@amanita Sorry but there’s way too much text in this thread for me to read it at the moment (too busy) but at a quick glance…
- If you’re asking why the SATA drive is limited to 3Gbps, then read this : https://puri.sm/posts/coreboot-on-the-skylake-librems-part-2/
- If you’re asking when we’ll fix SATA so it can use 6Gbps, then the answer is never unfortunately. Note that months of work went into this and gave us no way to fix it, so it’s stuck at 3Gbps for now, which is not a big deal since 6Gbps is the theoretical max speed but SATA SSDs rarely reach those speeds. Your own SSD 840 Pro SATA according to this benchmark has a max write speed of 365MB/s (2.92 Gbps) and a read speed of 455MB/s (3.64 Gbps), so the loss is minimal.
- if you’re asking why your NVMe is slower on the librem than on some other machine : no idea, It might be a hardware configuration (NVMe is PCI-express, so maybe the x2 or x4 or whatever is what affects), it might be a kernel driver or a windows vs linux (your other test was on windows?) or anything like that. I haven’t seen anything about nvme in coreboot config, but maybe I can look and find something, can you give me a summary of the issue, I got lost with all the numbers you posted before?
If you have a more specific question, please ask it directly without expecting me to be able to read all 24 messages to understand it (sorry!)