassLoader::_compile_the_world_counter = 0;
+static int _codecache_sweep_counter = 0;
 
 void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) {
   int len = (int)strlen(name);
@@ -1293,6 +1294,13 @@
           for (int n = 0; n < k->methods()->length(); n++) {
             methodHandle m (THREAD, methodOop(k->methods()->obj_at(n)));
             if (CompilationPolicy::canBeCompiled(m)) {
+
+              if (++_codecache_sweep_counter == CompileTheWorldSafepointInterval) {
+                // Give sweeper a chance to keep up with CTW
+                VM_ForceSafepoint op;
+                VMThread::execute(&op);
+                _codecache_sweep_counter = 0;
+              }
               // Force compilation
               CompileBroker::compile_method(m, InvocationEntryBci,
                                             methodHandle(), 0, "CTW", THREAD);