Linux memory settings
We installed the suite on a linux server in a managed configuration (AdminServer, soa_server1, bam_server1).
At first we didnot change the memory settings so all three process ran with memory settings:
-Xms512m -Xmx1024m -XX:PermSize=128m -XX:MaxPermSize=512m
With these settings the suite ran OK at first but gradually the performance detoriated.
Using jconsole I looked at the memory consumption of the processes and the soa_server1 was using up all memory while the AdminServer and bam_server1 had plenty of memory.
I changed the memory setting specific to the servers:
AdminServer, bam_server1
-Xms768m -Xmx768m -XX:PermSize=128m -XX:MaxPermSize=256m
soa_server1
-Xms1536m -Xmx1536m -XX:PermSize=128m -XX:MaxPermSize=512m
The process have been running stable upto now.
The server:
OS: oracle enterprise server release 4 update 7
Cpu: 4*E7340 @ 2.4 Ghz
Ram: 8 Gb
Any other experiences with memory settings on linux and/or using a single server setup vs the shared configuration?
Gr,
Gert Jan Kersten
About rebuilding kernel
on linux 7.0 :
1. Try to look at file /usr/src/linux/include/asm/shmparam.h
Update parameters SHMMAX, SHMMIN, SHMMNI, SHMSEG.
SHMMAX is set to 50% of RAM
SHMMIN 1
SHMMNI 100
SHMSEG 10
2. edit file /usr/src/linux/include/linux/sem.h
and set param
SEMMSL 250
SEMOPM 100
SEMVMX 32767
3. After then you must configure kernel, and set modules
and drivers when you need.
>cd /usr/src/linux
>make xconfig
4. Save configure.
5. >cd /usr/src/linux
>make clean
>make dep
>make bzImage
6. Command make bzImage create new kernel in directory
/usr/src/linux/arch/i386/boot
there is file bzImage
7. copy new kernel to /boot directory
8. you must edit /etc/lilo.cfg and add new record for
new kernel.
9. write lilo to disk
>cd /etc
> lilo -c
10. Be shure that you can boot old kernel !!!!!
11. restart.
12. After correct reboot new kernel you can see to the
/proc/sys/kernel/shmmax
there is parameter about max shared memory.
on Linux 7.1
is different file path and name for edit.
/usr/src/linux-2.4/include/linux/sem.h
/usr/src/linux-2.4/include/linux/shm.h
Hi.
Similar Messages
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Hey Good day to all,
please help with this; when installing the Service Control Management Suite Subscriber Manager scms-sm, and at the secound step where you have to determine the system memory settings, there are several attributes to be considered:
the maximum number of the subscribers
with or without qouta manager
number of VSAs used
so, my question is about the memory configuration parameters versus the number of VSAs used, since you must multiply with certain values, set already on a table on the Cisco website, but as shown in the example under the table these values are multiplied to all the attributes except that the example dosn't show the value of the temp-size memory;
so please confirm this to me:
the temporary memory size "temp_size" is not related to the number of VSAs implemented!
this is a screen shot from Cisco website:
thank you in advance for helpingHi Tessitori,
The best way to cache, index and query that amount of data in Coherence is to use a number of stand alone JVMs (i.e. com.tangosol.net.DefaultCacheServer s) to 'manage' the data. Then access (query) that cache from your application servers instances. For an indexing and querying example take a look at this FAQ item
If you would like to discuss this further please email me at [email protected]
Later,
Rob Misek
Tangosol, Inc.
Coherence: Cluster your Work. Work your Cluster. -
No Bios Update for Satellite: L755D-S5204 / Inability to change Memory Settings in Bios
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When you figure that out and if you could possibly help me resolve this problem, please email me because as a computer technician I am really intrigued as to the reason why Toshiba doesn't have a FLASH BIOS UPDATE that will let you change the Memory settings, and Memory Timings!!
Thanks,
Michael Richins
Comptia A+ Computer TechnicianBIOS does not provide such option!
I have no idea what graphic card you have but for example the Sat P850-138 was equipped with an NVIDIA GeForce GT 630M graphic card.
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Hi Guys,
I have installled PI 7.1 and i am looking for ABAP and Java memory settings. I am facing lot of short dump errors on the ABAP side when installing the support packs.
I have restored the image back and now i want to set the memory parameters on both the ABAP and Java before i start patching them again.
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PI7.1 default JVM heap size is 2GB.
You can check your Haep memory available in the Web MMC.
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Select your Java server node, you can check the memory.
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Best Regards,
Michikuni -
Installation of central instance - memory settings
Hi All,
I have a question about the memory settings reg. the ABAP / Java Add-In installation (Central system).
Installation of CI:
When I install the central instance, I provide a value for the Instance Memory Management.
Installation of DI:
In the step where I install the database instance, I provide again a value for Instance Memory.
Q1: The memory value for the Central instance later is visible in the profile for the CI. But where does the DI value go? How could I change it?
Q2: The value for the Java JVM (heap size) - is this value additional to the value of the CI, or part of the CI's memory. So could I set heap size to 2M while the CI's memory is set to 1M?
Any hints are appreciated.
Thx.
KB
System
- Win2K (Win32)
- OracleQ1: The memory value for the Central instance later is visible in the profile for the CI. But where does the DI value go? How could I change it?
--> You can ignore this, there is no INSTANCE memory for your database. If you want to configure the memory settings for your RDBMS software it'll depend on what software it is... For Sql Server it's in the Enterprise Manager in Oracle you can edit the init<SID>.ora file...
Q2: The value for the Java JVM (heap size) - is this value additional to the value of the CI, or part of the CI's memory. So could I set heap size to 2M while the CI's memory is set to 1M?
--> This value is specific to your JVM heap, so it's not additive or related to your CI. -
Passing memory settings from the Node Manager to the Managed Server
All,
I am trying to start a Managed server from the Node Manager. The configuration is as follows:
I have a domain with two managed servers(M1, M2). I could start both of them using the shell scripts without any problems. Both of the servers has custom memory settings -Xms3072m -Xmx3072m -XX:PermSize=256m
to facilitate deployment and effective operation of managed servers (the applications being deployed are kind of large).
Now, I am trying to start the same two servers using Admin Console:
In the admin console: I created a Unix Machine(U1) assigned the managed servers (M1, M2) to U1. I started the Node Manager on U1.
When I try to start a Managed Server from console, the server is starting but the memory settings (-Xms3072m -Xmx3072m -XX:PermSize=256m ) are not passed to the managed server startup, so the application deployment is failing with out of Memory errors. I tried to assign same memory settings to Node manager assuming it will pass on that configuration to the node manager without any luck.
Any help is appreciated.
Thanks
RajStarting Managed Server from Node Manager
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SQL Server Max Memory Settings
Hi,
I'd like to check if SQL Server will consume memory more than the configured MAX Memory settings? And if so when does SQL consume that and how much would it consume.
Regards,
JayHi,
I'd like to check if SQL Server will consume memory more than the configured MAX Memory settings? And if so when does SQL consume that and how much would it consume.
Hi
Can you please tell us what is version and edition of SQL Server here. If it is 2012 its little difficult to reporduce your scenario where SQL Server 2012 will take more than max server memory setting because lots of features which use to take memory
outside buffer pool before SQL 2012 are now changed to take memory from buffer pool. Also quite lot depends on whether system is 32 bit or 64 bit
For SQL Server versions below 2012(not SS2000) you might get lucky with following (taken from
Here)
1. COM Objects
2. SQL Server CLR
3. Memory allocated by Linked Server OLEDB Providers and third party DLL’s loaded in SQL Server process
4. Extended Stored Procedures:
5. Network Packets
6. Memory consumed by memory managers. If the memory request is greater than 8 KB and needs contiguous allocation.
7. Backup
If you heavily use above features you might see SQL Server memory utilization crossing above max server memory setting. Of all above SQLCLR and extended stored procs would be my bet. If you use them heavily you might see what you want to. Extended
stored proc has performance issues so use it on your own risk. Use below query to check SQL server memory utilization( works from SS 2008 and above)
select
(physical_memory_in_use_kb/1024)Memory_usedby_Sqlserver_MB,
(locked_page_allocations_kb/1024 )Locked_pages_used_Sqlserver_MB,
(total_virtual_address_space_kb/1024 )Total_VAS_in_MB,
process_physical_memory_low,
process_virtual_memory_low
from sys. dm_os_process_memory
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it.
My TechNet Wiki Articles -
K8T Neo-FIS2R - 3200+ - Mushkin Level 1 RAM: Optimal Memory Settings
Just got a K8T Neo-FIS2R with a AMD Athlon 64 3200+ with 1g (512MB X
2) Mushkin Level 1 PC3500 RAM as recommended by Anandtech on his High
End System roundup:
www.anandtech.com/guides/showdoc.html?i=2041
I am having a HUGE problems with memory settings in the BIOS.
On AUTO, the memory is only autodected at DDR200, which I found odd.
I them took memory setting in my old hands and things don't seem much
better:
I made these changes:
MEMCLOCK: DDR400
BANK INTERVEAVING: AUTO
BURST LENGTH: 8 BEAT
CL: 2
TRCD: 3
TRAS: 5
TRP: 2
This was unstable at first and bumped the DDR Voltage to 2.7, moved
the sticks to DIMM1 and DIMM3 (instead of DIMM2), and it seems stable,
but not very fast. according to Sandra Scores
Any recommendations for Memory Settings? Why would the MB not
autodecte DDR400 RAM? I am not looking to overlock...just maximize
the CPU and memory I have.
Maybe I just need to get new memory. What is the best memory for this motherboard?
Thanks,
SteveI'm running the same mem (see my sig). Since its PC3500 I attempted to tighten the settings to those you had listed (2,3,2,5). It was not Prime95 torture test stable at even the stock 200 MHz FSB using these settings. Upping the voltage to 2.7 did not increase the stability in my system at these settings. The memory ran perfectly at AUTO settings, but was clocked at 2.5,3,3,8 I believe.
Keep in mind that level 1 is advertised at 2,3,3. My system is 100% stable at 2.7V for me up to 210 MHz FSB at these settings (I haven't tried any faster). My TRAS is set to 6.
Hope this helps a fellow Mushkin user -
Memory settings in WLP JRockit JVM
We are running WLP 10.1 and the memory settings in the startup is as follows
-Xgcprio:pausetime -Xpausetarget=250ms
There is no Xmx and Xms. The box has 8GB available (6GB after OS processes probably)
but the memory reaches it peak at 1GB and thereafter throws an out of memory error.
Is 1GB the default if there is no Xmx setting ?
From the diagnostic command, this is the printed information in oom_diagnostics option
Invoked from diagnosticcommand
Total memory in system: 8397307904 bytes
Available physical memory in system: 6507704320 bytes
-Xmx (maximal heap size) is 1073741824 bytes
Heapsize: 1073741824 bytes
Free heap-memory: 0 bytes
Please let me know why it not using the available 6GB and stops at 1GB?Hi,
For most WebLogic Servers you can set memory sizes using MEM_ARGS variable in the setDomainEnv.cmd file. This file is located in $DOMAIN_HOME/bin/ folder.
I think Weblogic Portal is deployed in WebLogic Server, I hope this helps. -
Hello,
I have to upgrade our bordermanager 3.8 server to 3.9 and therefor will update surfcontrol to the latest version. I think this must be 6.1 ? It's not so easy to find it at the websense page anymore. Has anybody the current memory settings needed for surfcontrol for me ?
Thanks,
Rainerbrunold wrote:
> Gonzalo,
>
> I have several bm server and all with 4GB, but the 800MB preallocation
> size does not work because the db is currently at 1067mb.
>
> I was able to configure the bm server that the largest continuous
> available memory block is 1.246GB and therefor I was able to set the
> preallocation to 1180MB, which is about 10% more then the db currently
> has and then everything loads. The problem might be that we daily run
> the csp_list and in about a month or two that size will be reached
> again.
>
> As I was studying the surfcontrol 6.1 admin guide I found in the ini
> file a option Category and think I can limit the downloads from
> surfcontrol when using it. If that would work, I can copy the 6.1 db
> with about 350MB, configure the required categories and the start the
> update. Hopefully at the end the db will be much smaller. I'm not sure
> about that category option in the ini because the admin guide does not
> have any infromation about it.
>
> So if you would now that it worksor even you know the syntay, it would
> be fine. Currently I try with the category name listed in the admin
> guide and see if that works..
>
> CSPConfig.ini
>> ...
>> Categories=Criminal Skills
>> ...
>> CDB_PREALLOC_SIZE=1180
>> ...
>
> Rainer
>
>
you do not want to know my honest opinion about SF :-).
No idea about the syntax or the ini file, sorry
My honest advise is to move to linkwall.
Gonzalo -
Messaging memory settings can block filetransfer
I have as probebly most businessmen/woman do, save (some)of my SMS-messages to my memorycard for safety. Therefor I.ve ajusted the memory settings of messaging.
This causes an error when I want to use direct filetransfer. THis error block fore instance a lot of software installations. And I don't feel like changing the settings twice if I want to use filetransfer.
is this another bug, or is there a solution?Hi,
In general a good starting point for allocating memory is as follows
OLTP system
20% memory for OS, 80% for Oracle
DSS
30% memory for OS, 70% for Oracle
so at a rough guess I would estimate that you will have available between 22 to 26 GB ram available for oracle. The next thing to think about is the split between SGA and PGA. another rule of thumb is as follows
- For OLTP systems
PGA_AGGREGATE_TARGET = (<Total Physical Memory > * 80%) * 20%
- For DSS systems
PGA_AGGREGATE_TARGET = (<Total Physical Memory > * 80%) * 50%
so this arrives at figures of PGA between 5GB and 13GB.
this then leaves the rest of the memory for SGA_MAX_SIZE and then you can start your database with an SGA_TARGET of something less than SGA_MAX_SIZE. these figures are a guide only.
for tuning the PGA you can look at the following view for a quick estimate of what the system thinks is the best value.
The following select statement can be used to find this information
SELECT round(PGA_TARGET_FOR_ESTIMATE/1024/1024) target_mb,
ESTD_PGA_CACHE_HIT_PERCENTAGE cache_hit_perc,
ESTD_OVERALLOC_COUNT
FROM v$pga_target_advice;
The output of this query might look like the following:
TARGET_MB CACHE_HIT_PERC ESTD_OVERALLOC_COUNT
63 23 367
125 24 30
250 30 3
375 39 0
where the over_allocation is 0 is the figure that the PGA should be set to.
rgds
alan -
hello everyone
I question I hope someone has the answer to.
I had been suffering from lockups when playing medal of honor online. I had my memory settings set to the max, keeping my FSB to 133.
I changed this to:
User/133/SPD
And my problems were solved.
I noticed with this setting that the CAS went back to 2.5.
Yet my memory is rated at CAS 2.0.
I could play games with the maximum memory settings on a LAN or single player with out any problems. Just not on the NET.
Will the memory draw more power at max settings? Will the Network card draw more power when used on the net?
What gives? Any idea's?
Thank youQuote
Originally posted by bikernut
hello everyone
I question I hope someone has the answer to.
I had been suffering from lockups when playing medal of honor online. I had my memory settings set to the max, keeping my FSB to 133.
I changed this to:
User/133/SPD
And my problems were solved.
I noticed with this setting that the CAS went back to 2.5.
Yet my memory is rated at CAS 2.0.
I could play games with the maximum memory settings on a LAN or single player with out any problems. Just not on the NET.
Will the memory draw more power at max settings? Will the Network card draw more power when used on the net?
What gives? Any idea's?
Thank you
have read on technoyard wed site that extreme pc3000 and other types of extreme memory may not be stable with all types of motherboards. no msi motherboards were listed but,that may not mean anything as the site has noted that they do not have listings for all motherboards. i am trying to find out if samsung pc3200 ddr memory will work with msi kt3 ultra2. -
Message Inbox memory Settings remain unchanged!
I have had Nokia 5800 for six months now and have been a regular user of bluetooth for transfering songs. but now what happens is that the Message Inbox Memory Settings do not change and remain fixed at Chone Memory. I change it to E:Memory Card but it takes no affect.
Can someone please help me get out of this? Cleaning the inbox for transfers is a big hassle.I have started using Nokia 2330C from 06-04-2010 I was checking the options of Messages it displays Message storage memory not ready. I have only 0 messages in my inbox. I am set factory default setting broblem solve but after 3 to 4 days message appear again (message storage memory not ready what can I do. Please help to solve this issue.
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What memory settings for Kingmax 3200 MPXC22D-38 512 Mb on a K8T Neo-FSR board?
Hello,
Like many people here, I have been having some major stability problems with this board. I am looking to upgrade my old DDR266 memory to a 512 Mb stick on the MSI approved list and decided to go with the Kingmax MPXC22D-38 DDR400 512 Mb stick. I know that is usually necessary to change the memory settings to achieve stability (which is my main goal) and am looking for recommendations for settings. Any help with what each number means (or which setting it applies to) would also be very helpful.
Also, what would be some good settings for my old DDR266 512Mb memory until the new stuff comes? Memtest86+ reports it at CAS of 2.5-3-3-6, and I am looking mainly for stability.
Thanks for any help in advance.
Cheers,
TomHello,
My stability problems seem to mirror most of the posts here, random freezes that are not reproducible and seem to happen un-related times. It is a complete freeze with no sound, only option is to press reset. I can almost guarantee a freeze when playing a 3d game after about 10-20 minutes.
Would the "Fail safe" settings be the most stable? I saw your post said "for maximum troubles" but thought you meant this would reduce them.
Cheers,
Tom -
K8N neo2 plat. memory settings?
I have the neo2 with an athlon 64 3500+ and 2x512 kingston value RAM and AIW 9800 pro. I scored 2500 on 3DMark05 with the memory settings in BIOS on auto, then I think I changed them to 2.5,3,3,10 and I dropped a bit. Any idea what some good settings are or does the auto feature on this board work really well?
I have the same basic system but with geforce 6800GT graphics card. My 3dMark 2005 scores are around 4800.
The D.O.T on this board is very good. Try it; It's very simple and you can take it up in steps.
Good luck.
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