Is it normal when physical Memory running high all time ?

Dear Expert
We have server production running apex application.
Data & Fact
OS : windows server 2008 R2 standard (64 bit)
intel xeon
RAM : 4 GB
installed product:
DB : Oracle 11g R2
APEX : APEX 4.1
listener : OHS
on resource monitor
Used Physical Memory running high all time (80 %).
is it normal?
Regard
Lutfi Hedir

Lutfi.Hedir wrote:
Hi Earl thanks for respond
My curiosity is why used memory high all time for 24 hour not on peak hour only?, when i stop db console service it drop litle bit :D.
My suspicion is that Oracle is grabbing as much memory as it can on startup and it's simply holding on to it. Memory usage is generally not going to go down from some baseline once an application has been started. It's not like the CPU utilization, which can fluctuate quite a bit for any one application. Memory usage will likely increase if you run some memory intensive operations, but doubtful that you will ever see it go down much.
Earl

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Hi,
CrazyAnie wrote:
Hi,
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Because without virtual memory, managing computer RAM is a royal pain in the ...
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host                   : patchy
release                : 2.6.18-128.2.1.4.25.el5xen
version                : #1 SMP Tue Mar 23 12:43:27 EDT 2010
machine                : i686
nr_cpus                : 4
nr_nodes               : 1
cores_per_socket       : 1
threads_per_core       : 2
cpu_mhz                : 2992
hw_caps                : bfebfbff:20100800:00000000:00000180:0000641d:00000000:00000000:00000000
virt_caps              :
total_memory           : 4095
free_memory            : 1418
node_to_cpu            : node0:0-3
node_to_memory         : node0:1418
xen_major              : 3
xen_minor              : 4
xen_extra              : .0
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p
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xen_pagesize           : 4096
platform_params        : virt_start=0xff800000
xen_changeset          : unavailable
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\ \/ /___ _ __   |___ /| || | / _ \
\ // _ \ \047_ \    |_ \| || |_| | | |
/ \ __/ | | | ___) |__   _| |_| |
/_/\_\___|_| |_| |____(_) |_|(_)___/
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(XEN) 0000000000100000 - 00000000dffc0000 (usable)
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(XEN) 00000000fee00000 - 00000000fee10000 (reserved)
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13_OVM_10g_1                                 1 2048     2     -b----     33.6
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Start - /OVS/running_pool/19_10g_clone_1
PowerOn Failed : Result - failed:errcode=20000, errmsg=No enough memory to run vm(/OVS/running_pool/19_10g_clone_1), required memory=2048.
StackTrace:
File "/opt/ovs-agent-2.3/OVSSiteVM.py", line 124, in start_vm
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Edited by: Christoph on Jan 5, 2011 8:39 AM

Is it normal when physical Memory running high all time ?

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