2 ms·
As far as I know the only software that really wants it is SAP HANA. The slowdown should be small, that 40% speedup on emulation is specifically on load-locked/
by bonzini 7y ago
As far as I know the only software that really wants it is SAP HANA. The slowdown should be small, that 40% speedup on emulation is specifically on load-locked/store-conditional instructions, and the linked blog post says "non-TSX CPUs such as Ryzen [had] a noticeable improvement in performance, although not to the same extent".