[Samba] Should Oplocks be enable Pershare

[mallapadi niranjan]

Hi all

We have a samba pdc (samba 3.0.21c with Openldap 2.3.19) and
another Linux system as Samba Domain Member server(Samba 3.0.21c).
All my windows Clients are windows 2k Professional and Win XP .
My query is
1Q) Should oplocks and Level2 oplocks be declared per share declaration  in
smb.conf
or if it declared in global section of smb.conf is it enough?
2Q) Is there any enhancement of performance if the oplocks and level2
oplocks are declared in global section and also in the share
declaration

Regards
Niranjan