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event/Loop: initialize io_uring with IORING_SETUP_SINGLE_ISSUER

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This might give tiny kernel-side optimizations.
This commit is contained in:
Max Kellermann
2025-01-29 20:29:27 +01:00
parent ea2ced6b9f
commit e309941646
1 changed files with 2 additions and 1 deletions

3
src/event/Loop.cxx

@ -61,7 +61,8 @@ EventLoop::GetUring() noexcept
if (!uring_initialized) { if (!uring_initialized) {
uring_initialized = true; uring_initialized = true;
try { try {
uring = std::make_unique<Uring::Manager>(*this); uring = std::make_unique<Uring::Manager>(*this, 1024,
IORING_SETUP_SINGLE_ISSUER);
} catch (...) { } catch (...) {
fprintf(stderr, "Failed to initialize io_uring: "); fprintf(stderr, "Failed to initialize io_uring: ");
PrintException(std::current_exception()); PrintException(std::current_exception());