Considering that running microbenchmarks on phone hardware is problematic (thermal throttling messes things up, normal shell environment isn't available to the harness, limited number of phones available to perfherder, etc.), considering that it's easier to run GNU/Linux in the cloud than it is to run Android and considering that Gecko internals should compile roughly the same way for GNU/Linux and Android on aarch64 and armv7, is getting some of our tryserver performance tests (such as the GTest platform microbenchmarks) running on in the cloud on GNU/Linux on aarch64 and GNU/Linux armv7+neon on any active todo list?
Packet.net seems to provide bare-metal aarch64 in the cloud. I don't know who provides bare-metal armv7+neon in the cloud. Scaleway's bare-metal armv7 lacks neon. Additionally, ARMv7 code running on an ARMv8 core seems to have different enough microbenchmark behavior that ARMv7 benchmarks really should be run on an ARMv7 core to be representative of ARMv7 deployment. (Currently, of course, a good proportion of our Android users run ARMv7 code on an ARMv8 CPU, but, naively, I'm hoping that we'll ship Fennec on aarch64 soon enough for that combination to stop being interesting for benchmarking soon enough.) -- Henri Sivonen hsivo...@hsivonen.fi https://hsivonen.fi/ _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
