How to make a guest machine running more fast ?
CONFIG_BLK_DEV_UBD_SYNC =Y or CONFIG_BLK_DEV_UBD_SYNC=N
What´s the best for a uml provider ?
Itamar Reis Peixoto
+55 (34) 3238 3845
e-mail : itamar@...
On Tuesday 12 April 2005 16:37, itamar wrote:
> How to make a guest machine running more fast ?
> CONFIG_BLK_DEV_UBD_SYNC =3DY or CONFIG_BLK_DEV_UBD_SYNC=3DN
The second is surely faster but less safe.
> What=B4s the best for a uml provider ?
=46or recent (IIRC >=3D 2.6.9, at least) the difference of performance is=20
acceptable; however, in case of a host crash (a guest crash shouldn't creat=
a problem), with the second one you would get big problems on guest reboot=
(especially if you use journaled filesystems, especially like reiserfs,=20
because they want to be able to force datas out on the disk).
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729