Il 12/09/2012 10:25, Tristan Wibberley ha scritto:
> The attached diff adds a commandline option "--cache=" with four modes
> and makes no change to the default behaviour of qemu-nbd:
>
> --cache=writethrough [default, O_DSYNC, very slow, very resilient]
> --cache=off [same as --nocache, O_DIR
Hello qemu devs,
A couple of years ago Stephane Chazelas
(https://launchpad.net/~stephane-chazelas) reported a performance
issue with qemu-nbd due to the lack of an option to switch on
writeback caching (ie a mode like any typical program that just
modifies files of data where resilience is not pr