On 15 August 2012 05:36, Michael Hope <[email protected]> wrote: > Hi Matt. I've fleshed out the Etherpad for the PGO and LTO session at: > http://pad.linaro.org/GzRj35tXFt
I've expanded it a bit further. > It's a topic list that needs some specifics. Could you make sure we > have basic answers to any correctness or performance questions? 'We are as correct as upstream - I found 101 PRs which are in the LTO/gcov-profile components. There are others. The performance of PGO on 'a popular embedded benchmark' is 14% improvement, LTO is 7%. Don't know both together, or SPEC. > Ramana, could you add the specifics from the performance call? I > can't seem to find the right meeting in the logs. Ramana and I had a discussion this afternoon - I think my strawman proposal for a blueprint for the next 3-6 months. goes something like the following: * Get Hot/Cold partitioning working * Pick a benchmark/application and ensure PGO/LTO works for it * Then look at how the performance changes, and find the changes * I-I into the next app to look at, and what needs doing. Candidates for the benchmark/application: * Spec * Firefox * Linux Kernel * OpenOffice/LibreOffice SPEC is because Ramana's current Hot/Cold partitioning breaks it. Firefox, Linux, and OOo all have bugs raised against them in the GCC BugZilla - indicating people are interested in them. But a discussion at the session at what others would be interested in would be good. Do we need a slide as Kiko suggested or will the EtherPad be good enough? I plan to be lurking at the VC session into Android later on today so we can have a side discussion then if you want. Thanks, Matt -- Matthew Gretton-Dann Linaro Toolchain Working Group [email protected] _______________________________________________ linaro-toolchain mailing list [email protected] http://lists.linaro.org/mailman/listinfo/linaro-toolchain
