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Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line
From: |
Emilio G. Cota |
Subject: |
Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line |
Date: |
Tue, 13 Nov 2018 20:00:14 -0500 |
User-agent: |
Mutt/1.9.4 (2018-02-28) |
On Mon, Nov 12, 2018 at 22:44:46 +0100, Richard Henderson wrote:
> Based on an idea forwarded by Emilio, which suggests a 5-6%
> speed gain is possible. I have not spent too much time
> measuring this, as the code size gains are significant.
Nice!
> I believe that I posted an x86_64-only patch some time ago,
> but this now includes i386, aarch64 and arm32. In late
> testing I do some failures on i386, for sparc guest. I'll
> follow up on that later.
The following might be related: I'm seeing segfaults with -smp 8
and beyond when doing bootup+shutdown of an aarch64 guest on
an x86-64 host. smp -1 is stable AFAICT. The first commit that
shows these crashes is "tcg/i386: Use TCG_TARGET_NEED_LDST_OOL_LABELS",
that is f7ec49a51c8 in your tcg-tlb-x86 github branch.
Thanks,
Emilio
- [Qemu-devel] [PATCH for-4.0 09/17] tcg/aarch64: Parameterize the temps for tcg_out_tlb_read, (continued)
- [Qemu-devel] [PATCH for-4.0 09/17] tcg/aarch64: Parameterize the temps for tcg_out_tlb_read, Richard Henderson, 2018/11/12
- [Qemu-devel] [PATCH for-4.0 07/17] tcg/i386: Use TCG_TARGET_NEED_LDST_OOL_LABELS, Richard Henderson, 2018/11/12
- [Qemu-devel] [PATCH for-4.0 11/17] tcg/aarch64: Use B not BL for tcg_out_goto_long, Richard Henderson, 2018/11/12
- [Qemu-devel] [PATCH for-4.0 13/17] tcg/arm: Parameterize the temps for tcg_out_tlb_read, Richard Henderson, 2018/11/12
- [Qemu-devel] [PATCH for-4.0 12/17] tcg/aarch64: Use TCG_TARGET_NEED_LDST_OOL_LABELS, Richard Henderson, 2018/11/12
- [Qemu-devel] [PATCH for-4.0 14/17] tcg/arm: Add constraints for R0-R5, Richard Henderson, 2018/11/12
- [Qemu-devel] [PATCH for-4.0 16/17] tcg/arm: Force qemu_ld/st arguments into fixed registers, Richard Henderson, 2018/11/12
- [Qemu-devel] [PATCH for-4.0 15/17] tcg/arm: Reduce the number of temps for tcg_out_tlb_read, Richard Henderson, 2018/11/12
- [Qemu-devel] [PATCH for-4.0 17/17] tcg/arm: Use TCG_TARGET_NEED_LDST_OOL_LABELS, Richard Henderson, 2018/11/12
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, no-reply, 2018/11/13
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line,
Emilio G. Cota <=
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Richard Henderson, 2018/11/15
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Emilio G. Cota, 2018/11/15
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Richard Henderson, 2018/11/15
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Richard Henderson, 2018/11/15
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Emilio G. Cota, 2018/11/15
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Emilio G. Cota, 2018/11/16
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Richard Henderson, 2018/11/16
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Emilio G. Cota, 2018/11/16
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Richard Henderson, 2018/11/16
- Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line, Emilio G. Cota, 2018/11/16