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Oracle Solaris Tunable Parameters Reference Manual Oracle Solaris 10 8/11 Information Library |
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Oracle Solaris Tunable Parameters Reference Manual Oracle Solaris 10 8/11 Information Library |
1. Overview of Oracle Solaris System Tuning
2. Oracle Solaris Kernel Tunable Parameters
4. Internet Protocol Suite Tunable Parameters
5. Network Cache and Accelerator Tunable Parameters
A. Tunable Parameters Change History
max_nprocs (Solaris 10 Releases)
ddi_msix_alloc_limit (Solaris 10 Releases )
General I/O Tunable Parameters
General Kernel and Memory Parameters
zfs_arc_min (Solaris 10 Releases)
zfs_arc_max (Solaris 10 Releases)
noexec_user_stack (Solaris 10 Releases)
lwp_default_stksize (Solaris 10 Releases)
fsflush and Related Parameters
dopageflush (Solaris 10 Releases)
Paging-Related Tunable Parameters
General File System Parameters
tmpfs:tmpfs_maxkmem (Solaris 10 Releases)
SPARC System Specific Parameters (Solaris 10 Releases)
default_tsb_size (Solaris 10 Releases)
nfs:nfs3_nra (Solaris 10 Releases)
ip_forward_src_routed and ip6_forward_src_routed (Solaris 10 Releases)
ip_multidata_outbound (Solaris 10 Releases)
ip_squeue_fanout (Solaris 10 11/06 Release)
ip_squeue_worker_wait (Solaris 10 11/06 Release)
ip_soft_rings_cnt (Solaris 10 11/06 Release)
ip_squeue_write (Solaris 10 Releases)
tcp_local_dack_interval (Solaris 10 Releases)
[tcp,sctp,udp]_smallest_anon_port and [tcp,sctp,udp]_largest_anon_port (Solaris 10 Releases)
tcp_naglim_def (Solaris 10 Releases)
udp_do_checksum (Solaris 10 Releases)
Parameters That Are Obsolete or Have Been Removed
System V Message Queue Parameters
System V Shared Memory Parameters
The Solaris 10 description section was updated by removing the text “sun4m.”
This parameter is new in the Solaris 10 10/09 release. For more information, see ddi_msix_alloc_limit.
The default value is updated to include sun4v systems. For more information, see maxphys.
This parameter description is newly documented in the Solaris 10 10/09 release. For more information, see zfs_arc_min.
This parameter description is newly documented in the Solaris 10 10/09 release. For more information, see zfs_arc_max.
The Solaris 10 description section was updated by removing the text “and sun4m” and adding the text “64–bit SPARC and AMD64.”
The Solaris 10 description section was updated by adding default and maximum values for AMD64.
The Solaris 10 default value for SPARC platforms was changed to 24,576.
The description was clarified by including that number of physical memory pages are examined.
In the Solaris 10 versions, the range value was incorrectly documented as 1 to 1024. The actual range depends on system architecture and I/O subsystems. For more information, see maxpgio.
In previous Solaris 10 releases, the default value of the ncsize parameter was incorrectly described as follows:
4 x (v.v_proc + maxusers) + 320 / 100
The correct default value is as follows:
(4 x (v.v_proc + maxusers) + 320) + (4 x (v.v_proc + maxusers) + 320 / 100
For more information, see ncsize.
The range description is updated to include sun4v systems. For more information, see tmpfs:tmpfs_maxkmem.
The title of the SPARC System Specific Parameters section was revised in the Solaris 10 8/07 release to include sun4v systems.
The default description has changed. For more information, see default_tsb_size.
The description and default and range values have changed. For more information, see enable_tsb_rss_sizing.
The when to change example text was changed to this:
For example, changing tsb_rss_factor to 256 (effectively, 50%) instead of 384 (effectively, 75%) might help eliminate virtual address conflicts in the TSB in some cases, but will use more kernel memory, particularly on a heavily loaded system.
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