* Mark Wielaard:
>> Current glibc versions have a thread-local fast path, which should
>> address some of these concerns. It's still not a bump-pointer
>> allocator, but at least there are no atomics on that path.
>
> Since which version of glibc is there a thread-local fast path?
It was added in:
commit d5c3fafc4307c9b7a4c7d5cb381fcdbfad340bcc
Author: DJ Delorie <d...@delorie.com>
Date: Thu Jul 6 13:37:30 2017 -0400
Add per-thread cache to malloc
So glibc 2.26. But it is a build-time option, enabled by default, but
it can be switched off by distributions.
