> On 16 Jan 2018, at 7:02 pm, Ralph Giles <gi...@mozilla.com> wrote: > > On my Lenovo P710 (2x2x6 core Xeon E5-2643 v4), Fedora 27 Linux > > debug -Og build with gcc: 12:34 > debug -Og build with clang: 12:55 > opt build with clang: 11:51
I didn’t succeed in booting linux unfortunately. so I can’t compare… 12 minutes sounds rather long, it’s about what the macpro is currently doing. I typically get compilation times similar to mac... > > Interestingly, I can almost no longer get any benefits when using icecream, > with 36 cores it saves 11s, with 52 cores it saves 50s only… > > Are you staturating all 52 cores during the buidls? Most of the increase in > build time is new Rust code, and icecream doesn't distribute Rust. So in > addition to some long compile times for final crates limiting the minimum > build time, icecream doesn't help much in the run-up either. This is why I'm > excited about the distributed build feature we're adding to sccache. icemon certainly shows all machines to be running (I ran it with -j36 and -j52) > > I'd still expect some improvement from the C++ compilation though. > > It’s a very sweet machine indeed > > Glad you finally got one! :) > probably will return it though, prefer to wait on the next mac pro.
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