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4360113: Evict nmethods when code cache gets full

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Speculatively unload the oldest nmethods when code cache gets full.

Reviewed-by: never, kvn
This commit is contained in:
Eric Caspole 2010-01-29 09:27:22 -08:00 • committed by Vladimir Kozlov
parent 9aa675b7e6
commit a57d68e35b
19 changed files with 452 additions and 76 deletions
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16
hotspot/src/share/vm/ci/ciEnv.cpp
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@ -962,18 +962,10 @@ void ciEnv::register_method(ciMethod* target,
if (nm == NULL) {
// The CodeCache is full. Print out warning and disable compilation.
record_failure("code cache is full");
UseInterpreter = true;
if (UseCompiler || AlwaysCompileLoopMethods ) {
#ifndef PRODUCT
warning("CodeCache is full. Compiler has been disabled");
if (CompileTheWorld || ExitOnFullCodeCache) {
before_exit(JavaThread::current());
exit_globals(); // will delete tty
vm_direct_exit(CompileTheWorld ? 0 : 1);
}
#endif
UseCompiler = false;
AlwaysCompileLoopMethods = false;
{
MutexUnlocker ml(Compile_lock);
MutexUnlocker locker(MethodCompileQueue_lock);
CompileBroker::handle_full_code_cache();
}
} else {
NOT_PRODUCT(nm->set_has_debug_info(has_debug_info); )