[Lldb-commits] [lldb] [lldb/test] Add yield to spin loop in thread_filter test (PR #191025)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lldb

Author: Med Ismail Bennani (medismailben)

<details>
<summary>Changes</summary>

This should fix: https://lab.llvm.org/buildbot/#/builders/211/builds/7439

The timeout might be caused by three threads busy-spinning at 100% CPU, starving the CI machine.

Add std::this_thread::yield() to the spin loop to reduce CPU pressure while keeping threads alive at a debugger-friendly location.

---
Full diff: https://github.com/llvm/llvm-project/pull/191025.diff


1 Files Affected:

- (modified) lldb/test/API/functionalities/scripted_frame_provider/thread_filter/main.cpp (+1-1) 


``````````diff
diff --git a/lldb/test/API/functionalities/scripted_frame_provider/thread_filter/main.cpp b/lldb/test/API/functionalities/scripted_frame_provider/thread_filter/main.cpp
index 90dc6aee1ac27..2f73b97846619 100644
--- a/lldb/test/API/functionalities/scripted_frame_provider/thread_filter/main.cpp
+++ b/lldb/test/API/functionalities/scripted_frame_provider/thread_filter/main.cpp
@@ -12,7 +12,7 @@ void thread_work() {
   while (g_barrier.load() > 0)
     ;
   while (g_spin) // break in thread
-    ;
+    std::this_thread::yield();
 }
 
 int main() {

``````````

</details>


https://github.com/llvm/llvm-project/pull/191025