What are the chances of a phone based developer image

Jim Huang jserv at 0xlab.org
Wed Aug 10 16:11:31 UTC 2011


2011/8/10 Ramana Radhakrishnan <ramana.radhakrishnan at linaro.org>:
>> . Would you be interested in adding a Firefox-based benchmark? As a large
>> application it is a good testbed for LTO, FDO and other aggressive
>> optimizations.
>
> I would be interested in hearing how you get on with LTO and FDO on
> ARM. Listening to Honza talking at the GCC unconference in London
> about the memory usage for full LTO with trunk I did wonder what would
> happen if we tried it on the ARM target to see what we got, but I
> never managed to get around to trying anything there :) . We did look
> at getting FDO working with Linaro GCC last cycle but there are still
> a couple of issues with PGO in Linaro GCC 4.5.

FYI.
The toolchain benchmark suite derived from Google already includes the
FDO mode, and I would suggest to enable it for comparisons.

Android build system has (incomplete) FDO integration since Android
2.2[*].  In my experience, it sometimes helps the performance for
special cases slightly.

Sincerely,
-jserv

[*] The build system would perform "build-run-build" scheme with the
help of ADB, which deploys the profiler on target.
Option: BUILD_FDO_INSTRUMENT



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