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8061308: Remove iCMS

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Reviewed-by: mgerdin, jmasa
This commit is contained in:
Bengt Rutisson 2014-10-31 09:10:51 +01:00
parent 5fd7516136
commit 4601eb634a
35 changed files with 57 additions and 999 deletions
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43
hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
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@ -356,7 +356,6 @@ class CMSStats VALUE_OBJ_CLASS_SPEC {
size_t _gc0_promoted; // bytes promoted per gc0
double _cms_duration;
double _cms_duration_pre_sweep; // time from initiation to start of sweep
double _cms_duration_per_mb;
double _cms_period;
size_t _cms_allocated; // bytes of direct allocation per gc0 period
@ -383,17 +382,7 @@ class CMSStats VALUE_OBJ_CLASS_SPEC {
unsigned int _valid_bits;
unsigned int _icms_duty_cycle; // icms duty cycle (0-100).
protected:
// Return a duty cycle that avoids wild oscillations, by limiting the amount
// of change between old_duty_cycle and new_duty_cycle (the latter is treated
// as a recommended value).
static unsigned int icms_damped_duty_cycle(unsigned int old_duty_cycle,
unsigned int new_duty_cycle);
unsigned int icms_update_duty_cycle_impl();
// In support of adjusting of cms trigger ratios based on history
// of concurrent mode failure.
double cms_free_adjustment_factor(size_t free) const;
@ -426,7 +415,6 @@ class CMSStats VALUE_OBJ_CLASS_SPEC {
size_t gc0_promoted() const { return _gc0_promoted; }
double cms_period() const { return _cms_period; }
double cms_duration() const { return _cms_duration; }
double cms_duration_per_mb() const { return _cms_duration_per_mb; }
size_t cms_allocated() const { return _cms_allocated; }
size_t cms_used_at_gc0_end() const { return _cms_used_at_gc0_end;}
@ -458,12 +446,6 @@ class CMSStats VALUE_OBJ_CLASS_SPEC {
// End of higher level statistics.
// Returns the cms incremental mode duty cycle, as a percentage (0-100).
unsigned int icms_duty_cycle() const { return _icms_duty_cycle; }
// Update the duty cycle and return the new value.
unsigned int icms_update_duty_cycle();
// Debugging.
void print_on(outputStream* st) const PRODUCT_RETURN;
void print() const { print_on(gclog_or_tty); }
@ -725,13 +707,6 @@ class CMSCollector: public CHeapObj<mtGC> {
// Timing, allocation and promotion statistics, used for scheduling.
CMSStats _stats;
// Allocation limits installed in the young gen, used only in
// CMSIncrementalMode. When an allocation in the young gen would cross one of
// these limits, the cms generation is notified and the cms thread is started
// or stopped, respectively.
HeapWord* _icms_start_limit;
HeapWord* _icms_stop_limit;
enum CMS_op_type {
CMS_op_checkpointRootsInitial,
CMS_op_checkpointRootsFinal
@ -867,10 +842,6 @@ class CMSCollector: public CHeapObj<mtGC> {
// collector.
bool waitForForegroundGC();
// Incremental mode triggering: recompute the icms duty cycle and set the
// allocation limits in the young gen.
void icms_update_allocation_limits();
size_t block_size_using_printezis_bits(HeapWord* addr) const;
size_t block_size_if_printezis_bits(HeapWord* addr) const;
HeapWord* next_card_start_after_block(HeapWord* addr) const;
@ -928,9 +899,6 @@ class CMSCollector: public CHeapObj<mtGC> {
void promoted(bool par, HeapWord* start,
bool is_obj_array, size_t obj_size);
HeapWord* allocation_limit_reached(Space* space, HeapWord* top,
size_t word_size);
void getFreelistLocks() const;
void releaseFreelistLocks() const;
bool haveFreelistLocks() const;
@ -1001,14 +969,6 @@ class CMSCollector: public CHeapObj<mtGC> {
// Timers/stats for gc scheduling and incremental mode pacing.
CMSStats& stats() { return _stats; }
// Convenience methods that check whether CMSIncrementalMode is enabled and
// forward to the corresponding methods in ConcurrentMarkSweepThread.
static void start_icms();
static void stop_icms(); // Called at the end of the cms cycle.
static void disable_icms(); // Called before a foreground collection.
static void enable_icms(); // Called after a foreground collection.
void icms_wait(); // Called at yield points.
// Adaptive size policy
AdaptiveSizePolicy* size_policy();
@ -1211,9 +1171,6 @@ class ConcurrentMarkSweepGeneration: public CardGeneration {
return allocate(size, tlab);
}
// Incremental mode triggering.
HeapWord* allocation_limit_reached(Space* space, HeapWord* top,
size_t word_size);
// Used by CMSStats to track direct allocation. The value is sampled and
// reset after each young gen collection.