Problem of performance with xerces?
I am to build a server which parse XML message with sax(xerces) but when i send very many message to it,the parsing is sometime very slow (10x slower for 1 of 20 messages sent).Is anybody have an explication?
(soory for my english :) )
Yes Xerces is slow when the node list gets longer and longer because it follows all the changes in the document. It also consumes memory.
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Note that this is boilerplate text.
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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
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OpenGL Allow Old GPUs: Not Detected.
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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
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Video Card: Microsoft Basic Render Driver
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Driver Date: 20121219000000.000000-000
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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\
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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\
Additional Plug-ins folder: not set
Installed components:
ACE.dll ACE 2012/06/05-15:16:32 66.507768 66.507768
adbeape.dll Adobe APE 2012/01/25-10:04:55 66.1025012 66.1025012
AdobeLinguistic.dll Adobe Linguisitc Library 6.0.0
AdobeOwl.dll Adobe Owl 2012/09/10-12:31:21 5.0.4 79.517869
AdobePDFL.dll PDFL 2011/12/12-16:12:37 66.419471 66.419471
AdobePIP.dll Adobe Product Improvement Program 7.0.0.1686
AdobeXMP.dll Adobe XMP Core 2012/02/06-14:56:27 66.145661 66.145661
AdobeXMPFiles.dll Adobe XMP Files 2012/02/06-14:56:27 66.145661 66.145661
AdobeXMPScript.dll Adobe XMP Script 2012/02/06-14:56:27 66.145661 66.145661
adobe_caps.dll Adobe CAPS 6,0,29,0
AGM.dll AGM 2012/06/05-15:16:32 66.507768 66.507768
ahclient.dll AdobeHelp Dynamic Link Library 1,7,0,56
aif_core.dll AIF 3.0 62.490293
aif_ocl.dll AIF 3.0 62.490293
aif_ogl.dll AIF 3.0 62.490293
amtlib.dll AMTLib (64 Bit) 6.0.0.75 (BuildVersion: 6.0; BuildDate: Mon Jan 16 2012 18:00:00) 1.000000
ARE.dll ARE 2012/06/05-15:16:32 66.507768 66.507768
AXE8SharedExpat.dll AXE8SharedExpat 2011/12/16-15:10:49 66.26830 66.26830
AXEDOMCore.dll AXEDOMCore 2011/12/16-15:10:49 66.26830 66.26830
Bib.dll BIB 2012/06/05-15:16:32 66.507768 66.507768
BIBUtils.dll BIBUtils 2012/06/05-15:16:32 66.507768 66.507768
boost_date_time.dll DVA Product 6.0.0
boost_signals.dll DVA Product 6.0.0
boost_system.dll DVA Product 6.0.0
boost_threads.dll DVA Product 6.0.0
cg.dll NVIDIA Cg Runtime 3.0.00007
cgGL.dll NVIDIA Cg Runtime 3.0.00007
CIT.dll Adobe CIT 2.1.0.20577 2.1.0.20577
CoolType.dll CoolType 2012/06/05-15:16:32 66.507768 66.507768
data_flow.dll AIF 3.0 62.490293
dvaaudiodevice.dll DVA Product 6.0.0
dvacore.dll DVA Product 6.0.0
dvamarshal.dll DVA Product 6.0.0
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dvaplayer.dll DVA Product 6.0.0
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dvaunittesting.dll DVA Product 6.0.0
dynamiclink.dll DVA Product 6.0.0
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FileInfo.dll Adobe XMP FileInfo 2012/01/17-15:11:19 66.145433 66.145433
filter_graph.dll AIF 3.0 62.490293
hydra_filters.dll AIF 3.0 62.490293
icucnv40.dll International Components for Unicode 2011/11/15-16:30:22 Build gtlib_3.0.16615
icudt40.dll International Components for Unicode 2011/11/15-16:30:22 Build gtlib_3.0.16615
image_compiler.dll AIF 3.0 62.490293
image_flow.dll AIF 3.0 62.490293
image_runtime.dll AIF 3.0 62.490293
JP2KLib.dll JP2KLib 2011/12/12-16:12:37 66.236923 66.236923
libifcoremd.dll Intel(r) Visual Fortran Compiler 10.0 (Update A)
libmmd.dll Intel(r) C Compiler, Intel(r) C++ Compiler, Intel(r) Fortran Compiler 12.0
LogSession.dll LogSession 2.1.2.1681
mediacoreif.dll DVA Product 6.0.0
MPS.dll MPS 2012/02/03-10:33:13 66.495174 66.495174
msvcm80.dll Microsoft® Visual Studio® 2005 8.00.50727.6910
msvcm90.dll Microsoft® Visual Studio® 2008 9.00.30729.1
msvcp100.dll Microsoft® Visual Studio® 2010 10.00.40219.1
msvcp80.dll Microsoft® Visual Studio® 2005 8.00.50727.6910
msvcp90.dll Microsoft® Visual Studio® 2008 9.00.30729.1
msvcr100.dll Microsoft® Visual Studio® 2010 10.00.40219.1
msvcr80.dll Microsoft® Visual Studio® 2005 8.00.50727.6910
msvcr90.dll Microsoft® Visual Studio® 2008 9.00.30729.1
pdfsettings.dll Adobe PDFSettings 1.04
Photoshop.dll Adobe Photoshop CS6 CS6
Plugin.dll Adobe Photoshop CS6 CS6
PlugPlug.dll Adobe(R) CSXS PlugPlug Standard Dll (64 bit) 3.0.0.383
PSArt.dll Adobe Photoshop CS6 CS6
PSViews.dll Adobe Photoshop CS6 CS6
SCCore.dll ScCore 2011/12/14-15:08:46 66.490082 66.490082
ScriptUIFlex.dll ScriptUIFlex 2011/12/14-15:08:46 66.490082 66.490082
svml_dispmd.dll Intel(r) C Compiler, Intel(r) C++ Compiler, Intel(r) Fortran Compiler 12.0
tbb.dll Intel(R) Threading Building Blocks for Windows 3, 0, 2010, 0406
tbbmalloc.dll Intel(R) Threading Building Blocks for Windows 3, 0, 2010, 0406
updaternotifications.dll Adobe Updater Notifications Library 6.0.0.24 (BuildVersion: 1.0; BuildDate: BUILDDATETIME) 6.0.0.24
WRServices.dll WRServices Friday January 27 2012 13:22:12 Build 0.17112 0.17112
Required plug-ins:
3D Studio 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Accented Edges 13.0
Adaptive Wide Angle 13.0
Angled Strokes 13.0
Average 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
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Chalk & Charcoal 13.0
Charcoal 13.0
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Collada 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Color Halftone 13.0
Colored Pencil 13.0
CompuServe GIF 13.0
Conté Crayon 13.0
Craquelure 13.0
Crop and Straighten Photos 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Crop and Straighten Photos Filter 13.0
Crosshatch 13.0
Crystallize 13.0
Cutout 13.0
Dark Strokes 13.0
De-Interlace 13.0
Dicom 13.0
Difference Clouds 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Diffuse Glow 13.0
Displace 13.0
Dry Brush 13.0
Eazel Acquire 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Embed Watermark 4.0
Entropy 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Extrude 13.0
FastCore Routines 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Fibers 13.0
Film Grain 13.0
Filter Gallery 13.0
Flash 3D 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Fresco 13.0
Glass 13.0
Glowing Edges 13.0
Google Earth 4 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Grain 13.0
Graphic Pen 13.0
Halftone Pattern 13.0
HDRMergeUI 13.0
IFF Format 13.0
Ink Outlines 13.0
JPEG 2000 13.0
Kurtosis 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Lens Blur 13.0
Lens Correction 13.0
Lens Flare 13.0
Liquify 13.0
Matlab Operation 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Maximum 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Mean 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Measurement Core 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Median 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Mezzotint 13.0
Minimum 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
MMXCore Routines 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
Mosaic Tiles 13.0
Multiprocessor Support 13.1.2 (13.1.2 20130105.r.224 2013/01/05:23:00:00)
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)
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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: NONEGreat 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. -
Bad performance with brandnew system
hello,
i set up a completely new win7-64bit based on a fresh osx (snow-leopard update) on a fresh harddisk....and i have very bad 3d performance with only 3 (!!) programs installed. i am working with autodesk 3ds max and autocad and both run very slow. my last system was win7-64bit, too, but running MUCH faster.
it must be a driver problem, but i dont know how to change the nvidia driver.
edit:
after having changed driver from directx 9 to open-gl performance is very fast.
please help.
alex
Message was edited by: mbp_3dHi Bruno
In the following Re: Generic Sync: Object can not be deserilized / Multiple synchronization call you had mentioned that you are using MI 2.5 SP16 Client. For your information MI doesnt support Windows Mobile 5 OS on SP16 but only from SP18 does it support this OS. Have you tried upgrading the client to any of the SPs i had mentioned in the above thread and then checked the performance?
Best Regards
Sivakumar -
Facing a major problem while performing restoration of my mssql DB
Dear Experts,
I am facing a major problem while performing restoration of my mssql DB. The situation is like
1. I have successfully take full and transactional log backup in a external device using MSSQL Server Managemnt Studio.
Backup was successfully completed as per MSSQL Server Managemnt Studio message.
2. Try to restore the same using MSSQL Server Managemnt Studio. It is showing the following error
System.Data.SqlClient.SqlError: RESTORE cannot process database <DB_SID> because
it is in use by this session. It is recommended that the master database be used when
performing this operation.
I have followed the guidelines specified in the link
[SAP Help Link for Restoring the <SAPSID> Backup from a Device |http://help.sap.com/saphelp_nw70/helpdata/en/f2/31ad56810c11d288ec0000e8200722/frameset.htm]
But everytime I am getting the same error message. I have checked with all options but there
was no resolutions. Kindly advise me in this regard.
Thanks and Regards,
Parthahttp://social.msdn.microsoft.com/Forums/en-CA/sqltools/thread/37ee8e24-7aaa-472b-861a-fc0cc513338a
hope it helps -
Best performance with forms 4.5 than 6i ?!!!
Hi,
Since i'd upgrade my app with forms 6i, i find that when i make a query, this is more slow with 6i than 4.5, with the same db(8i).
Does anyone else had the same problem?
What could i do to resolve the problem?
Thanks.
nullSee my earlier posting 'Speeding load time of WEB Forms50'. I
have had no takers yet on a solution to this. There may be some
hints for you there.
Good luck on this one - Forms over the WEB seems to be very
processor and memory hungry. We would like to support about 200
users on a VERY simple search screen, but we need about 2Gbyte
of physical memory on the server to get any amount of useful
speed out of it. Each Forms session takes up about 10Mbyte on
the server - as soon as this starts swapping out to disk then
your run-time performance goes right downhill. The earlier-
mentioned posting gives some hints on speeding up the startup
time, and it does work.
Regards,
Jason Judge
Natasha Murillo (guest) wrote:
: How I can Get better performance with Forms 4.5 and 6.0 on the
: WEB???
: It is very slow and my customers are not very happy with
that...
: Please help me...
null -
How does the mac mini perform with cs5
Just curious
How does the Intel HD Graphics 4000 in the new mac mini perform with cs5 photoshop cs6 photoshop?
thanks
TedJeff, I appreciate your comment, so you haven't had any problem with using the painttools in CS 6 photoshop and the 3d type etc, in other words all the features that CS6 photoshop has.
I was thinking about buying the mac mini but was concerned how it works with CS 5 (which I have) I will have to take another look at the MiniMac server with the 3000 card. I do a lot of Digital Painting primarily Painter 12.2 but and would like to use the Painter brushes in CS 5 ( have not upgraded to CS 6.) My Imac is 6 years old and really is not fast enough.
Thanks for replying
Ted -
Oracle XE 10.2.0.1.0 – Performance with BIG full-text indexes
I would like to use Oracle XE 10.2.0.1.0 only for the full-text searching of the files residing outside the database on the FTP server.
Recently I have found out that size of the files to be indexed is 5GB.
As I have read somewhere on this forum before size of the index should be 30-40% of the indexed text files (so with formatted documents like PDF or DOC even less).
Lets say that the CONTEXT index size over these files will be 1.5-2GB.
Number of the concurrent user will be max. 5.
Does anybody have any experience with Oracle XE performance with the CONTEXT index this BIG?
(Oracle XE license limitations: 1 GB RAM and 1 CPU)
Regards.
Edited by: user10543032 on May 18, 2009 11:36 AM
Edited by: user10543032 on May 18, 2009 12:10 PMI have used the 100% same configuration as above, but now for the Oracle Database 11g R1 11.1.0.7.0 – Production instead of Oracle 10g XE.
The result is that AUTO_FILTER for Oracle 11g is able to parse Czech language characters from the sample PDF file without any problems.
The problem with Oracle Text 10g R2 may be I guess:
1. In embedded fonts as mentioned in the Link: [documentation | http://download-west.oracle.com/docs/cd/B12037_01/text.101/b10730/afilsupt.htm] (I tried to embbed all fonts and the whole character set, but it did not helped)
2. in the character encoding of the text within the PDF documents.
I would like to add that also other third party PDF2Text converters have similar issues with the Czech characters in the PDF documents – after text extraction Czech national characters were displayed incorrectly.
If you have any other remarks, ideas or conclusions please reply :-) -
Improving persistent class performance with on-demand DB reads?
Hi,
Something that has been troubling me for some time is the data access design of persistent classes. A persistent class loads the ENTIRE data set when it is instantiated.
To me this defeats one of the advantages of get/set methods. What I would like is to be able to read data when it is first accessed.
For example: A purchase order header can be loaded in a few ms. However with items it can take 10 times as long - even more if the items are implemented as persistent classes themselves. If items are only needed half the time, a significant performance gain is realized by only reading items the first time the GET_ITEMS method is called. In my own persistence implementations using BI_PERSISTENT (Nothing to do with ABAP Persistent Classes), I implement this using private attributes to buffer data, along the lines of:
method get_items.
if m_items[] is initial.
m_items = <read and/or instantiate items>.
endif.
re_items = m_items.
endif.
Using ABAP Persistent Objects this does not appear to be possible since they insist on loading everything up front in the DB mapping or IF_OS_STATE~INIT methods. Is some kind of on-demand reading possible using ABAP Persistent Classes?
Any input appreciated
Cheers,
MikeHi Mike,
yes, I am also very interested in this topic. While developing my first (and only a mid-complex) persistence application, I am expecting slightly different behaviour of linked persistent objects than you described above. According to the book 'Object Services in ABAP' and lazy loading paradigm mentioned there, the referenced persistent objects should be instantiated as representative objects only, containing no data, and the data should be physically loaded from database only once it's really needed (ie. accessed or explicitly instantiated). This should be the approach preventing the situation of mass chained instantiation of many linked persistent objects where most of them will not be needed, probably.
This is what they say about instantiation of persistent objects that are linked by persistent references.
However, since the persistent objects do not allow creating of 1:N relationships (classics: HEADER->ITEMS) via persistent references automatically, then this kind of relationship has to be maintained manually and therefore I expect you having full control of when it is accessed and instantiated for the first time...? What I want to ask here is then: is there any suitable approach which allows to maintain 1:N relationship fully or semi-automatically and which (as a disadvantage) makes the problem for you with 'full' instantiation? Am I missing something? There are also some threads Table attributes and persistent classes regarding persistent mapping of table-like attributes, but no relevant answers (this should solve my problem as the table of persistent references could be saved then).
Until now, I have found almost nothing about how the 1:N relationship should be correctly built (only 1:1 or M:1 is supported via persistent references), so I am applying the following approach in my app. Any comments are welcome (excuse some typos, as this is written in Notepad, not on the running system):
ref_header = zca_header=>agent->create_persistent( ).
guid_of_header_class = ref_header->get_cl_guid( )."cl_guid is set in IF_OS_STATE~INIT
guid_of_header_instance =
zca_header=>agent->if_os_ca_service~get_oid_by_ref( ref_header ).
ref_header->set_inst_guid( "keep header inst. ref. for future lookups
i_inst_guid = guid_of_header_instance
lt_r_items = ref_header->create_items( "lt_r_items = table of items references
i_cl_guid = guid_of_header_class
i_inst_guid = guid_of_header_instance
it_items = lt_items )
and the method zcl_header->create_items then looks somewhat like this:
loop at it_items assigning <it_items>.
ref_item = zca_item=>agent->create_persistent( ).
ref_item->set_cl_guid( i_header_cl_guid = i_cl_guid ).
ref_item->set_inst_guid( i_header_inst_guid = i_inst_guid ).
ref_item->set_some_other_attrib(
i_some_other_attrib = <it_items>-some_other_attrib
append ref_item to rt_r_items. "rt_r_items = table of items references
endloop.
I have created a secondary index on items for header_cl_guid and header_inst_guid. This is used during the re-load of already saved items for particular header entry. Query service is used with header_cl_guid and header_inst_guid of actual header entry as filter criteria for item pesistent objects and table of item references is returned. Thus the instance attribute lt_r_items of ref_header is filled with references to relevant items again.
Thank you
Michal -
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
Maybe you are looking for
-
Order by clause require dynamic value
Hi I want to bind parameters to orderby clause. In where clause with bind parameter works fine. But in orderby clause ive done similar steps to have a dynamic sort which will be passed from the previous page in a session variable. Although it didnt s
-
AJAX / future development questions
Even though AJAX is as much Web (html, xhtml, dhtml), JS, and XML as it is Java 2EE, I figured this main forum was the best place to ask a few questions (we should have a future tech discussion area. (I didn't see one but sometimes I can't seem to fi
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Dose any one know how to set the MMS in the Belle?
Hi Nokia and all, After updated to the Belle for my N8, the MMS a access point setting is missing. As I remember in Anna version, the MMS access point setting can be find in this way, menu -> Setting -> connectivity -> Settings -> Network destination
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I currently have a Verizon iPhone 4. I don't want to upgrade, I want to get a cheap phone with a cheap plan. If I switch my phone number to a new phone can I still use the iPhone 4 like an iPod Touch? I especially want to keep using Kindle and keep a
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How can I disable the new sidebar feature of 8.1.2 in Safari?
How can I disable the new sidebar feature of 8.1.2 in Safari?