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Oracle Solaris Tunable Parameters Reference Manual |
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 9 Releases)
ddi_msix_alloc_limit (Solaris 10 Release and OpenSolaris 2009.06 Release)
General I/O Tunable Parameters
rlim_fd_max (Solaris 8 Release)
General Kernel and Memory Parameters
zfs_arc_min (Solaris 10 Releases)
zfs_arc_max (Solaris 10 Releases)
noexec_user_stack (Solaris 9 Releases)
lwp_default_stksize (Solaris 9 Releases)
noexec_user_stack (Solaris 2.6, 7, and 8 Releases)
segkpsize (Solaris 9 12/02 Release)
fsflush and Related Parameters
dopageflush (Solaris 10 Releases)
Paging-Related Tunable Parameters
pages_pp_maximum (Solaris Releases Prior to Solaris 9 Releases)
General File System Parameters
ncsize (Solaris 9 and Previous Releases)
tmpfs:tmpfs_maxkmem (Solaris 10 Releases)
tmpfs:tmpfs_minfree (Solaris 8 Releases)
sun4u or sun4v Specific Parameters (Solaris 10 Releases)
default_tsb_size (Solaris 10 Releases)
enable_tsb_rss_sizing (Solaris 10 Releases)
tsb_rss_factor (Solaris 10 Releases)
nfs:nfs_write_error_interval (Solaris 9 8/03)
nfs:nfs_write_error_to_cons_only (Solaris 9 8/03)
nfs:nfs_disable_rddir_cache (Solaris 9 8/03)
nfs:nfs3_max_transfer_size (Solaris 9 8/03)
tcp_local_dack_interval (Solaris 10 Releases)
ip_forward_src_routed and ip6_forward_src_routed (Solaris 10 Release)
ip_multidata_outbound (Solaris 10 Release)
ip_multidata_outbound (Solaris 9 Release)
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 Release)
tcp_conn_hash_size (Solaris 9 Releases)
tcp_wscale_always (Solaris 9 Releases)
ipc_tcp_conn_hash_size (Solaris 9 Releases)
tcp_compression_enabled (Solaris 9 Releases)
ip_forwarding and ip6_forwarding (Solaris 9 Releases)
xxx:ip_forwarding (Solaris 9 Releases)
tcp_conn_req_max_q0 (Solaris 8 Release)
udp_xmit_hiwat (Solaris 9 Releases)
udp_recv_hiwat (Solaris 9 Releases)
udp_max_buf (Solaris 9 Releases)
Parameters That Are Obsolete or Have Been Removed
cachefree (Solaris 8 Releases)
priority_paging (Solaris 8 Releases)
System V Message Queue Parameters
msgsys:msginfo_msgmni (Solaris 9 Releases)
msgsys:msginfo_msgtql (Solaris 9 Releases)
msgsys:msginfo_msgmnb (Solaris 9 Releases)
msgsys:msginfo_msgssz (Solaris 9 Releases)
msgsys:msginfo_msgmap (Solaris 9 Releases)
msgsys:msginfo_msgseg (Solaris 9 Releases)
msgsys:msginfo_msgmax (Solaris 9 Releases)
semsys:seminfo_semmni (Solaris 9 Releases)
semsys:seminfo_semmsl (Solaris 9 Releases)
semsys:seminfo_semopm (Solaris 9 Releases)
semsys:seminfo_semmns (Solaris 9 Releases)
semsys:seminfo_semmnu (Solaris 9 Releases)
semsys:seminfo_semume (Solaris 9 Releases)
semsys:seminfo_semvmx (Solaris 9 Releases)
semsys:seminfo_semaem (Solaris 9 Releases)
System V Shared Memory Parameters
shmsys:shminfo_shmmni (Solaris 9 Releases)
shmsys:shminfo_shmmax (Solaris 9 Releases)
shmsys:shminfo_shmmin (Solaris 8 Release)
shmsys:shminfo_shmseg (Solaris 8 Release)
This parameter information changed significantly in later Solaris releases. Please see sq_max_size for more information.
The depth of the syncq (number of messages) before a destination streams queue generates a QFULL message.
2 messages
1 to 0 (unlimited)
No
When NCA is running on a system with a lot of memory, increase this parameter to allow drivers to queue more packets of data. If a server is under heavy load, increase this parameter so modules and drivers may process more data without dropping packets or getting backlogged.
Unstable
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