Hi Vijay? thank you for post this message, i will try it soon -kane ? 2013-9-13???9:21?Vijay Bellur <vbellur at redhat.com> ??? > 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 >