On 08.12.2020 08:40, Johannes Thumshirn wrote:
On 07/12/2020 20:27, Javier González wrote:
Good point. We can share some performance data on how Simple Copy scales
in terms of bw / latency and the CPU usage. Do you have anything else in
mind?
With an emulation in the kernel, we could make the usd "backend"
implementation configurable. So if the emulation is faster, users can select
the emulation, if the device is faster then the device.
Kind of what the crypto and raid code do as well.
Good idea. Are you thinking of a sysfs entry to select the backend?
I'm really interested in this work, as BTRFS relocation/balance will have
potential benefits, but we need to get it right.
Agree. We will post a V3 with emulation and addressing other comments.
We can take it from there. If you have comments on V2, please send them
our way and we will take them in.
