11-04-2014
HP-UX server showing high memory utilization
Hi All,
I am using HP-UX 11i v1(B11.11) servers for my work and its memory (RAM) utilization is consistenly 80% for the last one year. Though I am not facing any issues with this high memory utilization I just want to know the below queries:
1) Is it the default behavior of HP-UX systems?
2) Is it the actual utilization value or else anything need to be subtracted to get actual value?
3) If it is a bottle neck what are the commands I need to run or else what are the stats I need to collect to know which is causing the bottleneck?
Thanks in advance.
10 More Discussions You Might Find Interesting
1. AIX
Hi am facing high cpu utilization on my sybase server.
I have P550
Number Of Processors: 4
Processor Clock Speed: 1656 MHz
CPU Type: 64-bit
Kernel Type: 32-bit
LPAR Info: 1 65-D837E
Memory Size: 7840 MB
in topas it shows
Name PID CPU% PgSp Owner
dataserv 565264 ... (1 Reply)
Discussion started by: vjm
1 Replies
2. Shell Programming and Scripting
Hi Unix Gurus i am somewhat new to unix scripting so need your help to
create a script as below.
# This script would find the process consuming memory beyond a certain #limit. if the meemory consumption is more than 100% for a period of 1
# minute for the specific process. the script would... (0 Replies)
Discussion started by: robinforlinux
0 Replies
3. AIX
Hi,
i have two oracle instances running on my server with 7.5G RAM but it is showing almost 99% memory is full as you can see bellow.
# svmon
size inuse free pin virtual
memory 1974272 1954270 20002 336595 1800652
pg space 4194304 ... (7 Replies)
Discussion started by: salmanucit
7 Replies
4. AIX
How to find the memory utilization of AIX server using svmon -G output.
Sample output for svmon -G command from my AIX test server,
size inuse free pin virtual
memory 4014080 3995443 18637 575916 1876393
pg space 1179648 ... (3 Replies)
Discussion started by: maruthu
3 Replies
5. Red Hat
Hello All,
We have a jave server running on both linux and Solaris environments.
On solaris,it consumes only 600-700MB whereas it goes upto 21G in Linux.
I am monitoring the memory consumption through top command.
Is this high memory consumption expected in Linux? (1 Reply)
Discussion started by: prasperl
1 Replies
6. Solaris
Hi Experts,
Our servers running Solaris 10 with SAP Application. The memory utilization always >90%, but the process on SAP is too less even nothing.
Why memory utilization on solaris always looks high?
I have statement about memory on solaris, is this true:
Memory in solaris is used for... (4 Replies)
Discussion started by: edydsuranta
4 Replies
7. Solaris
Hello Guys,
I have one Solaris server with high memory utilization >90%. As per checking, below is the output for memory usage.
bash-3.00# ps -efo pmem,uid,pid,ppid,pcpu,comm | sort -r
%MEM UID PID PPID %CPU COMMAND
1.7 29496 20668 1 0.0 /opt/app/iw-home/tools/java/bin/java
1.5... (1 Reply)
Discussion started by: myrpthidesis
1 Replies
8. Red Hat
Hi All,
I have a java process which is showing high virtual memory utilization in client server. But the same process is showing comparitively lesser virtual memory consumption. I understand that virtual memory shown is not of much importance for the general user in normal condition, my client... (2 Replies)
Discussion started by: mritusmoi
2 Replies
9. Red Hat
Hi,
i am new to linux/RHEL 6.0 and i have two questions.
1) How to get the CPU utilization and Memory Utilization of all Services running currently?
2) How to get the CPU utilization and Memory Utilization of all Applications running currently?
Please help me to find the script.
... (2 Replies)
Discussion started by: nossam
2 Replies
10. UNIX for Advanced & Expert Users
Hi Fellas,
Not sure how I can dig in even further but we notice that one of our DB servers is showing high Sys% CPU usage even though when I execute the following command :
I can see that postgres is the only one using the CPU. So if anyone can advise me what would be the best way to... (3 Replies)
Discussion started by: arizah
3 Replies
lora(7) Miscellaneous Information Manual lora(7)
NAME
lora - Locality-Optimized Resource Alignment (LORA) framework
DESCRIPTION
an acronym for Locality-Optimized Resource Alignment, is a framework for exploiting the locality domains in HP Non-Uniform Memory Architec-
ture (NUMA) servers to improve performance or to reduce cost. On NUMA servers, a locality domain can consist of a related collection of
processors, memory, and peripheral resources. All processors in a given locality domain will have equal or close to equal latency to any
memory.
LORA consists of a set of configuration rules, commands and tools to simplify the configuration process, and a new HP-UX kernel mode. The
two HP-UX modes are called LORA mode and SMP (Symmetric Multiprocessor) mode. SMP mode is characterized by balanced utilization of all
system processing resources, although the scheduler does account for system topology in processor scheduling decisions.
In LORA mode, HP-UX attempts to align the processing resources executing an application within the minimal set of locality domains. This
alignment results in improved application performance, or, alternatively, comparable performance with fewer processing resources.
The use of LORA is recommended for and is generally beneficial to all workloads that exhibit locality of memory reference. The exception
is technical applications that operate on extremely large data sets. The use of LORA requires the installation of a set of patches docu-
mented in the HP-UX 11i Version 3 September 2009 Release Notes.
The command can be used to establish server configurations that conform to the LORA rules.
The command can be used to reestablish good resource alignment if it has been disrupted by a major workload transition or platform recon-
figuration event.
The kernel tunable parameter can be used to control the HP-UX mode.
The kernel tunable parameter can be used to control the LORA memory allocation policies.
The kernel tunable parameter can be used to control the LORA process launch policies.
The tuning recommendations for LORA are as follows:(1) Leave the parameter at its default value of 0.(2) Leave the parameter at its default value of 0.(3) Leave the parameter at its default value of 1.(4) Apply the Server-Tunables product from the Tune-N-Tools bundle.
AUTHOR
was developed by HP.
SEE ALSO
loratune(1M), parconfig(1M), numa_mode(5), numa_policy(5), numa_sched_launch(5).
a detailed white paper is available at
lora(7)