Chapter 9. Tuning the performance of a Samba server
This chapter describes what settings can improve the performance of Samba in certain situations, and which settings can have a negative performance impact.
Samba is set up as a file or print server
9.1. Setting the SMB protocol version
Each new SMB version adds features and improves the performance of the protocol. The recent Windows and Windows Server operating systems always supports the latest protocol version. If Samba also uses the latest protocol version, Windows clients connecting to Samba benefit from the performance improvements. In Samba, the default value of the server max protocol is set to the latest supported stable SMB protocol version.
To always have the latest stable SMB protocol version enabled, do not set the
server max protocol parameter. If you set the parameter manually, you will need to modify the setting with each new version of the SMB protocol, to have the latest protocol version enabled.
The following procedure explains how to use the default value in the
server max protocol parameter.
server max protocolparameter from the
[global]section in the
Reload the Samba configuration
# smbcontrol all reload-config
9.3. Settings that can have a negative performance impact
By default, the kernel in Red Hat Enterprise Linux is tuned for high network performance. For example, the kernel uses an auto-tuning mechanism for buffer sizes. Setting the
socket options parameter in the
/etc/samba/smb.conf file overrides these kernel settings. As a result, setting this parameter decreases the Samba network performance in most cases.
To use the optimized settings from the Kernel, remove the
socket options parameter from the
[global] section in the