"Michael S. Tsirkin" <[email protected]> wrote: > On Thu, Mar 21, 2013 at 06:27:42PM +0200, Orit Wasserman wrote: >> On 03/21/2013 06:16 PM, Michael S. Tsirkin wrote: >> > On Thu, Mar 21, 2013 at 06:05:40PM +0200, Orit Wasserman wrote: >> >> This way we send one big buffer instead of many small ones >> >> >> >> Signed-off-by: Orit Wasserman <[email protected]> >> > >> > Why does this happen BTW? >> >> It happens in the last phase when we send the device state that >> consists of a lot >> bytes and int field that are written using qemu_put_byte/be16/... >> > > Confused I thought device_state does not use _nocopy? > My idea of using vmsplice relies exactly on this: > we can not splice device state ...
As it is today, I am not sure that we can use vmsplice() because we are sending: <header> <page> <header> <page> <header> <page> We can optimize at some pount to write a bigger/different header and sent a bunch of pages together, but just now we don't have that code. Later, Juan.
