[libcxx-commits] [libcxx] [libc++] Allows any types of size 4 and 8 to use native platform ulock_wait (PR #161086)

[Mikael Holmen via libcxx-commits]

mikaelholmen wrote:


Hello @huixie90 

Downstream we kind of often see timeouts for the lost_wakeup.pass.cpp testcase added here.

I'm not sure what's happening but I ran the test manually a number of times now, and at first it took like 1-2 seconds on every run. Then suddenly it started running for like 100 seconds. It seems to be affected quite a bit by the load of the machine it is running on, and the load on our servers vary a lot.

I've disabled the testcase downstream because it fails too often for us, but thought I'd mention here too that we see flakiness related to it, probably related to the machine load.

We're running on linux, RHEL 8 machines.

https://github.com/llvm/llvm-project/pull/161086