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   da_667 (da_667@infosec.exchange)'s status on Sunday, 27-Apr-2025 06:16:35 JST da_667

   today I've learned that ethtool doesn't work to check link or duplex speed on virtio devices because the VM and the host are aware its a virtual machine, and just yeets frames between VMs, or out the hypervisor's interface (if bridged) at link speed.

   • Embed this notice
     Reasonable Man (r000t@ligma.pro)'s status on Sunday, 27-Apr-2025 06:16:34 JST Reasonable Man

     in reply to

     @da_667 yeah that's one of the reasons virtio is super important to explicitly install on windows hosts and not just use E1000

     you played with anything that uses ivshmem yet?

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     Reasonable Man (r000t@ligma.pro)'s status on Sunday, 27-Apr-2025 06:24:59 JST Reasonable Man

     in reply to

     @da_667 For those who play games in a VM, there's a project https://looking-glass.io/ that basically just has a shared framebuffer and a "doorbell" so the VM can say a frame's ready

     then the other end picks it up and paints a window with it

     same idea, no compression, frames just hit the shared memory and the doorbell is pressed

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     da_667 (da_667@infosec.exchange)'s status on Sunday, 27-Apr-2025 06:25:00 JST da_667

     in reply to

     • Reasonable Man

     @r000t can't say that I have