Re: LuaJIT on Efika MX Smartbook (ARMv7)

["Dimiter \"malkia\" Stanev" <malkia@...>]

Hm... I can't get any symbols out of luajit and I know it exports them 
for linux and other platforms. "nm luajit" just gives "no symbols".

I think it has more to do with Efika MX Ubuntu's 10.10 rather than 
luajit's Makefile, as other things are failing too (to find it's symbols).

Or the bintools nm is broken??

malkia@genesibox:~/p/luajit/src$ git log -1
commit dab4bcafba789c7954dc4f90623c81365dcedb7f
Author: Mike Pall <mike>
Date:   Mon May 16 02:43:14 2011 +0200

    Add target-specific macro for stack alignment in assembler backend.

malkia@genesibox:~/p/luajit/src$ ls -l luajit
-rwxr-xr-x 1 malkia malkia 161556 2011-05-16 13:52 luajit

malkia@genesibox:~/p/luajit/src$ nm luajit
nm: luajit: no symbols

malkia@genesibox:~/p/luajit/src$ size luajit
   text    data     bss     dec     hex filename
 157693     648      20  158361   26a99 luajit

malkia@genesibox:~/p/luajit/src$ ldd luajit
        libm.so.6 => /lib/libm.so.6 (0x2aabd000)
        libdl.so.2 => /lib/libdl.so.2 (0x2ab2b000)
        libc.so.6 => /lib/libc.so.6 (0x2ab37000)
        /lib/ld-linux.so.3 (0x54aaa000)

malkia@genesibox:~/p/luajit/src$ uname -a
Linux genesibox 2.6.31.14.20-efikamx #2 PREEMPT Mon Feb 28 21:18:36 CST 
2011 armv7l GNU/Linux


On 5/11/2011 10:33 AM, Dimiter "malkia" Stanev wrote:
> Some results on Efika MX smartbook (I'm very happy!):
>
> Note: LuaJIT is running with (-joff, e.g. JIT off on this architecture
> right now). But even without it, the results are impressive!
>
> I would also test it on the Efika MX smarttop (very small cute device,
> but I expect the same results).
>
> This is running on Ubuntu 11.04 (just upgraded it from Ubuntu 10.10).
>
> malkia@genesi:~/p/luajit$ git log -1
> commit b79cdba3a06cbabb772535b5bce18d6460135845
> Author: Mike Pall <mike>
> Date: Tue May 10 16:55:23 2011 +0200
>
> Tuning loop unrolling heuristics again.
> malkia@genesi:~/p/luajit$ cat /proc/cpuinfo
> Processor : ARMv7 Processor rev 5 (v7l)
> BogoMIPS : 799.53
> Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3
> CPU implementer : 0x41
> CPU architecture: 7
> CPU variant : 0x2
> CPU part : 0xc08
> CPU revision : 5
>
> Hardware : Genesi Efika MX (Smartbook)
> Revision : 51030
> Serial : 0000000000000000
> malkia@genesi:~/p/luajit$ lua ../scimark.lua
> Lua SciMark 2010-12-10 based on SciMark 2.0a. Copyright (C) 2006-2010
> Mike Pall.
>
> FFT 1.36 [1024]
> SOR 2.82 [100]
> MC 0.90
> SPARSE 1.58 [1000, 5000]
> LU 1.89 [100]
>
> SciMark 1.71 [small problem sizes]
> malkia@genesi:~/p/luajit$ src/luajit ../scimark.lua
> Lua SciMark 2010-12-10 based on SciMark 2.0a. Copyright (C) 2006-2010
> Mike Pall.
>
> FFT 2.14 [1024]
> SOR 6.49 [100]
> MC 1.72
> SPARSE 4.70 [1000, 5000]
> LU 5.39 [100]
>
> SciMark 4.09 [small problem sizes]
> malkia@genesi:~/p/luajit$