Messages in this thread | | | Date | Tue, 8 Dec 2020 13:22:48 +0100 | From | Javier González <> | Subject | Re: [RFC PATCH v2 0/2] add simple copy support |
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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.
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