Computer: 12" MacBook 1.3 GHz (512 GB SSD).
OS: OSX 10.11.1
Tick Tock:
1825 Turned ok Macbook for first time.
1830 Installed Pages, Numbers, Keynote, OSX El Capitan Update. Setup FileVault for Full Disk Encrpytion.
1900 Went to meeting, used Notes.
2000 Came back from meeting.
2100 Installed Sublime Text 3, Homebrew (XCode Command Line Tools).
2200 Installed dot files, but did not compleate (took forever, ironic).
2300 Watched end of Mets game.
0000 Battery at 30% plugged into wall charger to recharge.
0006 Started Download of XCode 7.1 from App Store.
0010 Download Complete
0200 Started Writing this.
0210 Still not installed.
Now I understand that these CPUs are terminally limited, and that they will underclock under heavy sustained load. That effect seems to be compounded with charging the device while using it's CPU intensivly. But over 2 hours to extract and install XCode 7.1 is insane. Progress is being made on the install, the bar moves slowly, very slowly towards the right of the screen. But it's still pretty crazy that it's taking this long.
Xcode is an absolute dog to install, it's heavy and slow regardless, but i had this exact same issue on a VirtualBox, i left it for about 4 hours and it made near zero progress.
I juiced up the VM ram from 4gb to 16gb, and it installed in about an hour for me. It seems clear RAM is the key, and with 16gb+ on a proper mac i imagine you'd get this under 30mins.
Always sucks when hardware is the issue.