[diekhans]

Has this been reported to apple? One would think they would pay attention to something that makes the M1 look slow it it reaches the right people.

I18N was one of the few things POSIX didn't do well. Have an environment variable change the sort command causes lots grief.

[varenc]

I went and filed this with Apple, radar #9930566, just referencing the blog post. I wouldn't assume the engineering team responsible for this code at Apple is reacting to HN posts so I figure it's still worth reporting.

Nows a good time to rant about Apple's entirely opaque bug tracking process. Every bug you file is private. The only way to know if a bug has already been filed is to file a new issue and see if they close it as a duplicate or not.

[pjscott]

It’s on the front page of HN; I think it’s a safe bet that Radars have been filed — though I’m not sure what can be done about this. The fact that they were using os_unfair_lock indicates that someone has looked at the relevant code and tried to make it efficient; the default is a pthread_mutex_t.