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[Concurrency] limit queue width on all non apple platforms, not just linux #39764

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Oct 16, 2021
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4 changes: 2 additions & 2 deletions stdlib/public/Concurrency/GlobalExecutor.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -275,7 +275,7 @@ static constexpr size_t globalQueueCacheCount =
static_cast<size_t>(JobPriority::UserInteractive) + 1;
static std::atomic<dispatch_queue_t> globalQueueCache[globalQueueCacheCount];

#if defined(SWIFT_CONCURRENCY_BACK_DEPLOYMENT) || defined(__linux__)
#if defined(SWIFT_CONCURRENCY_BACK_DEPLOYMENT) || !defined(__apple__)
extern "C" void dispatch_queue_set_width(dispatch_queue_t dq, long width);
#endif

Expand All @@ -295,7 +295,7 @@ static dispatch_queue_t getGlobalQueue(JobPriority priority) {
if (SWIFT_LIKELY(queue))
return queue;

#if defined(SWIFT_CONCURRENCY_BACK_DEPLOYMENT) || defined(__linux__)
#if defined(SWIFT_CONCURRENCY_BACK_DEPLOYMENT) || !defined(__apple__)
const int DISPATCH_QUEUE_WIDTH_MAX_LOGICAL_CPUS = -3;

// Create a new cooperative concurrent queue and swap it in.
Expand Down