Greetings
Has libvirt dedicated page cache area for guest ?
If not - what is the difference between
cache='none' and cache='directsync' ?>The optional cache attribute controls the cache mechanism, possible
>values are "default", "none", "writethrough",
"writeback", "directsync" >(like
"writethrough", but it bypasses the host page cache) and
>"unsafe" (host may cache all disk io, and sync requests from guest
>are ignored).
As I understand 'unsafe' - always remove flags O_SYNC|O_DIRECT fron
guest level.
What about other cache options - how it work ?
Would be glad see any schema or description, if You have.
b.r.
Maxim Kozin
