On Tue, Oct 24, 2017 at 09:30:06PM +0200, Hartmut Goebel wrote: > Hello, > > for testing I used to build VM using "guix system vm …" and the machines > are, well, reacting slowly: > > Plasma start up: 80 sec. > > Menu: 36 sec > > When I tried a Vm created with "guix system vm-image …" the machine is > much quicker: > > Plasma start up: 25 sec. > > Menu: immediately. > > This is a huge contrast, so I wonder what is the reason for this. Any > ideas? And any ideas how to speed up the first variant?
The two methods are pretty different "under the hood". `guix system vm` shares the store with the host machine using virtio. By default, only 256 MB of RAM is allocated for the system. I recommend inspecting the script that is created by `guix system vm` to see what it does. `guix system vm-image`, on the other hand, is a full virtual machine image, with its own store. It's hard to give specific feedback without more information about the host machine(s) and other details of the environment.
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