On 07/06/2016 05:57 PM, [email protected] wrote: > [...] > Beyond just making a list, it would be nice to eventually make such > settings available in the GUI. Add a checkbox somewhere to allow > full-screen playback, but give a disclaimer to the user (again, just > like enabling unknown sources on Android gives a warning). Have > options to tune Xen's resource management, but make the user aware of > what they are wishing to do. I'm not saying give checkboxes to do > things like connecting dom0 to the network, but having options to > decrease resource isolation from VM to VM would be great for those > who prefer a little more performance over absolute security. Actually you can allow full-screen playback by fiddling in dom0 with /etc/qubes/guid.conf, the same place where you can allow utf8 window titles and change some other bits.
As for the memory usage, RAM is balanced by Xen but you can set your preferred limits (or force the usage of a specific amount) using Qubes Manager: right click on a Qube, choose "VM Settings" and go to the "Advanced" tab. There you can also set the number of VCPU for the VM. This seems to me an entry-level set of performance tuning knobs, and some are already exposed in the GUI... To achieve more you should just tune the operating system inside the virtual machines, and if you use the provided templates (or a clone of them you can customize), they are already a little stripped of useless things. I don't know if Xen allows for memory page deduplication, which I understand is the only actual "performance" boost (actually, memory pressure easing feature) that the hypervisor can give, and if this can be enabled in Qubes. This would still be safe, wouldn't it? Are there other performance tools that an hypervisor can implement? I'm writing from my main Qubes workstation, where I develop for Android with a .NET backend, and usually have a couple firefox instances (personal+work), a couple thunderbird instances (persoal+work), a skype instance (separate AppVM), MonoDevelop + Android Studio + Android emulator, with 32 GB of RAM, and a plain intel i5, and still it is a little faster and nicer than my fedora-only laptop, with 8 GB RAM and a recent intel i3. Give it RAM and it will rock.. YMMV, though. -- Alex -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/5807c23e-aee0-8345-a332-12851a7e4630%40gmx.com. For more options, visit https://groups.google.com/d/optout.
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