[cairo] Re: _cairo_lround
koen at dominion.kabel.utwente.nl
Wed Nov 22 09:47:58 PST 2006
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Koen Kooi schreef:
> Daniel Amelang schreef:
>> On 11/21/06, Koen Kooi <koen at dominion.kabel.utwente.nl> wrote:
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>>> Daniel Amelang schreef:
>>>> This doesn't help _that_ much on systems with an FPU (although it
>>>> doesn't hurt), but it does provide a 1.5x speedup for the text cases
>>>> on my softfloat tests. Notice that I'm using a x86 softfloat library
>>>> (with a libm also compiled for softfloat) running on my x86 machine,
>>>> so someone with a Nokia 770 needs to post their results for us to get
>>>> something truly meaningful.
>>> Does it have to be a nokia770? I have lots arm toys running X, but my
>>> n770 is needed for
>>> day to day uses.
>> Uh, not really. I think any ARM that doesn't have a FPU should produce
>> similiar numbers. Unless the X server version makes a diff, I suppose.
>> Still, the numbers would be useful.
> The perf for the vanilla git can be seen at http://www.angstrom-distribution.org/~koen/cairo/
> I'll make some .perfs with the patches later on and upload them to the same location,
> including the output(s) of cairo-perf-diff.
root at h2200:/data/cairo/perf# gdb .libs/cairo-perf-diff-files
GNU gdb 6.4
Copyright 2005 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "arm-angstrom-linux-gnueabi"...Using host libthread_db library
(gdb) run git-200610220-vanilla.perf foo.perf
Starting program: /data/cairo/perf/.libs/cairo-perf-diff-files git-200610220-vanilla.perf
Program received signal SIGSEGV, Segmentation fault.
0x00009d78 in _cairo_stats_compute ()
Cairo was natively compiled on the target.
any hints on this?
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