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

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