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Full Discussion: HP-UX memory usage allocation
Operating Systems HP-UX HP-UX memory usage allocation Post 302116352 by mr_manny on Thursday 3rd of May 2007 11:40:46 AM
Old 05-03-2007
have you tried ipcs?

# ipcs -mop
IPC status from /dev/kmem as of Thu May 3 08:38:31 2007
T ID KEY MODE OWNER GROUP NATTCH CPID LPID
Shared Memory:
m 0 0x411829da --rw-rw-rw- root root 0 735 735
m 1 0x4e0c0002 --rw-rw-rw- root root 1 735 735
m 2 0x4124028d --rw-rw-rw- root root 1 735 747
m 19971 0x0c6629c9 --rw-r----- root root 2 1514 1512
m 4 0x06347849 --rw-rw-rw- root root 1 1514 1539
m 1541 0xffffffff --rw-r--rw- root root 0 1512 1512
m 45062 0x5e140024 --rw------- root root 1 1759 1759
m 519 0x30dfc4ec --rw-r----- oracle dba 61 5420 7453
m 8 0x9273c4c0 --rw-r----- oracle dba 58 5560 7462



go get kmeminfo from HP Smilie

# ./kmeminfo
tool: kmeminfo 7.02
unix: /stand/vmunix 11.11 64bit PA2.0 on "my.box.com"
core: /dev/kmem live
link: Wed Feb 1 07:45:48 PST 2006
boot: Sat Apr 28 17:36:56 2007
time: Thu May 3 08:37:33 2007
nbpg: 4096 bytes


----------------------------------------------------------------------
Physical memory usage summary (in page/byte/percent):

Physical memory = 5242880 20.0g 100%
Free memory = 537474 2.1g 10%
User processes = 4008776 15.3g 76% details with -user
System = 683688 2.6g 13%
Kernel = 421544 1.6g 8% kernel text and data
Dynamic Arenas = 96880 378.4m 2% details with -arena
M_TEMP = 43860 171.3m 1%
VFD_BT_NODE = 15210 59.4m 0%
M_SPINLOCK = 7245 28.3m 0%
KMEM_ALLOC = 5432 21.2m 0%
ALLOCB_MBLK_LM = 2813 11.0m 0%
Other arenas = 22320 87.2m 0% details with -arena
Super page pool = 7021 27.4m 0% details with -kas
Static Tables = 263990 1.0g 5% details with -static
pfdat = 119481 466.7m 2%
htbl2_0 = 65536 256.0m 1%
nbuf = 21024 82.1m 0% bufcache headers
bufhash = 20480 80.0m 0% bufcache hash headers
pfn_to_virt = 19913 77.8m 0%
Other tables = 17555 68.6m 0% details with -static
Buffer cache = 262144 1.0g 5% details with -bufcache
UFC file mrg = 0 0.0b 0%
UFC meta mrg = 0 0.0b 0%
#

current top info:

System: mybox Thu May 3 08:39:30 2007
Load averages: 0.09, 0.07, 0.07
250 processes: 210 sleeping, 39 running
Cpu states:
CPU LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
0 0.12 5.9% 0.0% 0.0% 94.1% 0.0% 0.0% 0.0% 0.0%
1 0.11 13.9% 0.0% 5.9% 80.2% 0.0% 0.0% 0.0% 0.0%
2 0.02 18.8% 0.0% 1.0% 80.2% 0.0% 0.0% 0.0% 0.0%
3 0.11 4.0% 0.0% 2.0% 94.1% 0.0% 0.0% 0.0% 0.0%
4 0.06 3.0% 0.0% 1.0% 96.0% 0.0% 0.0% 0.0% 0.0%
5 0.16 8.9% 0.0% 5.9% 85.1% 0.0% 0.0% 0.0% 0.0%
6 0.06 3.0% 0.0% 2.0% 95.0% 0.0% 0.0% 0.0% 0.0%
7 0.10 7.9% 0.0% 2.0% 90.1% 0.0% 0.0% 0.0% 0.0%
--- ---- ----- ----- ----- ----- ----- ----- ----- -----
avg 0.09 7.8% 0.0% 2.9% 89.2% 0.0% 0.0% 0.0% 0.0%

Memory: 16015140K (13469144K) real, 24703812K (22087940K) virtual, 2180160K free Page# 1/6
 

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LEARN ABOUT FREEBSD

pae

PAE(4)							 BSD/i386 Kernel Interfaces Manual						    PAE(4)

NAME

     PAE -- Physical Address Extensions

SYNOPSIS

     options PAE

DESCRIPTION

     The PAE option provides support for the physical address extensions capability of the Intel Pentium Pro and above CPUs, and allows for up to
     64 gigabytes of memory to be used in systems capable of supporting it.  With the PAE option, memory above 4 gigabytes is simply added to the
     general page pool.  The system makes no distinction between memory above or below 4 gigabytes, and no specific facility is provided for a
     process or the kernel to access more memory than they would otherwise be able to access, through a sliding window or otherwise.

SEE ALSO

     smp(4), tuning(7), config(8), bus_dma(9)

HISTORY

     The PAE option first appeared in FreeBSD 4.9 and FreeBSD 5.1.

AUTHORS

     Jake Burkholder <jake@FreeBSD.org>

BUGS

     Since KLD modules are not compiled with the same options headers that the kernel is compiled with, they must not be loaded into a kernel com-
     piled with the PAE option.

     Many devices or their device drivers are not capable of direct memory access to physical addresses above 4 gigabytes.  In order to make use
     of direct memory access IO in a system with more than 4 gigabytes of memory when the PAE option is used, these drivers must use a facility
     for remapping or substituting physical memory which is not accessible to the device.  One such facility is provided by the busdma interface.
     Device drivers which do not account for such devices will not work reliably in a system with more than 4 gigabytes of memory when the PAE
     option is used, and may cause data corruption.  The PAE kernel configuration file includes the PAE option, and explicitly excludes all device
     drivers which are known to not work or have not been tested in a system with the PAE option and more than 4 gigabytes of memory.

     Many parameters which determine how memory is used in the kernel are based on the amount of physical memory.  The formulas used to determine
     the values of these parameters for specific memory configurations may not take into account the fact there may be more than 4 gigabytes of
     memory, and may not scale well to these memory configurations.  In particular, it may be necessary to increase the amount of virtual address
     space available to the kernel, or to reduce the amount of a specific resource that is heavily used, in order to avoid running out of virtual
     address space.  The KVA_PAGES option may be used to increase the kernel virtual address space, and the kern.maxvnodes sysctl(8) may be used
     to decrease the number of vnodes allowed, an example of a resource that the kernel is likely to overallocate in large memory configurations.
     For optimal performance and stability it may be necessary to consult the tuning(7) manual page, and make adjustments to the parameters docu-
     mented there.

BSD
								   April 8, 2003							       BSD
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