HP-UX Reference (11i v2 04/09) - 5 Miscellaneous Topics (vol 9)

v
vxfs_ifree_timelag(5) vxfs_ifree_timelag(5)
(Tunable Kernel Parameters)
NAME
vxfs_ifree_timelag - VxFS inode free time lag (specifies the minimum time to be spent on a freelist)
SYNOPSIS
/usr/bin/kctune -s vxfs_ifree_timelag={value}
VALUE
Specify an integer value.
Minimum
None
Maximum
None
Default
0
DESCRIPTION
In VxFS, the unused inodes are put on a freelist. The memory space for this unused inode is freed if it
stays on the freelist for a specified amount of time. The
vxfs_ifree_timelag
tunable specifies the
minimum amount of time should spend on a freelist before its memory space is freed. The time is
specified in seconds.
vxfs_ifree_timelag
is a dynamic tunable. Any changes to vxfs_ifree_timelag take effect
immediately.
EXAMPLES
Change the value of
vxfs_ifree_timelag
to 2400 seconds:
# kctune -s vxfs_ifree_timelag=2400
WARNING
Incorrect tuning of vxfs_ifree_timelag
may adversely affect system performance.
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or its mean-
ing may change in the future releases of HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parame-
ter values. After installation, some tunable parameters may no longer be at the default or recommended
values. For information about the effects of installation on tunable values, consult the documentation for
the kernel software being installed. For information about optional kernel software that was factory
installed on your system, see HP-UX Release Notes at
http://docs.hp.com
.
SEE ALSO
kctune(1M), vx_maxlink(5), vx_ninode(5), vxfs_bc_bufhwm(5).
Section 5−−402 Hewlett-Packard Company − 1 − HP-UX 11i Version 2: September 2004