Re: ARM VFP + hard-float ABI support in git HEAD
- From: François Perrad <francois.perrad@xxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Mon, 13 Aug 2012 09:53:24 +0200
2012/8/12 Mike Pall <mike-1208@xxxxxxxxxx>:
> Alex Bradbury wrote:
>> Here's a sample scimark.lua run on the Raspberry Pi at stock
>> frequencies (ARM1176 700Mhz):
>>
>> SciMark 27.51 [small problem sizes]
>
> Not too bad! I don't remember what the pure soft-float performance
> was -- something in the one-digit number range. Can't easily try
> this out right now, since I've already installed the hard-float
> image on my RPi.
>
> Would be interesting to see the results for Cortex-A8 and Cortex-A9
> cores of recent smartphones, in comparison.
>
> BTW: An Intel Core 2 E8400 3.0 GHz gets a score of ~780 and
> an Intel Atom N270 1.6 GHz gets a score of ~125.
>
with Genesi Efika / i.MX515 (Cortex A8) @800 MHz
$ luajit # release beta10
LuaJIT 2.0.0-beta10 -- Copyright (C) 2005-2012 Mike Pall. http://luajit.org/
JIT: ON ARMv6 ARMv6T2 ARMv7 fold cse dce fwd dse narrow loop abc fuse
> ^C
$ luajit scimark.lua
Lua SciMark 2010-12-10 based on SciMark 2.0a. Copyright (C) 2006-2010 Mike Pall.
FFT 4.48 [1024]
SOR 14.20 [100]
MC 6.85
SPARSE 8.03 [1000, 5000]
LU 10.21 [100]
SciMark 8.75 [small problem sizes]
$ luajit # HEAD
LuaJIT 2.0.0-beta10 -- Copyright (C) 2005-2012 Mike Pall. http://luajit.org/
JIT: ON ARMv7 VFPv3 fold cse dce fwd dse narrow loop abc sink fuse
> ^C
$ luajit scimark.lua
Lua SciMark 2010-12-10 based on SciMark 2.0a. Copyright (C) 2006-2010 Mike Pall.
FFT 18.29 [1024]
SOR 54.50 [100]
MC 19.34
SPARSE 39.96 [1000, 5000]
LU 26.67 [100]
SciMark 31.75 [small problem sizes]
François
> --Mike
>
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