diff -r f9e300086063 -r b7bcf7497f93 hotspot/src/share/vm/runtime/vmThread.cpp --- a/hotspot/src/share/vm/runtime/vmThread.cpp Fri Jun 07 09:33:01 2013 -0700 +++ b/hotspot/src/share/vm/runtime/vmThread.cpp Mon Jun 10 11:30:51 2013 +0200 @@ -35,6 +35,7 @@ #include "runtime/vmThread.hpp" #include "runtime/vm_operations.hpp" #include "services/runtimeService.hpp" +#include "trace/tracing.hpp" #include "utilities/dtrace.hpp" #include "utilities/events.hpp" #include "utilities/xmlstream.hpp" @@ -365,7 +366,23 @@ (char *) op->name(), strlen(op->name()), op->evaluation_mode()); #endif /* USDT2 */ + + EventExecuteVMOperation event; + op->evaluate(); + + if (event.should_commit()) { + bool is_concurrent = op->evaluate_concurrently(); + event.set_operation(op->type()); + event.set_safepoint(op->evaluate_at_safepoint()); + event.set_blocking(!is_concurrent); + // Only write caller thread information for non-concurrent vm operations. + // For concurrent vm operations, the thread id is set to 0 indicating thread is unknown. + // This is because the caller thread could have exited already. + event.set_caller(is_concurrent ? 0 : op->calling_thread()->osthread()->thread_id()); + event.commit(); + } + #ifndef USDT2 HS_DTRACE_PROBE3(hotspot, vmops__end, op->name(), strlen(op->name()), op->evaluation_mode()); @@ -601,7 +618,7 @@ { VMOperationQueue_lock->lock_without_safepoint_check(); bool ok = _vm_queue->add(op); - op->set_timestamp(os::javaTimeMillis()); + op->set_timestamp(os::javaTimeMillis()); VMOperationQueue_lock->notify(); VMOperationQueue_lock->unlock(); // VM_Operation got skipped