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Full Discussion: System performance
Operating Systems Solaris System performance Post 302745891 by jim mcnamara on Tuesday 18th of December 2012 10:28:06 AM
Old 12-18-2012
What you are seeing is most likely file system caching. Solaris considers unused memory a waste, so it parks (caches) data read from files or written to files in memory because it improves performance. The kernel will release file caches anytime there is a need for more memory.

Code:
Kernel 358022 2797 9%
ZFS File Data 2427072 18961 59%
Anon 1096938 8569 27%
Exec and libs 12020 93 0%
Page cache 73859 577 2%
Free (cachelist) 52250 408 1%
Free (freelist) 81544 637 2%
Total 4101705 32044
Physical 4070935 31804


Last edited by jim mcnamara; 12-18-2012 at 11:36 AM..
 

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vxfs_ifree_timelag(5)						File Formats Manual					     vxfs_ifree_timelag(5)

NAME
vxfs_ifree_timelag - VxFS inode free time lag (specifies the minimum time to be spent on a freelist) SYNOPSIS
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 speci- fied amount of time. The tunable specifies the minimum amount of time should spend on a freelist before its memory space is freed. The time is specified in seconds. is a dynamic tunable. Any changes to take effect immediately. EXAMPLES
Change the value of to 2400 seconds: WARNING
Incorrect tuning of may adversely affect system performance. All HP-UX kernel tunable parameters are release specific. This parameter may be removed or its meaning may change in the future releases of HP-UX. Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation, some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun- able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was factory installed on your system, see at SEE ALSO
kctune(1M), vx_maxlink(5), vx_ninode(5), vxfs_bc_bufhwm(5). Tunable Kernel Parameters vxfs_ifree_timelag(5)
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