Any performance considerations with FABridge?

Hi, I've put together my first Flash / Ajax application using
FABridge, which looks an exciting new technology. So far, my trials
suggest I can create any number and type of Flash controls
dynamically from Javascript......however, can anyone from Adobe
advise what the performance difference is between a dynamically
generated Flash application and a compiled .swf file and whether
performance should be similar in a production environment ? - do
they recommend a limit on the number or type of Flash controls
which are created dynamically from Javascript?
Thanks

are you sperak turkish

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There is any Performance problem with Creation of many Y or Z Programs. plz give clarity regarding this to me......
regards
ganesh

Ganesh,
Can you please mention the context and the purpose of creating these custom program. And application are you referring to?
Regards,
Rohit

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A developer in my company approached us with a question about performance considerations while writing stored procedures or functions that embed XML.
The primary use for this function would be to provide a quick decision given a set of parameters. The function will use the input parameters along with some simple calculations and DB lookups to come up with an answer. These parameters will be stored in the database. Potentially even more parameters that are currently represented in the xml will be available in the DB and therefore could be looked up by the function.
My biggest question is if this way of using XML as an input parameter introduces any performance considerations or concerns for storage/bandwidth etc.
Thank you
Edited by: user8699561 on May 19, 2010 9:24 AM

user8699561 wrote:
A developer in my company approached us with a question about performance considerations while writing stored procedures or functions that embed XML.
The primary use for this function would be to provide a quick decision given a set of parameters. The function will use the input parameters along with some simple calculations and DB lookups to come up with an answer. These parameters will be stored in the database. Potentially even more parameters that are currently represented in the xml will be available in the DB and therefore could be looked up by the function.
My biggest question is if this way of using XML as an input parameter introduces any performance considerations or concerns for storage/bandwidth etc.
Thank you
Edited by: user8699561 on May 19, 2010 9:24 AMStorage/bandwith will be determined regarding the size of the XML doc, but there are ways to minimize those to the minimum (binary XML support in JDBC eg.). Performance overhead in general...eh..."it depends" (how you set it up)...

Performance Impact with OR concatenation / Inlist Iterator

Hello guys,
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The function of both is the "same":
1) Concatenation (OR-processing)
SELECT * FROM emp WHERE mgr# = 1 OR job = ‘YOURS’;- Similar to query rewrite into 2 seperate queries
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2) Inlist Iterator
SELECT * FROM dept WHERE d# in (10,20,30);- Iteration over enumerated value-list
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- Same as concatenation of 3 “OR-red” values
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Thanks and Regards
Stefan

The note is very misleading and far from complete; but there is one critical point of difference that you need to observe. It's talking about using a tablescan to deal with an IN-list (and that's NOT "in-list iteration"), my comments start by saying "if there is a suitable indexed access path."
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Remember, Metalink is not perfect; most of it is just written by ordinary people who learned about Oracle in the normal fashion.
Quick example to demonstrate the difference between concatenation and iteration:
drop table t1;
create table t1 as
select
     rownum     id,
     rownum     n1,
     rpad('x',100)     padding
from
     all_objects
where
     rownum <= 10000
create index t1_i1 on t1(id);
execute dbms_stats.gather_table_stats(user,'t1')
set autotrace traceonly explain
select
     /*+ use_concat(t1) */
     n1
from
     t1
where
     id in (10,20,30,40,50,60,70,80,90,100)
set autotrace offThe execution plan I got from 8.1.7.4 was as follows - showing the transformation to a UNION ALL - this is concatenation and required 10 query block optimisations (which were all done three times):
Execution Plan
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=20 Card=10 Bytes=80)
   1    0   CONCATENATION
   2    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
   3    2       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
   4    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
   5    4       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
   6    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
   7    6       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
   8    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
   9    8       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
10    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
11   10       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
12    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
13   12       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
14    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
15   14       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
16    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
17   16       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
18    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
19   18       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)
20    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=2 Card=1 Bytes=8)
21   20       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=1 Card=1)This is the execution plan I got from 9.2.0.8, which doesn't transform to the UNION ALL, and only needs to optimise one query block.
Execution Plan
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=3 Card=10 Bytes=80)
   1    0   INLIST ITERATOR
   2    1     TABLE ACCESS (BY INDEX ROWID) OF 'T1' (Cost=3 Card=10 Bytes=80)
   3    2       INDEX (RANGE SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=2 Card=10)Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk

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@dynamoxxx

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I only recently joined, but have been using Logic ever since I learned to engineer my own music.
I was wonderring if anyone here performing live with Logic?
I have been using this programm since version 4 and ever so happy with it as far as the recording in the studio is concerned. However the time has come to try and play it all out live.
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To procure space I'm suggested to use below command on primary database in log shipping and I just want
to clarify whether it has any performance impact on primary database in log shipping and also is it a recommended practice to use the below command
in regular intervals in
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"DBCC
SHRINKFILE ('CommonDB_LoadTest_log', 2048, NOTRUNCATE)"
Regards,
Kalyan
----Learners Curiosity Never Ends----

Hi Kalyan \ Shanky
I was not clear in linked conversation so adding some thing :
As per http://msdn.microsoft.com/en-us//library/ms189493.aspx
----->TRUNCATEONLY is applicable only to data files.
BUT
As per : http://technet.microsoft.com/en-us/library/ms190488.aspx
TRUNCATEONLY affects the log file.
And i also tried , it does works.
Now Truncateonly : Releases all free space at the end of the file to the operating system but does not perform any page movement inside the file. The data file is shrunk only to the last allocated extent. target_percent is ignored if specified
with TRUNCATEONLY.
So
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2. If you clear unsued space it will not touch existing data. no performance issue
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4. Shrinking log file is not recommeded if its again and again reaching to same size . Until unless you have space crunch
Thanks Saurabh Sinha
http://saurabhsinhainblogs.blogspot.in/
Please click the Mark as answer button and vote as helpful
if this reply solves your problem

Performance concern with directory server implementation

performance concern with directory server implementation
I first posted this at metalink forum, and was suggested to post it here instead.
Hi,
I'd like to get any feedback regarding performance of oracle directory server implementation. Below is what I copy&patested from 9i Net Services Administrator's Guide, I found no 'directory server vendor documentation', so anything regarding this is welcome too.
Performance
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Shannon

Shannon,
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c) oracle net services
http://download-west.oracle.com/docs/cd/B10501_01/network.920/a96579/products.htm#1005697
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--Olaf

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We have a Oracle 9i install need help to create a DB.
Required to know the Physical Database Design Steps & Performance Considerations.
like
1-Technical consideration of DB as per server capacity. how to calculate..?
2- What will be the best design parameter for DB...?
Can you please help how to do that. Any metalink ID help to get those information.
thanks
kishor

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CPU and Memory
What kind of Storage
What is the Network like?
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Performance Issue with subtemplates

Hi,
I am working on subtemplates and my requirement needs a single main template which calls several localization specific subtemplates (A localization may have many subtemplates of its own, For example: US_subtemp1, US_subtemp2,US_subtemp3... similarly other localizations).
I would like to know is there any performance issue associated with the calls made to the subtemplates and on how this performance hit can be minimized.
Regards,
Arvind

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Regards,
Arvind
Edited by: user779004 on Jan 27, 2009 8:37 PM

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Hi, All
While I have a customization table cell(three row two collumn at single cell, using the Java method will be not easy to mantain), I using the fx:root FXML. But my table have thousands of tableView cells need to be rendered. If everytime cellFactory paint the cell I load the cell from FXML, the IO usage will very high, leading to the poor rending performance. Is there have any better method that I can defined customorize cell?

Post a short executable sample which illustrates your performance consideration and maybe somebody will post back with a better performing solution.

Any performance considerations with FABridge?

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