[+CC Jens as he is the block, I/O scheduler, NVMe, etc., maintainer] Hi Tim, [...] > What would a more appropriate way of testing PCIe performance be? I am adding Jens here for visibility as he does a lot of storage and I/O performance testing on various platforms and with various hardware, he also wrote fio[1], which I would recommend for testing over dd, and also is a NVMe driver maintainer. If he has a moment, then perhaps he could give us some tips too. 1. https://github.com/axboe/fio Krzysztof