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8246477: add whitebox support for deflating idle monitors

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Reviewed-by: dholmes, eosterlund
This commit is contained in:
Daniel D. Daugherty 2020-06-24 17:48:53 -04:00
parent 362f168d23
commit 3e4ad5d8d1
10 changed files with 158 additions and 79 deletions
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5
src/hotspot/share/runtime/synchronizer.hpp
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@ -161,9 +161,9 @@ class ObjectSynchronizer : AllStatic {
static bool is_async_deflation_needed();
static bool is_safepoint_deflation_needed();
static bool is_async_deflation_requested() { return _is_async_deflation_requested; }
static bool is_special_deflation_requested() { return _is_special_deflation_requested; }
static jlong last_async_deflation_time_ns() { return _last_async_deflation_time_ns; }
static bool request_deflate_idle_monitors(); // for whitebox test support and VM exit logging
static void set_is_async_deflation_requested(bool new_value) { _is_async_deflation_requested = new_value; }
static void set_is_special_deflation_requested(bool new_value) { _is_special_deflation_requested = new_value; }
static jlong time_since_last_async_deflation_ms();
static void oops_do(OopClosure* f);
// Process oops in thread local used monitors
@ -200,7 +200,6 @@ class ObjectSynchronizer : AllStatic {
// global list of blocks of monitors
static PaddedObjectMonitor* g_block_list;
static volatile bool _is_async_deflation_requested;
static volatile bool _is_special_deflation_requested;
static jlong _last_async_deflation_time_ns;
// Function to prepend new blocks to the appropriate lists: