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Re: [Qemu-devel] [PATCH v2 00/14] TCG ppc speedups
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH v2 00/14] TCG ppc speedups |
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Date: |
Fri, 19 Sep 2014 17:16:33 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 |
Il 18/09/2014 22:43, Tom Musta ha scritto:
> I also attempted to identify the speedup of just these patches. My
> test was booting an Ubunutu 14.04 (PPC64LE) image to the login
> prompt, checking some of the timestamps along the way. I was able to
> observe a speedup on a modest sized laptop (x86) host -- about 2%. I
> did not see any difference on a Power7 host.
>
You probably can get a higher speedup on user-mode emulation. I saw a
much smaller difference on my old G4 laptop too, compared to x86.
Paolo
- Re: [Qemu-devel] [PATCH 10/14] ppc: use movcond for isel, (continued)
- [Qemu-devel] [PATCH 11/14] ppc: store CR registers in 32 1-bit registers, Paolo Bonzini, 2014/09/15
- [Qemu-devel] [PATCH 12/14] ppc: use movcond to implement evsel, Paolo Bonzini, 2014/09/15
- [Qemu-devel] [PATCH 13/14] ppc: inline ppc_set_crf when clearer, Paolo Bonzini, 2014/09/15
- [Qemu-devel] [PATCH 14/14] ppc: dump all 32 CR bits, Paolo Bonzini, 2014/09/15
- Re: [Qemu-devel] [PATCH v2 00/14] TCG ppc speedups, Tom Musta, 2014/09/18
- Re: [Qemu-devel] [PATCH v2 00/14] TCG ppc speedups,
Paolo Bonzini <=