Performance Regression in ps-covered-id in mariadb 10.5.29 because of MDEV-15058

ps-covered-pk - select id from sbtest where id in ( 100 random ids) , regressed between 10.5.29 release to 10.4.34 release
Reference: https://smalldatum.blogspot.com/2026/04/cpu-bound-sysbench-on-large-server.html
On my laptop 6 core , it shows 10% drop and buf_pool_mutex is hot in 10.5.29