Upgrade Raspberry Pi 4 with a NVMe boot drive

Re:Upgrade Raspberry Pi 4 with a NVMe boot drive by geerlingguy on Monday November 23, 2020 @06:35PM (#25193257)

Just wanted to note that you DO get a large (measurable) performance increase using NVMe natively via the Pi's PCIe bus vs. through a USB 3.0 adapter; see my notes in my Compute Module 4 review: https://www.jeffgeerling.com/blog/2020/raspberry-pi-compute-...

I should probably dedicate a post and video to NVMe support, but basically you get double the random IO numbers if using NVMe vs NVMe-via-USB3. You can't boot off internal NVMe though, at least not natively with no microSD card or eMMC volume.

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Re:Upgrade Raspberry Pi 4 with a NVMe boot drive by FullyFunctional on Monday November 23, 2020 @09:18PM (#25194560)

Thanks for the write up. That was enlightening. PCIe is a really nice "bus" all things considered. At DSSD we liked it so much that we ran it directly to clients, over custom cables & connectors.

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Re:Upgrade Raspberry Pi 4 with a NVMe boot drive by brirec on Monday November 23, 2020 @10:27PM (#25194971)

What sort of distance are we talking? What sort of devices? Running a PCIe lane to a client seems a little odd to me, but I figure I’m missing context

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Re:Upgrade Raspberry Pi 4 with a NVMe boot drive by FullyFunctional on Tuesday November 24, 2020 @12:06AM (#25195459)

Up to 2 m over copper, longer over active optical. Why? Because of insanely low latency and very high bandwidth (PCIe gen 3 x4 in 2010!). No kernel involvement, app direct to storage. Way ahead of the time.

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Re:Upgrade Raspberry Pi 4 with a NVMe boot drive by alexellisuk on Tuesday November 24, 2020 @07:32AM (#25197841)

Looking forward to getting my hands on one :-) Next time you speak to the RPi folks, feel free to name-drop. Getting into the "RPi alpha tester club" would be very helpful for writing tutorials like this.

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