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Oracle Solaris Tunable Parameters Reference Manual Oracle Solaris 11 Information Library |
1. Overview of Oracle Solaris System Tuning
Tuning an Oracle Solaris System
Tuning Format of Tunable Parameters Descriptions
Tuning the Oracle Solaris Kernel
Example--Setting a Parameter in /etc/system
Recovering From an Incorrect Value
Example-Using mdb to Display Information
Special Oracle Solaris tune and var Structures
Viewing Oracle Solaris System Configuration Information
2. Oracle Solaris Kernel Tunable Parameters
4. Internet Protocol Suite Tunable Parameters
5. Network Cache and Accelerator Tunable Parameters
A. Tunable Parameters Change History
This section describes new or changed parameters in the Oracle Solaris 11 release.
Oracle Solaris 11: The rstchown parameter that was previously set in the /etc/system file is obsolete. If you set this parameter in the /etc/system file, the following error message is displayed:
sorry, variable 'rstchown' is not defined in the 'kernel'
This parameter has been replaced by the ZFS rstchown file system property and a general file system mount option. For more information, see Oracle Solaris Administration: ZFS File Systems and mount(1M).
Oracle Solaris 11: The following system configuration parameters that were previously configured by editing files in the /etc/default directory have changed to SMF services:
autofs
init
kbd
nfs
For information about changing SMF service properties, see Chapter 6, System Facility Parameters.
Oracle Solaris 11: The ipadm command replaces the ndd command for setting network properties. TCP, IP, UDP, and SCTP properties are set as follows:
ipadm set-prop -p parameter ip|ipv4|ipv6|tcp|udp|sctp
In addition, most of the network tunable names have changed slightly to correlate better with the ipadm format.
For more information, see Overview of Tuning IP Suite Parameters.
Oracle Solaris 11: This release includes the disp_rechoose_interval parameter. For more information, see disp_rechoose_interval.
Oracle Solaris 11: This release includes the ngroups_max parameter description. For more information, see ngroups_max.
Oracle Solaris 11: This release includes the zfs_arc_min and zfs_arc_max parameter descriptions. For more information, see zfs_arc_min and zfs_arc_max.
For additional information about tuning ZFS file systems, see the following site:
http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide
Oracle Solaris 11: This release includes several igb and ixgbe network driver parameters. For more information, see igb Parameters and ixgbe Parameters.
Oracle Solaris 11: This release includes the ddi_msix_alloc_limit parameter that can be used to increase the number of MSI-X interrupts that a device instance can allocate. For more information, see ddi_msix_alloc_limit.
Oracle Solaris 11: This release includes the kmem_stackinfo parameter, which can be enabled to monitor kernel thread stack usage. For more information, see kmem_stackinfo.
Oracle Solaris 11: Memory locality group parameters are provided in this release. For more information about these parameters, see Locality Group Parameters.