On Sun, Mar 29, 2020 at 04:13:31PM +0100, Ken Moffat via blfs-dev wrote: > On Sat, Mar 28, 2020 at 12:48:38AM +0100, Uwe Düffert via blfs-dev wrote: > > > When I built rustc 1.40.0, 1.41.0 and 1.41.1 I used all 8 cores. It > seemed to me that the install phase was taking a long time, but I > didn't think too much about that. > > For the book, we want timings with 4 cores, so I took the siblings > offline. A manual ./x.py build took just under 56 minutes. I then > started the (DESTDIR) install - on 1.39.0 the other day, that took 8 > minutes and I was surprised at how quick it seemed. With 1.42.0 > that took over 57 minutes (longer than the 'build'). Total is 65 > SBU, and the tests took 17 SBU. > > The build of 1.42.0 using system llvm was smaller than 1.39.0 with > its shipped llvm. Oh, and while all of the build, install and test > were running (for measuring, I do tests afterwards, to see how the > space changes) from time to time the desktop was unusable, e.g. lost > a few characters when typing a mail. > I've just realised that the machine had gone into swap at some point (I only had about 7 terms, two firefoxes (esr, beta) and lo-calc open) so I suppose that the install time will not usually be so bad. Maybe I'll remeasure.
But please, don't anyone tell me that testing rust for the book is quick :-( ĸen -- When alle is ſayed and all is done, ye must chooſe your faces wisely, for soon enouff ye will be playing with fyre." The Nice and Accurate Prophecies of Agnes Nutter, Prophecy 5004 -- http://lists.linuxfromscratch.org/listinfo/blfs-dev FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
