Kenneth Adam Miller <kennethadammil...@gmail.com> writes:
> Hello all, > > I just want to ask this one question: if I change the qemu tcg cache > size (TB_JMP_CACHE_SIZE), will that force any errors at run time? Hopefully not - for both user-mode and softmmu we take some care to ensure tb_jmp_cache_hash_func and tb_jmp_cache_hash_page return appropriately masked values for the table lookup. What has not been done since Emilio's work in 6f1653180f (tb-hash: improve tb_jmp_cache hash function in user mode) is a deeper look at the hit rate and bounce rate of the softmmu jump table hashing. Any suggested changes will need some benchmarking to show what difference it makes. -- Alex Bennée
