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8027593: performance drop with constrained codecache starting with hs25 b111

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Fixed proper sweeping of small code cache sizes

Reviewed-by: kvn, iveresov
This commit is contained in:
Albert Noll 2013-11-12 09:32:50 +01:00
parent c632cad9d5
commit 18ca4cc301
7 changed files with 184 additions and 121 deletions
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30
hotspot/src/share/vm/compiler/compileBroker.cpp
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@ -126,6 +126,7 @@ HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end,
bool CompileBroker::_initialized = false;
volatile bool CompileBroker::_should_block = false;
volatile jint CompileBroker::_print_compilation_warning = 0;
volatile jint CompileBroker::_should_compile_new_jobs = run_compilation;
// The installed compiler(s)
@ -2027,11 +2028,10 @@ void CompileBroker::invoke_compiler_on_method(CompileTask* task) {
#endif
}
// ------------------------------------------------------------------
// CompileBroker::handle_full_code_cache
//
// The CodeCache is full. Print out warning and disable compilation or
// try code cache cleaning so compilation can continue later.
/**
* The CodeCache is full. Print out warning and disable compilation
* or try code cache cleaning so compilation can continue later.
*/
void CompileBroker::handle_full_code_cache() {
UseInterpreter = true;
if (UseCompiler || AlwaysCompileLoopMethods ) {
@ -2048,12 +2048,9 @@ void CompileBroker::handle_full_code_cache() {
xtty->stamp();
xtty->end_elem();
}
warning("CodeCache is full. Compiler has been disabled.");
warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize=");
CodeCache::report_codemem_full();
#ifndef PRODUCT
if (CompileTheWorld || ExitOnFullCodeCache) {
codecache_print(/* detailed= */ true);
@ -2066,17 +2063,22 @@ void CompileBroker::handle_full_code_cache() {
// Since code cache is full, immediately stop new compiles
if (CompileBroker::set_should_compile_new_jobs(CompileBroker::stop_compilation)) {
NMethodSweeper::log_sweep("disable_compiler");
// Switch to 'vm_state'. This ensures that possibly_sweep() can be called
// without having to consider the state in which the current thread is.
ThreadInVMfromUnknown in_vm;
NMethodSweeper::possibly_sweep();
}
// Switch to 'vm_state'. This ensures that possibly_sweep() can be called
// without having to consider the state in which the current thread is.
ThreadInVMfromUnknown in_vm;
NMethodSweeper::possibly_sweep();
} else {
disable_compilation_forever();
}
// Print warning only once
if (should_print_compiler_warning()) {
warning("CodeCache is full. Compiler has been disabled.");
warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize=");
codecache_print(/* detailed= */ true);
}
}
codecache_print(/* detailed= */ true);
}
// ------------------------------------------------------------------