Cloned data source slower than cloneable

i use two cloned data source.... one to create a player and the other to record the movie to a file but when i start to record it is like it slows down.
could someone help me please ?
thank you in advance

There are a number of docs on how to profile EclipseLink to find out where time is being spent. Here is a link on overall performance:
http://wiki.eclipse.org/Optimizing_the_EclipseLink_Application_(ELUG)
Here is one specific to the EclipseLink profiler:
http://wiki.eclipse.org/EclipseLink/UserGuide/JPA/Advanced_JPA_Development/Performance/Performance_Monitoring_and_Profiling/Performance_Profiling
The profiler can tell you where each query is spending its time.
Please also note that you may want to turn on logging to see the SQL that actually gets generated for your JPQL query so you can see if there is a difference that might account for added time in the database statement. EclipseLink logging is described here: http://wiki.eclipse.org/EclipseLink/Examples/JPA/Logging . Remember to turn it off though for time comparisons as it will slow down the JPA query.
Please also remember that the database might be using a prepared statement for your JDBC query while have to parse the JPQL query statement the first time. Try executing the query multiple times to see how the performance changes.
Best Regards,
Chris

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PXI: NI 5600, data lost or stored if the loop time of processing is slow than the acquisition.

I want to know what occurs exactly at the time of L acquisition and the processing data acquired with Ni 5600. When J write my programme of processing of data in Labview, if the loop time of processing of data is slow than the acquisition, I want to know if PXI put the data in a buffer or then the data are lost.
J wait your answer impatiently. You can tell me the documentation were can i read to see the answer.
Anybody can help me.

hi abidi,
First, let me tell you how buffered acquisiton works.
If you are using Daq mx for continous acquisition, Labview will autoselect the size of buffer depending on the sampling rate specified.
In sample clock.vi, select sample mode as "continous samples".
Now, Labview will determine the loop speed for reading data that is written into the AI buffer and hence run necssary number of AI read loops to retrieve data from the buffer every second.
this loop speed can also be set by specifying "number of samples per channel" in AI read.vi.
If you leave this value at default ( -1) labview will function as explained above
This can also be set by user ,for example, if your sampling rate is 1000 saples per sec and number of samples per channel is 200, the AI Read functions is performed 5 times in a second.
read this link to get to know about cyclic buffers and continous acquisition.
http://zone.ni.com/devzone/conceptd.nsf/webmain/F2DDCBAD754C687C86256802007B8514
You tell that you are performing some processing on acquired data.
Now, your prgram has to allocate adequate process time for acquiring,retriving data from buffer and then processing it.
the time allocated for processing data depends on the kind of mathematical conversions involved. Nevertheless it is an overhead on the acquisition loop.
this may result in overflow of buffer and data being overwrittien in buffer which results in data loss. An eror message might also pop up to warn that this has happened.
so if your application permits, here's what you can do to avoid this problem
First acquire data and save it on system in ascii or binary fromat.
later retrieve this data file and perform processing /analysis on it.
if you have any further doubts, plz tell.
regards,
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Hi,
I want to take advantage of connection pooling and hence was trying to create a mapviewer datasource from J2EE container.
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Rest of the applications deployed on the OC4J container which makes use of the same J2EE ds works fine.
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http://www.oracle.com/technology/products/mapviewer/htdocs/faq_1012/mvfaq_1012.html#oc4jds
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Basically when creating the EO, I did not specify the schema object in the first step, and for each attribute that I created in the wizard, I also unchecked the checkbox "persistent". I could then create VO based on this EO and override all the necessary methods in the EO and VO so they can do CRUD operations via Web Service.
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Edited by: nhd on May 7, 2013 8:01 PM

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Is it possible to create data object lookup fields that point to data objects that are External Data Sources rather than Internal Data Objects.
Thanks,
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Thanks for you reply Matt.
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Hello,
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Past users have solved this frustrating problem. You can find their solutions with a Google search like "InDesign data merge multiple sequential items on one page" without quotes.
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Peter Gold
KnowHow ProServices
Frankie at Quad wrote:
I need to number tickets, 8 up on a tabloid page, in InDesign (CS5)
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Hi All,
We wanted extract Allocation data for the sales order from R/3 to BW. I am not able to find proper data source for it... there are two datasources..we wanted afs specific datasource
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If you decided to use generic data source, make sure that, U'll have to take only
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Hi Portal Gurus,
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Tag,
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Message was edited by: Keith Crossett

Select More than one Data Source in UM Configuration

hi,
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See Select More than one Data Source in UM Configuration

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Hi All,
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Bye.
Message was edited by:
user578388

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Thanks for reply
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When watching baseball highlights the video is slower than audio. I checked all my plug ins and they are up to date. suggestions?

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Cloned data source slower than cloneable

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