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11-12-2007 01:37 PM
11-12-2007 01:37 PM
system memory high
Im using HPUX 11.23 on rx8640 and it seems to have very high usage of system memory (taken from glance mem report)
Sys Mem: 18.4gb
User Mem: 70.0gb
Phys Mem: 95.8gb
Buf Cache: 981mb
Free Mem: 6.5gb
The system has 3 cell boards and 1 NPAR running 4 SAP development instances and a standby DR instance that is not actively used.
I've downloaded the kmeminfo tool from WTEC and it broke it down into the following:
----------------------------------------------------------------------
Physical memory usage summary (in page/byte/percent):
Physical memory = 25115380 95.8g 100%
Free memory = 2897600 11.1g 12%
User processes = 18114738 69.1g 72% details with -user
System = 4024111 15.4g 16%
Kernel = 3772958 14.4g 15% kernel text and data
Dynamic Arenas = 2421606 9.2g 10% details with -arena
vx_inode_cache = 771293 2.9g 3%
VFD_BT_NODE = 262990 1.0g 1%
vx_global_pool = 253102 988.7m 1%
vx_buffer_cache = 156992 613.2m 1%
vx_rwsleeplock_ = 146926 573.9m 1%
Other arenas = 830303 3.2g 3% details with -arena
Looks like the kernel itself it taking up most of this space. Is there anyway to reduce the amount used?
Daniel.
Sys Mem: 18.4gb
User Mem: 70.0gb
Phys Mem: 95.8gb
Buf Cache: 981mb
Free Mem: 6.5gb
The system has 3 cell boards and 1 NPAR running 4 SAP development instances and a standby DR instance that is not actively used.
I've downloaded the kmeminfo tool from WTEC and it broke it down into the following:
----------------------------------------------------------------------
Physical memory usage summary (in page/byte/percent):
Physical memory = 25115380 95.8g 100%
Free memory = 2897600 11.1g 12%
User processes = 18114738 69.1g 72% details with -user
System = 4024111 15.4g 16%
Kernel = 3772958 14.4g 15% kernel text and data
Dynamic Arenas = 2421606 9.2g 10% details with -arena
vx_inode_cache = 771293 2.9g 3%
VFD_BT_NODE = 262990 1.0g 1%
vx_global_pool = 253102 988.7m 1%
vx_buffer_cache = 156992 613.2m 1%
vx_rwsleeplock_ = 146926 573.9m 1%
Other arenas = 830303 3.2g 3% details with -arena
Looks like the kernel itself it taking up most of this space. Is there anyway to reduce the amount used?
Daniel.
1 REPLY 1
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11-12-2007 04:42 PM
11-12-2007 04:42 PM
Re: system memory high
Daniel,
Sys Mem: 18.4gb
User Mem: 70.0gb
Phys Mem: 95.8gb
Buf Cache: 981mb
Free Mem: 6.5gb
from your kmeminfo, your system is healthy. 16% is system memory is fine and normal.
You can decrease the vx_ninode to release more memory. See the article below
refer to:-
http://docs.hp.com/en/7779/commonMisconfig.pdf
WK
Problem never ends, you must know how to fix it
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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