Skip to content

🍒 5.5 [Concurrency] Limit queue width with set_width SPI call on linux #39742

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Oct 14, 2021
Merged

🍒 5.5 [Concurrency] Limit queue width with set_width SPI call on linux #39742

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions stdlib/public/Concurrency/GlobalExecutor.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -266,7 +266,7 @@ static constexpr size_t globalQueueCacheCount =
static_cast<size_t>(JobPriority::UserInteractive) + 1;
static std::atomic<dispatch_queue_t> globalQueueCache[globalQueueCacheCount];

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

Expand All @@ -286,7 +286,7 @@ static dispatch_queue_t getGlobalQueue(JobPriority priority) {
if (SWIFT_LIKELY(queue))
return queue;

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

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