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[heap] Factor out NumberOfAvailableCores

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Bug: chromium:651354
Change-Id: Ie940c8715a33e5fc8e8859c4660ab14ecc6f9233
Reviewed-on: https://chromium-review.googlesource.com/505488
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45302}
This commit is contained in:
Michael Lippautz 2017-05-15 14:43:00 +02:00 committed by Commit Bot
parent cea359906a
commit 6546bfe316
1 changed files with 8 additions and 9 deletions
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17
src/heap/mark-compact.cc
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@ -335,20 +335,19 @@ class YoungGenerationEvacuationVerifier : public EvacuationVerifier {
// MarkCompactCollectorBase, MinorMarkCompactCollector, MarkCompactCollector
// =============================================================================
int MarkCompactCollectorBase::NumberOfParallelCompactionTasks(int pages) {
if (!FLAG_parallel_compaction) return 1;
const int available_cores = Max(
static int NumberOfAvailableCores() {
return Max(
1, static_cast<int>(
V8::GetCurrentPlatform()->NumberOfAvailableBackgroundThreads()));
return Min(available_cores, pages);
}
int MarkCompactCollectorBase::NumberOfParallelCompactionTasks(int pages) {
return FLAG_parallel_compaction ? Min(NumberOfAvailableCores(), pages) : 1;
}
int MarkCompactCollectorBase::NumberOfPointerUpdateTasks(int pages) {
if (!FLAG_parallel_pointer_update) return 1;
const int available_cores = Max(
1, static_cast<int>(
V8::GetCurrentPlatform()->NumberOfAvailableBackgroundThreads()));
return Min(available_cores, pages);
return FLAG_parallel_pointer_update ? Min(NumberOfAvailableCores(), pages)
: 1;
}
MarkCompactCollector::MarkCompactCollector(Heap* heap)