On 2022-03-06, Alceu Rodrigues de Freitas Junior <glasswal...@yahoo.com.br> wrote: > > > Em 05/03/2022 15:29, Janne Johansson escreveu: > >> It can work the other way around also, using free RAM on the >> hypervisor to create >> a larger write cache than the VM itself can have. > > That would improve performance, but at the cost of losing data. > > Not sure if already suggested, but depending on the nature of data (ETL, > for example, would be acceptable), using MFS as file system would have > much better performance.
Don't over-estimate the capabilities of MFS, it is not particularly fast. Ignoring VM (and I don't know how things behave there) but on physical hardware I often see faster writes to even just plain SATA SSDs than to MFS. -- Please keep replies on the mailing list.
