2 ms·
No, there's firmware on the Apple NVMe drives doing FTL, etc. and exposing a traditional block device.
by monocasa 5y ago
No, there's firmware on the Apple NVMe drives doing FTL, etc. and exposing a traditional block device.
- my123 5y agoIt's on the main SoC on M1. (ANS2 block, with the FW being loaded by iBoot1) NVMe exposed as an MMIO device directly, not as a PCIe one.
- vlovich123 5y agoMy knowledge was about the first iPhone since I swear I sat next to the guy implementing it (I was an intern at the time). Maybe Apple was just writing the FW themselves and I’ve misremembered? Apple devices definitely have better I/O performance than any other mobile device from what I recall.