Re: [Qemu-devel] [PATCH 0/4] target/arm: Reduce overhead of cpu_get_tb_cpu_state

2019-02-14 Thread Emilio G. Cota
On Wed, Feb 13, 2019 at 20:06:48 -0800, Richard Henderson wrote: > We've talked about this before, caching state to reduce the > amount of computation that happens looking up each TB. > > I know that Peter has been concerned that we would not be able to > reliably maintain all of the places that

Re: [Qemu-devel] [PATCH 0/4] target/arm: Reduce overhead of cpu_get_tb_cpu_state

2019-02-14 Thread Alex Bennée
Richard Henderson writes: > We've talked about this before, caching state to reduce the > amount of computation that happens looking up each TB. > > I know that Peter has been concerned that we would not be able to > reliably maintain all of the places that need to be updates to > keep this up-

Re: [Qemu-devel] [PATCH 0/4] target/arm: Reduce overhead of cpu_get_tb_cpu_state

2019-02-14 Thread Laurent Desnogues
Hi Richard, On Thu, Feb 14, 2019 at 5:07 AM Richard Henderson wrote: > > We've talked about this before, caching state to reduce the > amount of computation that happens looking up each TB. > > I know that Peter has been concerned that we would not be able to > reliably maintain all of the places

[Qemu-devel] [PATCH 0/4] target/arm: Reduce overhead of cpu_get_tb_cpu_state

2019-02-13 Thread Richard Henderson
We've talked about this before, caching state to reduce the amount of computation that happens looking up each TB. I know that Peter has been concerned that we would not be able to reliably maintain all of the places that need to be updates to keep this up-to-date. Well, modulo dirty tricks with