jGetFun

@bandi13 Thanks for your comment. I have already used direct accessing to measure I/O performance of those block devices, no matter they were in user space or kernel space. I...

@bandi13 Thanks for your comment. To get the performance loss of nbd, I created a zero device in kernel space by `dmsetup` (/dev/dmzero), and exported a SPDK defined user space...

Hi @bandi13 ,thanks very much for your comment. I nearly forget that SPDK supporting NBD directly, and the SPDK NBD could provide about 600MB/s random reading bandwidth (based on a...

I mean the bandwidth of dm-zero (or spdk-zero) is scaling linearly with the addition of threads, but the bandwidth of NBD doesn't have this advantage.