Mike Hommey wrote:
On Tue, Aug 09, 2011 at 07:32:51PM -0300, Christian Robottom Reis wrote:
On Tue, Aug 09, 2011 at 03:08:53PM -0700, Taras Glek wrote:
> >You should definitely be trying to build using the Linaro 4.5 and 4.6
> >compiler branches; they are pretty much guaranteed to give you better
> >performance, and if they don't, we're on the hook to fix it quickly! All
> >the patches go upstream, so there is no risk of you being stuck on a
> >fork -- it just makes everything you need available right now.
> Mike, can you give these a try?
Also, the 4.5 branch is likely to perform better for a while; once 4.6
has caught up 4.5 goes into stable mode.
If you are on a platform with NEON (i.e. not a Tegra2) experimenting
with on -O3 and -mfpu=neon might get some interesting results as that
enables the NEON auto-vectorizing Ira has been working on; given it's
Mozilla, you might also get an ICE though ;-) Tell us how it goes.
That's unfortunately not something that can work for us, except if we
start distributing a different android build for NEON and non-NEON.
you should consider that. Otherwise you will penalize future devices
that will all have neon by forcing Tegra2 "legacy" support onto them.
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