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unixhero 10 hours ago [-]
Why is Xen a thing when we have great and free KVM virtualization? Honest and dumb question.
CorrectHorseBat 9 hours ago [-]
KVM has a much larger attack surface than Xen
tjoff 9 hours ago [-]
Why is KVM a thing when we have great and free Xen virtualization?
unixhero 6 hours ago [-]
Which hypervisors are free with Xen?
rickydroll 6 hours ago [-]
xcp-ng. You can use a built-in mini-management tool (xo-lite) to build the full-featured management tool (Xen Orchestra) from git. There are a couple of maintained scripts that automate the process.
I like it because it is not a bag of parts. Everything is included. It is a VM toolkit that JFW, and it is not what keeps me awake at night
twoodfin 9 hours ago [-]
This article is a great example of the limits of LLM technical writing.
Say what you will about—or try to prompt out—their rhetorical flourishes, they can link together a series of background, observations, implications, …
But man, they are hopeless at crafting a high-level narrative. It’s one big hedge maze of a garden path:
This part makes good on that - and along the way it covers two things we did not plan to fix. One we hit before the real work could start: dom0's own memory placement was so skewed that synthesising a topology for dom0 without fixing it first would have been an exercise in lying to a kernel that had no memory to back the lie with. That one is a prerequisite, not a detour - everything else in this part is built on top of it. The other we hit after the work was nominally done: a memory-placement bug in our own toolstack that had been silently broken for as long as multi-vnode vNUMA had existed in our tree, and only ever surfaced under a memory-bandwidth benchmark. That one is the genuine detour, and it waits until the end.
Let's start with the prerequisite.
Where are we going here and why?!
actionfromafar 6 hours ago [-]
And what's so tiring is that with humans, there's often (not always) a coherent meaning there to be untangled. With the LLMs, probably not, because if there was, it would have been in the prompt and the rambling wouldn't be as bad.
I like it because it is not a bag of parts. Everything is included. It is a VM toolkit that JFW, and it is not what keeps me awake at night
Say what you will about—or try to prompt out—their rhetorical flourishes, they can link together a series of background, observations, implications, …
But man, they are hopeless at crafting a high-level narrative. It’s one big hedge maze of a garden path:
This part makes good on that - and along the way it covers two things we did not plan to fix. One we hit before the real work could start: dom0's own memory placement was so skewed that synthesising a topology for dom0 without fixing it first would have been an exercise in lying to a kernel that had no memory to back the lie with. That one is a prerequisite, not a detour - everything else in this part is built on top of it. The other we hit after the work was nominally done: a memory-placement bug in our own toolstack that had been silently broken for as long as multi-vnode vNUMA had existed in our tree, and only ever surfaced under a memory-bandwidth benchmark. That one is the genuine detour, and it waits until the end.
Let's start with the prerequisite.
Where are we going here and why?!