Solaris Tunable Parameters Reference Manual

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  Preface

  1.  Overview of Solaris System Tuning

  2.  Solaris Kernel Tunables

Where to Find Tunable Parameter Information

General Parameters

physmem

lwp_default_stksize

logevent_max_q_sz

fsflush and Related Tunables

fsflush

tune_t_fsflushr

autoup

dopageflush

doiflush

Process Sizing Tunables

maxusers

reserved_procs

pidmax

max_nprocs

maxuprc

Paging-Related Tunables

lotsfree

desfree

minfree

throttlefree

pageout_reserve

pages_pp_maximum

tune_t_minarmem

fastscan

slowscan

min_percent_cpu

handspreadpages

pages_before_pager

maxpgio

Swapping-Related Variables

swapfs_reserve

swapfs_minfree

General Kernel Variables

noexec_user_stack

Kernel Memory Allocator

kmem_flags

General Driver

moddebug

General I/O

maxphys

rlim_fd_max

rlim_fd_cur

General File System

ncsize

rstchown

segkpsize

dnlc_dir_enable

dnlc_dir_min_size

dnlc_dir_max_size

UFS

bufhwm

ndquot

ufs_ninode

ufs:ufs_WRITES

ufs:ufs_LW and ufs:ufs_HW

TMPFS

tmpfs:tmpfs_maxkmem

tmpfs:tmpfs_minfree

Pseudo Terminals

pt_cnt

pt_pctofmem

pt_max_pty

Streams

nstrpush

strmsgsz

strctlsz

System V Message Queues

msgsys:msginfo_msgmax

msgsys:msginfo_msgmnb

msgsys:msginfo_msgmni

msgsys:msginfo_msgtql

System V Semaphores

semsys:seminfo_semmni

semsys:seminfo_semmns

semsys:seminfo_semvmx

semsys:seminfo_semmsl

semsys:seminfo_semopm

semsys:seminfo_semmnu

semsys:seminfo_semume

semsys:seminfo_semaem

System V Shared Memory

shmsys:shminfo_shmmax

shmsys:shminfo_shmmni

segspt_minfree

Scheduling

rechoose_interval

Timers

hires_tick

timer_max

Sun4u Specific

consistent_coloring

Solaris Volume Manager Parameters

md_mirror:md_resync_bufsz

  3.  NFS Tunable Parameters

  4.  TCP/IP Tunable Parameters

  5.  Network Cache and Accelerator (NCA) Tunable Parameters

  6.  System Facility Parameters

  A.  Tunable Parameter Change History

  B.  Revision History for this Manual

  Index