rawhide20140523 boot.iso fails, kernel versions

[Gene Czarcinski]

On 05/27/2014 12:56 AM, Chris Murphy wrote:
> 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.
>
OK, would this "slow kernel" show itself as "long" pauses between 
packages when installing.  Also, an install for a simple LXDE desktop 
seems to be taking about 20 minutes.  Is this a long or a good/short 
time?  All of this is withj a qemu-kvm virtual system with 2 VCPU, 2GB 
memory and 8GB virtual disk.  The input is a DVD iso on host disk.

Gene