提高samba的传输速度[转载]

来自：TDBlog


修改配置文件提速buffalo LS-WVL的samba共享速度
文件：/etc/init.d/smb.sh
找到start函数,在configure下添加一行addconfigforspeed

start()
{
        configure
        addconfigforspeed
...
}

添加函数定义如下：

addconfigforspeed()
{
	sed '12 a    #kakashi5240 add start' -i /etc/samba/smb.conf
	sed '13 a    read size = 65536' -i /etc/samba/smb.conf
	sed '14 a    read prediction = yes' -i /etc/samba/smb.conf
	sed '15 a    socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072' -i /etc/samba/smb.conf
	sed '16 a    write raw = yes' -i /etc/samba/smb.conf
	sed '17 a    read raw = yes' -i /etc/samba/smb.conf
	sed '18 a    aio read size = 16384' -i /etc/samba/smb.conf
	sed '19 a    aio write size = 16384' -i /etc/samba/smb.conf
	sed '20 a    write cache size = 262144' -i /etc/samba/smb.conf
	sed '21 a    getwd cache = yes' -i /etc/samba/smb.conf
	sed '22 a    large readwrite = yes' -i /etc/samba/smb.conf
	sed '23 a    #kakashi5240 add end' -i /etc/samba/smb.conf
	sed '24 a' -i /etc/samba/smb.conf
}

重启：

$/etc/init.d/smb.sh restart

       其实这样做的目的在于指定异步读写的块大小/读缓存设置/写缓存设置/大文件读写优化等设置，（LS-WVL默认值已经够用，纯属折腾哈）目前我用千兆交换机把nas和几台电脑连接起来发现读速度已经达到80-90MB/s ，写已经达到50-60MB/s，已经达到了buffalo的标称值了，如果能再提高个6%-8%，其实是锦上添花而已，纯粹技术研究。
 
另一方法：
    文件：smb.conf
smb.conf文件修改后，速度可以提升不少，不过不同NAS支持的环境差异，配置文件有所不同，需要调整个别参数。

use sendfile=yes
read size = 65536
read prediction = yes
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072
write raw = yes
read raw = yes
max xmit=65535
aio read size = 16384
aio write size = 16384

最好在smb.conf加上几个参数

max connections = 0
deadtime = 0
max log size = 500
security = share
password server = *