[Devtools] CDK performance ideas

[Lalatendu Mohanty]

On 04/19/2016 01:44 PM, David Kutalek wrote:
> Hi folks,
>
> there are some ideas for future sppedup of cdk box I had in queue,
> want to give them out now in expectation that someone on developer side
> can engage more.
>
> 1) Grub delay
>
>     Grub has 5 seconds timeout in CDK. We can probably change to 1 or even 0.
>
> 2) Initrd delay
>
>     Roughly 4 seconds, probably not worth the optimization in first round.
>
> 2) Starting services
>
>     Probably starting bunch of services which are not needed.
>     By far longest one is kdump.
>
>     - quickly tried systemd-analyze on CDK after first boot:
>       - biggest thing - kdump took ~ 25seconds and system is waiting for it
>         do we need it in cdk box by default?
>       - probably bunch of small things for no reason, like
>         wpa supplicant service - no wifi in cdk
>     - we could investigate possibilities of
>       systemd-readahead-collect and systemd-readahead-replay
>       (although probably not so useful in vm)
>
> Hope this helps,
>
> David
>

David,

Thanks for these ideas about CDK performance improvements. We definitely 
should work on these.

-Lala