Application Performance with DBMS_APPLICATION_INFO

Hi everyone,
Does anybody have any idea how the use of DBMS_APPLICATION_INFO affects application performance?
Or should DBMS_APPLICATION_INFO only be used for test and development environments?
I'm looking at the option of using this package alongside the SYS_CONTEXT function to maintain application security and audit trails in a production environment.

The call itself is pretty cheap. If you are calling it from a middle tier, though, it may increase the "chatter" generated by the application. If you're generating an extra packet every second to make these calls, there could be an issue.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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ANN: Learn How to Enhance J2EE Application Performance with ESI

OTN's newly enhanced Virtual Shopping Mall application illustrates how ESI technology can improve J2EE 1.3 application performance and availability.
http://otn.oracle.com/sample_code/products/ias/web_cache/index.html
Cheers,
-Srikanth

This solution does not seem to work if it is CDSSO.

Application performance with "-mt" option

I am seeing an improved performance when my application is compiled with "-mt". But there is something strange that my program don't use thread features. The same program compiled without "-mt" slower 10%. My program generate 10 million integers and sort the values using quick sort algorithm. (The sorting algorithm borrowed from free BSD's qsort.c)
compiler: Workshop Compiler 4.2
OS: SunOS 5.6
system: sun4u sparc SUNW,Ultra-1
$ CC -O a.C # normal compilation
$ /bin/time a.out
real: 1:18.3
user: 1:16.3
sys : 0.5
$ CC -O -mt a.C # compile with "-mt"
$ /bin/time a.out
real: 1:10.2
user: 1.08.3
sys : 0.5
a.C program don't use system call, memory allocation, I/O operation, multi-thread. It simply compare & move integers and use recursion.
What happen if I use "-mt" option with non-threaded application ?

The call itself is pretty cheap. If you are calling it from a middle tier, though, it may increase the "chatter" generated by the application. If you're generating an extra packet every second to make these calls, there could be an issue.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

Application performance with GPU?

For example, does the GPU make a difference for the more 2D-based applications like: Photoshop, Final Cut Pro HD, Aperture, Shake, etc?
If those programs arn't terribly GPU dependent, then the MacBook is a perfect machine for me.
Thanks for any and all help.

Does Aperture function differently than Photoshop?
Yes, Aperture is different both in form and in function to Photoshop. They should in fact complement rather than compete with each other.
Photoshop runs just fine on the Macbook
While this can sound a bit ratty and snotty… what does that have to do with anything?
I also though photo programs didn't really use the GPU but the CPU instead. Is this wrong?
Yes, it is a very wrong assumption to make.
Aperture has GPU requirements that the neither the MacBook, nor Mac mini, can fulfil with the integrated GMA950. Why this is the case, I can only presume it's the way it uses Core Image but that's only guessing. While Aperture will in fact work you cannot use Apple's installer to install it on either of these machines.
If Aperture is extremely important to you and your workflow then you might want to rethink having a MacBook. Just like I wrote to the OP, the MacBook is not suited to those list of products.

Web dnypro Application performance

I am interested in comparison of performance of 2 web dynpro applications .
I have already gone through the following blog :
/people/bertram.ganz/blog/2006/11/21/analyzing-web-dynpro-java-application-performance-with-a-simple-url-parameter
Is there any method or tool other than this by which i can compare the performance of two web Dyn applications in terms of response time or some graphical interpretaions .

Hi Purav,
Please go through this Link,
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/bb/fdc4402418742ae10000000a155106/frameset.htm">Measuring Performance of Webdynpro Allpications</a>
Regards,
Ramganesan K.

WebDynpro Application Performance

Can any one guide me how to check WebDynpro Application Performance. I have application which refreshes every 1 hour. There are 1500-2000 users for this. Can any one guide me how to monitor and do changes for streamlining performance?
Also my application is using both VC and webDynpro in one page.
Thanks in advance

To can check the performance of the webdynpro application follow the procedure mentioned in the link below.
/people/bertram.ganz/blog/2006/11/21/analyzing-web-dynpro-java-application-performance-with-a-simple-url-parameter

Performance with external display

Hello,
when I'm connecting my 19'' TFT to the MacBook the performance (with the same applications runnig) is realy bad. It tooks longer to switch between apps and if I don't use an app for some time, it can took up to 30 sec to "reactivate" the app.
Because the HD is working when I switch apps, it looks like the OS is swapping. My question: Would it help to upgrade the MacBook to 2GB ram? AFAIC the intel card uses shared memory.
Thanks for your help
Till
MacBook 1.83 GHz/1GB Mac OS X (10.4.8)

How much RAM do you have? Remember that the MB does not have dedicated VRAM like some computers do and that it uses the system RAM to drive the graphics chipset.
I use my MB with the mini-DVI to DVI adapter to drive a 20" widescreen monitor without any of the problems that you describe, but I have 2GB of RAM. If you only have the stock 512MB of RAM, that may be part of what you are seeing.

Oracle Spatial Performance with 10-20.000 users

Does anyone have any experience when Oracle Spatial is used with say 20.000 concurrent users. I am not interested in MapViewer response time, but lets say there is:
- an app using 800 different tables each having an sdo_geometry column
- the app is configured with different tables visible on different view scales
- let's say an average of 40-50 tables is visible at any given time
- some tables will have only a few records, while other can hold millions.
- there is no client side caching
- clients can zoom in/out pan.
Anwers I am interested in:
- What sort of server would be required
- How can Oracle serve all that data (each Refresh renders the map and retrieves the data over the wire as there is no client side caching).
- What sort of network infrastructure would be required.
- Can clients connect to different servers and hence use load balancing or does Oracle have an automatic mechanism for that?
Thanks in advance,
Patrick

Patrick, et al.
There are lots of things one can do to improve performance in mapping environments because of a lot of the visualisation is based on "background" or read-only data. Here are some "tips":
1. Spatially sort read-only data.
This tip makes sure that data that is close to each other in space are next to each other on disk! Dan gave a good suggestion when he referenced Chapter 14, "Reorganize the Table Data to Minimize I/O" pp 580- 582, Pro Oracle Spatial. But just as easily one can create a table as select ... where sdo_filter() where the filtering object is an optimized rectangle across the whole of the dataset. (This is quite quick on 10g and above but much slower on earlier releases.)
When implementing this make sure that the created table is created such that its blocks are next to each other in the tablespace. (Consider tablespace defragmentation beforehand.) Also, if the data is READ ONLY set the PCTFREE to 0 in order to pack the data up into as small a number of blocks as possible.
2. Generalise data
Rendering spatial data can be expensive where the data is geometrically detailed (many vertices) esp where the data is being visualised at smaller scales than it was captured at. So, if your "zoom thresholds" allow 1:10,000 data to be used at 1:100,000 then you are going to have problems. Consider pre-generalising the data (see sdo_util.simplify) before deployment. You can add multiple columns to your base table to hold this data. Be careful with polygon data because generalising polygons that share boundaries will create gaps etc as the data is more generalised. Often it is better to export the data to a GIS which can maintain the boundary relationships when generalising (say via topological relationships).
Oracle's MapViewer has excellent on-the-fly generalisation but here one needs to be careful. Application tier caching (cf Bryan's comments) can help here a lot.
3. Don't draw data that is sub-pixel.
As one zooms out objects become smaller and smaller until they reach a point where the whole object can be drawn within a single pixel. If you have control over your map visualisation application you might want to consider setting the SDO_FILTER parameter "min_resolution" flag dynamically so that its value is the same as the number of meters / pixel (eg min_resolution=10). If this is set Oracle Spatial will only include spatial objects in the returned search set if one side of a geometry's MBR is greater than or equal to this value. Thus any geometries smaller than a pixel will not be returned. Very useful for large scale data being drawn at small scales and for which no selection (eg identify) is required. With Oracle MapViewer this behaviour can be set via the generalized_pixels parameter.
3. SDO_TOLERANCE, Clean Data
If you are querying data other than via MBR (eg find all land parcels that touch each other) then make sure that your sdo_tolerance values are appropriate. I have seen sites where data captured to 1cm had an sdo_tolerance value set to a millionth of a meter!
A corollary to this is make sure that all your data passes validation at the chosen sdo_tolerance value before deploying to visualisation. Run sdo_geom.validate_geometry()/validate_layer()...
4. Rtree Spatial Indexing
At 10g and above lots of great work went in to the RTree indexing. So, make sure you are using RTrees and not QuadTrees. Also, many GIS applications create sub-optimal RTrees by not using the additional parameters available at 10g and above.
4.1 If your table/column sdo_geometry data contains only points, lines or polygons then let the RTree indexer know (via layer_gtype) as it can implement certain optimizations based on this knowledge.
4.2 With 10g you can set the RTree's spatial index data block use via sdo_pct_free. Consider setting this parameter to 0 if the table/column sdo_geometry data is read only.
4.3 If a table/column is in high demand (eg it is the most commonly used table in all visualisations) you can consider loading (a part of) the RTree index into memory. Now, with the RTree indexing, the sdo_non_leaf_tbl=true parameter will split the RTree index into its leaf (contains actual rowid reference) and non-leaf (the tree built on the leaves) components. Most RTrees are built without this so only the MDRT*** secondary tables are built. But if sdo_non_leaf_tbl is set to true you will see the creation of an additional MDNT*** secondary table (for the non_leaf part of the rtree index). Now, if appropriate, the non_leaf table can be loaded into memory via the following:
ALTER TABLE MDNT*** STORAGE(BUFFER_AREA KEEP);
This is NOT a general panacea for all performance problems. One should investigate other options before embarking on this (cf Tom Kyte's books such as Expert Oracle Database Architecture, 9i and 10g Programming Techniques and Solutions.)
4.4 Don't forget to check your spatial index data quality regularly. Because many sites use GIS package GUI tools to create tables, load data and index them, there is a real tendency to not check what they have done or regularly monitor the objects. Check the SDO_RTREE_QUALITY column in USER_SDO_INDEX_METADATA and look for indexes with an SDO_RTREE_QUALITY setting that is > 2. If > 2 consider rebuilding or recreating the index.
5. The rendering engine.
Whatever rendering engine one uses make sure you try and understand fully what it can and cannot do. AutoDesk's MapGuide is an excellent product but I have seen it simply cache table/column data and never dynamically access it. Also, I have been at one site which was running Deegree and MapViewer and MapViewer was so fast in comparison to Deegree that I was called in to find out why. I discovered that Deegree was using SDO_RELATE(... ANYINTERACT ...) for all MBR queries while MapViewer was using SDO_FILTER. Just this difference was causing some queries to perform at < 10% of the speed of MapViewer!!!!
6. Consider "denormalising" data
There is an old adage in databases that is "normalise for edit, denormalise for performance". When we load spatial data we often get it from suppliers in a fairly flat or normalised form. In consort with spatial sorting, consider denormalising the data via aggregations based on a rendering attribute and some sort of spatial unit. For example, if you have 1 million points stored as single points in SDO_GEOMETRY.SDO_POINT which you want to render by a single attribute containing 20 values, consider aggregating the data using this attribute AND some sort of spatial BUCKET or BIN. So, consider using SDO_AGGR_UNION coupled with Spatial Analysis and Mining package functions to GROUP the data BY <<column_name>> and a set of spatial extents.
6. Tablespace use
Finally, talk to your DBA in order to find out how the oracle database's physical and logical storage is organised. Is a SAN being used or SAME arranged disk arrays? Knowing this you can organise your spatial data and indexes using more effective and efficient methods that will ensure greater scalability.
7. Network fetch
If your rendering engine (app server) and database are on separate machines you need to investigate what sort of fetch sizes are being used when returning data from queries to the middle-tier. Fetch sizes for attribute only data rows and rows containing spatial data can be, and normally are, radically different. Accepting the default settings for these sizes could be killing you (as could the sort_area_size of the Oracle session the application server has created on the database). For example I have been informed that MapInfo Pro uses a fixed value of 25 records per fetch when communicating with Oracle. I have done some testing to show that this value can be too small for certain types of spatial data. SQL Developer's GeoRaptor uses 100 which is generally better (but this one can modify this). Most programmers accept defaults for network properties when programming in ADO/ODBC/OLEDB/JDBC: just be careful as to what is being set here. (This is one of the great strengths of ArcSDE: its TCP/IP network transport is well written, tuneable and very efficient.)
8. Physical Format
Finally, while Oracle's excellent MapViewer requires data its spatial data to be in Oracle, other commercial rendering engines do not. So, consider using alternate, physical file formats that are more optimal for your rendering engine. For example, Google Earth Enterprise "compiles" all the source data into an optimal format which the server then serves to Google Earth Enterprise clients. Similarly, a shapefile on local disk to the application server (with spatial indexing) may be faster that storing the data back in Oracle on a database server that is being shared with other business databases (eg Oracle financials). If you don't like this approach and want to use Oracle only consider using a dedicated Oracle XE on the application server for the data that is read only and used in most of your generated maps eg contour or drainage data.
Just some things to think about.
regards
Simon

Extremely slow performance with Radeon HD 7870

Hi,
I am using a number of Adobe programs on my new Windows 8 64 bit system, with 16 gigs of ram, an Intel Core i5 2.67ghz, and AMD Radeon HD 7870 2 gig. All the programs (including After Effects and Illustrator) work very well with the exception of Photoshop CS6 64 bit, which has extremely slow performance with Use Graphics Processor enabled in my preferences (which Photoshop selects by default). If I turn off Use Graphics Processor, the slow performance vanishes. If I change Drawing Mode to Basic, there might be a slightly detectable improvement over Normal and Advanced, but it's still horribly slow. The refresh rate seems to be just a few frames per second. Everything is slow: brushes, zooming, panning, everything.
I've tried changing the settings I've seen suggested elsewhere: I switched Cache levels to 2, history states to 10, and tile size to 128k. No effect. Photoshop is currently at the default of using 60% of available ram. Efficiency has remained at 100% throughout all my tests. Also, this slow performance has affected me from the moment I installed Photoshop; it didn't crop up after previous good performance. The problem exists regardless of the size or number of documents I have open. Performance is still terrible even when I create a 500 x 500 pixel blank new canvas and try a simple task like drawing with the brush.
Photoshop is fully up to date, and so are my graphics drivers (Catalyst version 13.1). Any help would be greatly appreciated; at the moment performance is so bad in Photoshop that it's unusable with graphics acceleration enabled. Thanks in advance for replying.
Photoshop System Info:
Adobe Photoshop Version: 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00) x64
Operating System: Windows 8 64-bit
Version: 6.2
System architecture: Intel CPU Family:6, Model:14, Stepping:5 with MMX, SSE Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2
Physical processor count: 4
Processor speed: 2665 MHz
Built-in memory: 16379 MB
Free memory: 13443 MB
Memory available to Photoshop: 14697 MB
Memory used by Photoshop: 60 %
Image tile size: 128K
Image cache levels: 2
OpenGL Drawing: Enabled.
OpenGL Drawing Mode: Advanced
OpenGL Allow Normal Mode: True.
OpenGL Allow Advanced Mode: True.
OpenGL Allow Old GPUs: Not Detected.
OpenCL Version: 1.2 AMD-APP (1084.4)
OpenGL Version: 3.0
Video Rect Texture Size: 16384
OpenGL Memory: 2048 MB
Video Card Vendor: ATI Technologies Inc.
Video Card Renderer: AMD Radeon HD 7800 Series
Display: 1
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Video Card: AMD Radeon HD 7800 Series
Driver Version:
Driver Date:
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Video Mode: 1920 x 1080 x 4294967296 colors
Video Card Caption: AMD Radeon HD 7800 Series
Video Card Memory: 2048 MB
Video Card Number: 1
Video Card: Microsoft Basic Render Driver
Driver Version: 9.12.0.0
Driver Date: 20121219000000.000000-000
Video Card Driver:
Video Mode:
Video Card Caption: Microsoft Basic Render Driver
Video Card Memory: 0 MB
Serial number: 90970078453021833509
Application folder: C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)\
Temporary file path: C:\Users\RAFFAE~1\AppData\Local\Temp\
Photoshop scratch has async I/O enabled
Scratch volume(s):
C:\, 931.5G, 534.8G free
Required Plug-ins folder: C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)\Required\
Primary Plug-ins folder: C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)\Plug-ins\
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   Neon Glow 13.0
   Note Paper 13.0
   NTSC Colors 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Ocean Ripple 13.0
   Oil Paint 13.0
   OpenEXR 13.0
   Paint Daubs 13.0
   Palette Knife 13.0
   Patchwork 13.0
   Paths to Illustrator 13.0
   PCX 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Photocopy 13.0
   Photoshop 3D Engine 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Picture Package Filter 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Pinch 13.0
   Pixar 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Plaster 13.0
   Plastic Wrap 13.0
   PNG 13.0
   Pointillize 13.0
   Polar Coordinates 13.0
   Portable Bit Map 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Poster Edges 13.0
   Radial Blur 13.0
   Radiance 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Range 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Read Watermark 4.0
   Reticulation 13.0
   Ripple 13.0
   Rough Pastels 13.0
   Save for Web 13.0
   ScriptingSupport 13.1.2
   Shear 13.0
   Skewness 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Smart Blur 13.0
   Smudge Stick 13.0
   Solarize 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Spatter 13.0
   Spherize 13.0
   Sponge 13.0
   Sprayed Strokes 13.0
   Stained Glass 13.0
   Stamp 13.0
   Standard Deviation 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   STL 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Sumi-e 13.0
   Summation 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Targa 13.0
   Texturizer 13.0
   Tiles 13.0
   Torn Edges 13.0
   Twirl 13.0
   Underpainting 13.0
   Vanishing Point 13.0
   Variance 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Variations 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Water Paper 13.0
   Watercolor 13.0
   Wave 13.0
   Wavefront|OBJ 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   WIA Support 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   Wind 13.0
   Wireless Bitmap 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
   ZigZag 13.0
Optional and third party plug-ins:
   DAZ Studio 3D Bridge 12.0
   DazUpdateScene 12.0
Plug-ins that failed to load: NONE
Flash:
   Mini Bridge
   Kuler
Installed TWAIN devices: NONE

Great news!
I followed your suggestion, Noel, and uninstalled my drivers with the Catalyst Uninstall Utility (which I hadn't used before), rebooted, reinstalled Catalyst 13.2 Beta 7, rebooted, deleted the PS Prefs, started PS, and now the performance is radically improved!
It baffles me why I would need to do a clean driver uninstall in a new system environment that has only ever had this video card, and is only a few months old, but that action seems to be what's improved the situation. Note that because I deleted the PS preferences, the good performance now occurs with the default Use Graphics Processor enabled, and Drawing Mode set to Advanced (with every feature in the Advanced dialog checked except 30bit display).
Having no reference point, I can't tell for sure if performance is as good as it theoretically ought to be for my system specs, but using the standard 13px brush is only slightly laggy behind the cursor, even if I become reckless and squiggle on the canvas violently. It wasn't just sluggish response before: Photoshop seemed to be in pain trying to draw the line segments as it laboured to catch up to the cursor. That is pretty much gone now.
Much more tellingly, zooming and panning the canvas is like it ought to be, responsive and clean, more or less like it was for me in CS4 with my old Nvidia 9600GT. The poor performance with zooming and panning was the most worrying aspect of the issue. It's a great relief to see these working more properly now.
I have to confess I'm a little embarrassed to have drug you through all this hassle only to discover that something as rudimentary as properly cleaning out the drivers would be the apparent solution. I never would have imagined that doing that, with such a new and stable system, would make any difference, since I don't have a legacy of older drivers dotting my hard drive. In any event, I'm really grateful that you guys took the time to try to help me.
In the interest of completeness, here's the relevant portion of my system info after doing the reinstall steps I mentioned above:
Adobe Photoshop Version: 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00) x64
Operating System: Windows 8 64-bit
Version: 6.2
System architecture: Intel CPU Family:6, Model:14, Stepping:5 with MMX, SSE Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2
Physical processor count: 4
Processor speed: 2665 MHz
Built-in memory: 16379 MB
Free memory: 13680 MB
Memory available to Photoshop: 14695 MB
Memory used by Photoshop: 60 %
Image tile size: 1024K
Image cache levels: 4
OpenGL Drawing: Enabled.
OpenGL Drawing Mode: Advanced
OpenGL Allow Normal Mode: True.
OpenGL Allow Advanced Mode: True.
OpenGL Allow Old GPUs: Not Detected.
OpenCL Version: 3.0
OpenGL Version: 3.0
Video Rect Texture Size: 16384
OpenGL Memory: 2048 MB
Video Card Vendor: ATI Technologies Inc.
Video Card Renderer: AMD Radeon HD 7800 Series
Display: 1
Display Bounds: top=0, left=0, bottom=1080, right=1920
Video Card Number: 2
Video Card: AMD Radeon HD 7800 Series
Driver Version:
Driver Date:
Video Card Driver: aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.d ll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Video Mode: 1920 x 1080 x 4294967296 colors
Video Card Caption: AMD Radeon HD 7800 Series
Video Card Memory: 2048 MB
Video Card Number: 1
Video Card: Microsoft Basic Render Driver
Driver Version: 12.100.17.0
Driver Date: 20130226000000.000000-000
Video Card Driver:
Video Mode:
Video Card Caption: Microsoft Basic Render Driver
Video Card Memory: 0 MB
As you can see, the Microsoft Basic Render Driver still appears as a Video Card in the list. This presumably has something to do with Windows 8, and I really don't know if its presence here is still a sign that my card is not being used to its optimal capability. I have a hunch that the slight lag that I am still experiencing with the brush when Use Graphics Processor is on -- totally absent with the acceleration turned off -- implies that Photoshop is still unable to take maximum advantage of my card. I would assume that the brush tool should be more responsive with acceleration on than off, in a rig without any issues, but that's just assumption on my part. If you turn off Use Graphics Processor on your systems, is the brush tool more or less responsive?
But again, panning the canvas with the hand tool is now extremely responsive, without any screen tearing or visible lag, and that's a massive improvement over the total meltdown of performance I was suffering from before.
Thanks again very much for your help. I'm grateful to all of you who took the time to chime in.

NAM Report Analyze -- Wan Optimization -- Application Performance Analysis Report

Hello,
Transaction Time (Client Exprerience) report does not show optimized traffic. For this graph what we expect is to show side by side the transaction time of optimized and non optimized traffic side by side to give information about the baseline and optimized application performance.
May it be that the optimization should be disabled for some time for the Wan Sites, and after some time manually reenabled in order to compare these values? This should be difficult for large deployments since manually disabling and reenabling for performance analysis time taking task.
Best Regards,

Mohammed,
It is common, in many of the Cisco Express 8.5 environments we have looked at, for the Total Incoming Calls given on a Traffic Analysis report to be a higher number than an Application Report.
The Traffic Analysis Report counts every unique sessionID (unique call) that is inbound (contact type of 1). The Application Reports do a similar thing but qualify (filter) only the records that have an application assigned.
There are simply times where inbound calls have been directed to an "agent" without having an applicaiton assigned.
The best thing the reporting user can do is to run a query on his or her database such as:
select * from ContactCallDetail where contactType=1and startDateTime > '2012-11-16 10:00:00' and startDateTime < '2012-11-16 11:00:00';
Usually when an application is not assigned to the record in the ContactCallDetail table it is because the destination type is equal to 1, which is an 'Agent' instead of a 'route point'.
So if you modify your select statement to filter by destinationType, you can quickly find the records that don't have the application assigned.
Example: select * from ContactCallDetail where contactType = 1 and destinationType = 1 and startDateTime > '2012-11-16 10:00:00 and startDateTime < 2012-11-16 11:00:00';
When you look at these records, you will see the agent that took the call from the destinationID field. The number in that field should match up with the field called 'resourceID' in a table called 'resouce';
Example: select * from resource where resouce=6011; where 6011 was the number you found in the destinationID field.
If there is still confusion about the source of the call - then talk to that agent and find out what is was.
Good Luck and let me know if you need further help.
Ron Reif
[email protected]

ADF-JSF: Application Performance Issue

Hello!
My question or set of questions will be a bit vague...I am simply not sure where to look for problem(s). So here is what I have. Application implemented with ADF-JSF (JDEV ver:10.1.3.2.0). It basically has 5 pages. Each page containes user input form, commandButton and result table. Functionally, each page is a 'search page' that returns results based on what user specified in the form. Components on each page are bound to VO that is based on EO (DB table). Tables have at least 2.5M records up to 16M. Certain indexes exist (for most common searches) to improve the performance. However, there have been performance issues found and largely they would be grouped into the following:
1. User is on page A, performs the search, goes to page B (via link) and performs other search, then goes back to A and similar search takes much longer to return results. Seems to me that this moght be related to memory. Maybe results of the previous search are cashed and it takes new search to retreive results longer as the VO cashe needs to be cleared first. Does that make sense?
2. User is on page A and then goes to B. Leaves browser for 10-20 minutes and tries to go back to A. It takes up to a minute before page reloads with the previously displayed results. I am thinking this has to be related to page lifecycle where AM tries to re-execute bindings ( I do not think it is passivation issue though). What is the best practice to control the lifecycle?
Any pointer on where to look for the solution is very welcome.
Rade

Carl,
To use Tom Kyte's analogy, you are firing a gun into a room full of people hoping to hit the bad guy. You haven't seemed to have gotten any information about where the performance issues lie. It could be in the DB, network, ADF Business Components, JSF layer, other stuff monopolizing resources, etc, etc. I have ADF BC apps developed in 10.1.3.3 that run quite well.
So, I would recommend you spend some time investigating where the performance problems lie. Try turning on logging output, check machine utilization - use your investigative techniques to find the bad guy so you can then work on fixing him.
John

OBIEE 11g Application Performance Monitoring

Are there any best practices or recommendations for Application Performance Monitoring for OBIEE 11g?
I see that from Fusion MiddleWare Control, we can navigate to Business Intelligence -> CoreApplication (right click) -> Monitoring -> Performance
And from here we have a huge amount of performance metrics to choose from.
What I'm interested in finding out is:
1). Out of these hundreds of metrics, are there a subset of "core" performance metrics that Oracle recommends monitoring that gives a good baseline for performance of the application?
2) What are the options for capturing/gathering/saving these metrics for historical and trend analysis?

Excellent post. Thanks. Is there some sort of trial of the tool you guys built that's described in the post you linked?
"In addition to the out-of-the-box options above, here at RittmanMead we have developed our own OBIEE monitoring tool.
DMS metrics are stored directly on disk or through a database, enabling both immediate and retrospective analysis. Custom dashboards enable the display of both OBIEE and OS data side-by-side for ease of analysis. Integration with third-party tools is also an option."

DO's & DONT's for a better application performance

I am very new to tuning. What are the sql & pl/sql do's and dont's and best sql & pl/sql practices for a better application performance?
I was told by somebody to check explain plan for tuning db & sql statements. But i am bit confused by seeing the explain and don't know from where i have start and what i have take into consideration from explain plan to improve application preformance?
Can somebody help me in this regard?

> I am very new to tuning.
Good. Not having to tune means that the code is performing as it should.
And this is THE MOST IMPORTANT CONSIDERATION.
Do not write and design code that needs to be tuned and twisted and modded in order to perform. Write and design code with the core requirements of that code being:
- performance
- scalability
- flexibility
- maintainability
Good design = good code = good performance
No amount of tuning can turn bad code and a bad design into a well performing and scalable system. Which is why I dislike the concept of "tuning code". Start with a good and solid design. In other words, tune that before the code.
> What are the sql & pl/sql do's and dont's and best sql & pl/sql practices
for a better application performance?
The 1st basic rule is actually quite simple.
The "data layer" rule: Maximize SQL. Minimize PL/SQL.
Do not do in PL/SQL what SQL is very capable of doing. Fact. No other language is faster and better than SQL at crunching data in the Oracle RDBMS.
The 2nd basic rule is a logical extension of the 1st.
The "application layer" rule. Maximize PL/SQL. Minimize Java/C++/C#/Delphi/VB/etc.
Do not do in a 3rd party language what PL/SQL is extremely capable of doing. Fact. No 3rd party language is as capable as crunching data in the Oracle RDBMS as PL/SQL.
Stick to these two fundamental rules and your Oracle application will have a solid foundation for being a well performing and very scalable solution.

JDeveloper performance with XSL Mapper

Hi All,
Not sure if this is the right place to ask this question since it has to do JDeveloper performance with SOA and not ADF.
In the XSL Transformation mapper tool, whenever I do an auto-map between two large schemas, my JDeveloper memory usage hikes up to about 1.3 GB and then both the JRE and JDeveloper hangs although the transformation finishes. The problem is that sometimes it hangs before you can save it. It almost seems like a memory leak.
NOTE: I am not getting any out-of-memory error since I increased already increased the memory.
Any help to optimize and solve this problem will be very helpful.
Thanks!

chk this
http://docs.oracle.com/cd/E11036_01/doc.1013/e10295/xslt_mpr.htm
you should have SOA composite application extension for this..
if you dont want a visual transformation then you can use the jdeveloper project properties -> Run/Debug -> edit run configuration -> XSLT

Does native compiling improve application performance ?

Hi,
I've got familiar with Excelsior Native Compiler since a week ago. They claim on their website that compiling Java classes directly to native code (machine code) will improve the performance of the application. However, JAlbum (http://jalbum.net) says that its JAR files of the application run "basically at the same speed" compared to the native compiled one for windows.
Does really compiling Java classes to native code improve performance? I'm not talking about the startup speed, but the whole application performance.
Thanks...

Youve really been spreading that article aroundthis
morning, George, lol.
It was actually a really good read this morning.
Thanks for posting it.I know! just realized that's about the 3rd or 4th
time I've posted it today. just a coincidence, thoughcan't promote that book enough though. Should be required reading (just like Effective Java).

Application Performance with DBMS_APPLICATION_INFO

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