rawhide20140523 boot.iso fails, kernel versions

[Chris Murphy]

On May 23, 2014, at 12:46 PM, Adam Williamson <awilliam at redhat.com> wrote:
> 
> I don't really find them 'astronomically' slow any more, now that
> slub_debug is left off most of the time. Slightly slower than regular
> kernels, sure, but perfectly fine for testing. Is it different on your
> setup?

kernel-core-3.15.0-0.rc6.git0.1.fc21.x86_64
# systemd-analyze
Startup finished in 905ms (kernel) + 1.445s (initrd) + 7.829s (userspace) = 10.180s

kernel-core-3.15.0-0.rc6.git1.1.fc21.x86_64
# systemd-analyze
Startup finished in 4.726s (kernel) + 14.750s (initrd) + 28.758s (userspace) = 48.235s

kernel-core-3.15.0-0.rc6.git1.1.fc21.x86_64 with slub_debug=-
# systemd-analyze
Startup finished in 4.666s (kernel) + 14.890s (initrd) + 28.142s (userspace) = 47.700s

And when the debug kernel is used for installing, the installs are likewise 4-5x longer. For me, it's not usable. The VM is vastly slower, and its host gets hotter and runs fans in noisy mode.


Chris Murphy