On Thu, 2012-03-29 at 08:55 +0900, Namjae Jeon wrote:
> Hi. Trond.
>
> Normally goto statement is not recommended(pipeline and branch
> prediction) it is only recommended as a last resort if there is no
> method to escape this loop.
????????????? A goto is an unconditional branch; there is no further
branch prediction involved once once the processor gets the value of
'err' in that switch statement correct. Exactly how would adding an
extra set+test of exception.retry after the switch() help the branch
predictor in this situation?
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
��.n��������+%������w��{.n�����{��w��� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
