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Unified Diff: src/heap/gc-idle-time-handler.cc

Issue 496303002: Re-land "Add finalize sweeping event to GCIdleTimeHandler." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: DIFF Fix compile and tests. Created 6 years, 4 months ago
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Index: src/heap/gc-idle-time-handler.cc
diff --git a/src/heap/gc-idle-time-handler.cc b/src/heap/gc-idle-time-handler.cc
index 90f916e2f45a025b056eee843de8d6de4556d7c2..094723ae0bd7159cd247741432d6a960a89c78f0 100644
--- a/src/heap/gc-idle-time-handler.cc
+++ b/src/heap/gc-idle-time-handler.cc
@@ -11,6 +11,7 @@ namespace internal {
const double GCIdleTimeHandler::kConservativeTimeRatio = 0.9;
const size_t GCIdleTimeHandler::kMaxMarkCompactTimeInMs = 1000000;
+const size_t GCIdleTimeHandler::kMinTimeForFinalizeSweeping = 100;
size_t GCIdleTimeHandler::EstimateMarkingStepSize(
@@ -30,8 +31,7 @@ size_t GCIdleTimeHandler::EstimateMarkingStepSize(
if (marking_step_size > kMaximumMarkingStepSize)
return kMaximumMarkingStepSize;
- return static_cast<size_t>(marking_step_size *
- GCIdleTimeHandler::kConservativeTimeRatio);
+ return static_cast<size_t>(marking_step_size * kConservativeTimeRatio);
}
@@ -45,7 +45,7 @@ size_t GCIdleTimeHandler::EstimateMarkCompactTime(
}
-GCIdleTimeAction GCIdleTimeHandler::Compute(int idle_time_in_ms,
+GCIdleTimeAction GCIdleTimeHandler::Compute(size_t idle_time_in_ms,
HeapState heap_state,
GCTracer* gc_tracer) {
if (IsIdleRoundFinished()) {
@@ -58,8 +58,8 @@ GCIdleTimeAction GCIdleTimeHandler::Compute(int idle_time_in_ms,
if (heap_state.incremental_marking_stopped) {
size_t speed =
static_cast<size_t>(gc_tracer->MarkCompactSpeedInBytesPerMillisecond());
- if (idle_time_in_ms >= static_cast<int>(EstimateMarkCompactTime(
- heap_state.size_of_objects, speed))) {
+ if (idle_time_in_ms >=
+ EstimateMarkCompactTime(heap_state.size_of_objects, speed)) {
// If there are no more than two GCs left in this idle round and we are
// allowed to do a full GC, then make those GCs full in order to compact
// the code space.
@@ -76,6 +76,12 @@ GCIdleTimeAction GCIdleTimeHandler::Compute(int idle_time_in_ms,
return GCIdleTimeAction::Nothing();
}
}
+ // TODO(hpayer): Estimate finalize sweeping time.
+ if (heap_state.sweeping_in_progress &&
+ idle_time_in_ms >= kMinTimeForFinalizeSweeping) {
+ return GCIdleTimeAction::FinalizeSweeping();
+ }
+
intptr_t speed = gc_tracer->IncrementalMarkingSpeedInBytesPerMillisecond();
size_t step_size =
static_cast<size_t>(EstimateMarkingStepSize(idle_time_in_ms, speed));
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