Properly and accurately calculating application cache settings

Hello everyone.
We are running Hyperion Planning 11.1.2.1 and one of the dataforms we have set up is quite heavy (it includes several DynamicCalc members with considerable ammount of scripting) and it fails to load from time to time, just saying "Cannot open dataform X. Check logs" and such.
I have tried to increase cache sizing in the databases of the Essbase application (right clic on each database > edit > properties > caches), as well as buffer sizes and commit blocks.
Little by little I have managed to improve performance by modifying the above mentioned caches (it crashes less often), but still I guess it's nuts to infinitely increase caches to make sure it works.
So, my question is: Is there a way to calculate the accurate cache settings for a given application?
My current settings are:
Buffer size: 200 KB
Short buffer size: 200 KB
Index cache setting: 30720 KB
Data file cache setting: 61440 KB
Data cache setting: 51200 KB
Commit blocks: 30000
Do you think these are accurate?
Thanks a lot,
G.S.Feliu

You haven't really provided enough information to be honest, for example are you running a 64bit system?
But that is rhetorical, as usual the first port of call is the DBAG. I don't see why a link should be posted, you must have access to it already if you're administering a production system. That will point out things like that the Data file cache setting is only relevant if Direct I/O is being used and that the index size should be at least as big as the file if memory allows.
Commit blocks....is interesting, personally I have set it to 0 in some projects and seen some improvement but as usual testing is the key.
However their is a performance tuning guide out there that you may find very useful:
https://blogs.oracle.com/pa/entry/epm_11_1_2_epm1
that focuses on the infrastructure a bit more. Bit complicated though and I would thoroughly recommend recording a set of benchmarks before applying any of those changes, and applying said changes one by one or you'll never know what is good and what is not so good.
Learn from the pain others have already endured ;-)
Good Luck
Steve

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== Issue
==
I have a problem with my bookmarks, cookies, history or settings
== Description
==
Hi,
I developed a web application using HTML5-Offline Application Cache mechanism. Inspite of deleting the cache as mentioned in the above steps, Firefox still maintains a copy of the page in it's cache. Also, a serious bug is, even though we delete all temp files used by Firefox, and open the previously cached page, it displays it correctly, but upon refreshing/reloading it again shows the previous version of the page maintained in the cache.
== Troubleshooting information
==
HTML5: Application Caching
.style1 {
font-family: Consolas;
font-size: small;
text-align: left;
margin-left: 80px;
function onCacheChecking(e)
printOutput("CHECKINGContents of the manifest are being checked.", 0);
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document.getElementById("stat").innerHTML += statusMessages;
window.alert(statusMessages);
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document.getElementById("stat").innerHTML += statusMessages;
else if (howToTell == 1) {
window.alert(statusMessages);
catch (IOExceptionOutput) {
window.alert(IOExceptionOutput);
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var ONLY_ALERT = 1;
var BOTH_DOC_ALERT = 2;
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== Firefox version
==
3.6.3
== Operating system
==
Windows XP
== User Agent
==
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729; .NET4.0E)
== Plugins installed
==
*-Shockwave Flash 10.0 r45
*Default Plug-in
*Adobe PDF Plug-In For Firefox and Netscape "9.3.2"
*NPRuntime Script Plug-in Library for Java(TM) Deploy
*The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
*Google Update
*4.0.50524.0
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*Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
*Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers
*Npdsplay dll
*DRM Store Netscape Plugin
*DRM Netscape Network Object
Thanks & Regards,
Kandarpa Chandrasekhar Omkar
Software Engineer
Wipro Technologies
Bangalore.
[email protected]
[email protected]

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Properly and accurately calculating application cache settings

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