Weekly edition	Kernel	Security	Distributions	Contact Us	Search
Archives	Calendar	Subscribe	Write for LWN	LWN.net FAQ	Sponsors

Day: GNOME OS

Posted Aug 9, 2012 2:37 UTC (Thu) by Company (guest, #57006)
In reply to: Day: GNOME OS by hummassa
Parent article: Day: GNOME OS

I'm not sure how you got to that comparison, but I'm waiting for you to prove me wrong. Go ahead.

(Log in to post comments)

Day: GNOME OS

Posted Aug 9, 2012 2:46 UTC (Thu) by mathstuf (subscriber, #69389) [Link]

First, that's not single *core*, but *socket* for the kernel build. Second, it's a $1050 processor. That's the Ferrari. I couldn't see what the build farm was using, but it's not /that/ good.

Better would be to compare Koji's build times for the packages (though you'll need to factor out the root.log time due to different dependencies). Bonus points for getting builds from the same host at low load.

Day: GNOME OS

Posted Aug 9, 2012 3:04 UTC (Thu) by mathstuf (subscriber, #69389) [Link]

The build farm is also running tests which I can imagine taking a long time. In fact, looking at the logs, they're using ccache which tells me that its 60 to 120 minutes of running tests which is more than the kernel can say.

Basically, your comparison is: "more" C is compiled by a top-of-the-line CPU in one minute than some random build farm hardware can test "less" C++ code. Never mind that the build farm builds also start by doing lots of PyPI installs (mostly cached) whereas the kernel build goes straight to building stuff.