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#latency

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Not even bad the latency (this is just about latency, not overall bandwidth which reaches the full 4.9Gbit via 2x 2.5Gbit links).

Taken inside a Debian VM running on a Proxmox node connected to the storage:

GMKTec G9 NAS
2x 2.5Gbit
NFS 4.2 (with pNFS)
2x WD Back SN7100 NVMe
Mirror mode ZFS

While this are already pretty awesome latencies, let's see how it performs with SPDK and NVMe-oF (TCP).

This image is the of LatencyMon report after 12+ hours running on my studio system. The highest routine DPC actually occurred when I was watching early on, but it always does spike to over 500us when I run this test at some point, and it's always the cursed nvidia graphics card driver. All the latency figures are well low and LM still rates the system as good enough but... damn you nvidia...
#latency #daw #audio #nvidia #studio

Replied in thread

@shoppingtonz @alternativeto @torproject also every #Tunneling - regardless if #SSH or #VPN or whatever - will inevitably introduce #latency (unless you happen to be customer of a shitty #ISP with horrible #peering and thus can cut down on hops needed, which is AFAIK only a theoretical scenario)...

In fact I stopped using #HEnet #Tunnelbroker and #IPv6-#GIF-Tunneling because it created more issued than it solved on my #IPv4only #Internet connection…

I built a latency meter with an Arduino and a photo transistor to answer one question: Is click-to-photon latency higher on Wayland than on X11?

And the answer is: Yes, actually.

⏱️ 42 ms on X11, compositing off
⏱️ 56 ms on X11, compositing on
⏱️ 64 ms on Wayland
⏱️ 71 ms on Windows 10

Tested with Plasma 6.3.4 and Firefox 137. I will improve my methods and confirm these numbers. See replies for details.