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Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implement
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented) |
Date: |
Fri, 22 Sep 2017 08:31:29 -0500 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 |
On 09/21/2017 04:59 AM, Thomas Huth wrote:
> $ time ppc64-softmmu/qemu-system-ppc64 -nographic -vga none -prom-env
> 'use-nvramrc?=true' -prom-env 'nvramrc=power-off'
> [...]
> real 0m13.953s
> user 0m13.904s
> sys 0m0.046s
>
> That's impressive! Richard, may I ask what's the current state of this?
> Do you plan to merge this soon, or are there still issues (like the ones
> that Paolo mentioned)?
I had been assuming that it would go in via the normal ppc tree.
If I should just merge it with tcg-next, I can do so...
> However, I only see that speed-up with the normal x86 backend. I've also
> tried it with TCI, but I hardly saw any improvements there ... is there
> still something missing in the TCI backend that is required for the
> tcg_gen_lookup_and_goto_ptr feature?
Yes.
r~
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), (continued)
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), Stefan Weil, 2017/09/11
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), Philippe Mathieu-Daudé, 2017/09/11
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), Stefan Weil, 2017/09/12
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), Stefan Weil, 2017/09/12
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), Thomas Huth, 2017/09/12
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), Paolo Bonzini, 2017/09/12
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), Thomas Huth, 2017/09/21
- Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented),
Richard Henderson <=
Re: [Qemu-devel] [PATCH] tcg/tci: do not use ldst label (never implemented), Philippe Mathieu-Daudé, 2017/09/11