Soft freeze for the glibc-2.43 release

[Wilco Dijkstra]

Hi Florian,

>> I've got the patches ready for commit, I can push them later.

Pushed now. There is a few more bits of dead code that can be removed.

>> My only concern is the tcache count value - it appears we might need
>> 32 rather than 16 to break even on SPEC.
>
> I plan to post my batched free changes.  Do they reach parity with 32?
> Average tcache consumption should be less because we are not filling
> it as aggressively.

Yes with tcache_count=32 the geomean of omnetpp and xalancbmk is within 0.1%.

Cheers,
Wilco