On 09/13/2013 06:10 PM, kane wrote: > Hi > > We use gluster samba vfs test io,but the read performance via vfs is > half of write perfomance, > but via fuse the read and write performance is almost the same. > > this is our smb.conf: > [global] > workgroup = MYGROUP > server string = DCS Samba Server > log file = /var/log/samba/log.vfs > max log size = 500000 > # use sendfile = true > aio read size = 262144 > aio write size = 262144 > aio write behind = true > min receivefile size = 262144 > write cache size = 268435456 > security = user > passdb backend = tdbsam > load printers = yes > cups options = raw > read raw = yes > write raw = yes > max xmit = 262144 > socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=262144 > SO_SNDBUF=262144 > kernel oplocks = no > stat cache = no > > any advises helpful? > This patch has shown improvement in read performance with libgfapi: http://review.gluster.org/#/c/5897/ Would it be possible for you to try this patch and check if it improves performance in your case? -Vijay