OEPE Performance Issues in Eclipse 3.5 / Vista

Hello,
We are experiencing some performance issues handling larger DML files:
1. It takes about a 45 - 60 sec to open 6.6MB DML file (see link for source below) in Eclipse 3.5 on Lenovo ThinkPad W500 Core Duo 2 laptop with 3GB memory (1 year old and still considered a pretty fast laptop)
2. Executing this file from Eclipse IDE just hangs with a spinning Vista wheel. I have to kill and restart the IDE.
Here is the error I get after waiting for the spinning wheel to stop for a while:
"Unhandled event loop exception
Java heap space"
Then Eclipse shows this message:
"An out of memory error has occurred. Consult the "Running Eclipse"section of the read me file for information on preventing this kind of error in the future. You are recommended to exit the workbench..."
******** 2/28 Update:
I've changed the Xmx parameter to -Xmx1024 as suggested. It didn't give me the error this time, but it still took about 1.5 min to open this SQL file in Eclipse and another 10 min waiting before the INSERT statements started to execute, though they never reached the end. Other operations on this file are very slow too (e.g. right-clicking and selecting a menu item). It seems that handling larger files is currently not implemented as efficient as it could be. Maybe it's not buffered?
The DDL/DML scripts to replicate this issue can be downloaded from http://colddata.zftp.com/tmp/dml-ddl.zip
Thank you.

I've done some preliminary research into this performance bottleneck. There are several issues involved: DTP's scrapbook handles large strings without buffer; our plsql parser parses large strings without buffer; and we attempt to execute more than 40000 insert statements one by one.
We're near the end of our current release cycle. With issues in this scale, we have to wait until our next release to address it.
Shenxue

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    Intro : I tested my RAID 0 556GB (LSI MegaRAID 9260-8i SATA3 6GB/s 5 disks with Fastpath Chip Installed) to know if I can reach the maximum % disk usage (0% idle Time)
    The result : As you can see in picture 2, yes, I can get the max of my drive at ~ 1.2 Gb/sec read/write steady !
    Comment : I put 3 IO (cpu, disk, ram) on the graph of my computer during the test to see the impact of transfering many Go of data during ~10 sec...
    (picture 2)
    Now, I know my limits !  It's time to enter deeper in the subject !
    PPBM5 (H.264) Result
    I rendered the sequence (H.264) using Adobe Media Encoder.
    The result :
    My CPU is not used at 100%, the turn around 50%
    My Disk is totally idle !
    All the process usage are idle except process of (Adobe Media Encoder)
    The transfert rate seem to be a wave (up and down).  Probably caused by (Encrypt time....  write.... Encrypt time.... write...)  // It's ok, ~5Mb/sec during transfert rate !
    CPU Power management give 100% of clock to CPU during the encoding process (it's ok, the clock is stable during process).
    RAM, more than enough !  39 Go RAM free after the test !  // Excellent
    ~65 thread opened by Adobe Media Encoder (Good, thread is the sign that program try to using many cores !)
    GPU Load on card seem to be a wave also ! (up and down)  ~40% usage of GPU during the process of encoding.
    GPU Ram get 1.2Go of RAM (But with GTX 680, no problem and Quadro 6000 with 6 GB RAM, no problem !)
    Comment/Question : CPU is free (50%), disks are free (99%), GPU is free (60%), RAM is free (62%), my computer is not pushed at limit during the encoding process.  Why ????  Is there some time delay in the encoding process ?
    Other : Quadro 6000 & GTX 680 gives the same result !
    (picture 3)
    PPBM5 (Disk Test) Result (RAID LSI)
    I rendered the sequence (Disk Test) using Adobe Media Encoder on my RAID 0 LSI disk.
    The result :
    My CPU is not used at 100%
    My Disk wave and wave again, but far far from the limit !
    All the process usage are idle except process of (Adobe Media Encoder)
    The transfert rate wave and wave again (up and down).  Probably caused by (Buffering time....  write.... Buffering time.... write...)  // It's ok, ~375Mb/sec peak during transfert rate !  Easy !
    CPU Power management give 100% of clock to CPU during the encoding process (it's ok, the clock is stable during process).
    RAM, more than enough !  40.5 Go RAM free after the test !  // Excellent
    ~48 thread opened by Adobe Media Encoder (Good, thread is the sign that program try to using many cores !)
    GPU Load on card = 0 (This kind of encoding is GPU irrelevant)
    GPU Ram get 400Mb of RAM (No usage for encoding)
    Comment/Question : CPU is free (65%), disks are free (60%), GPU is free (100%), RAM is free (63%), my computer is not pushed at limit during the encoding process.  Why ????  Is there some time delay in the encoding process ?
    (picture 4)
    PPBM5 (Disk Test) Result (Direct in RAMDrive)
    I rendered the same sequence (Disk Test) using Adobe Media Encoder directly in my RamDrive
    Comment/Question : Look at the transfert rate under (picture 5).  It's exactly the same speed than with my RAID 0 LSI controller.  Impossible !  Look in the same picture the transfert rate I can reach with the ramdrive (> 3.0 Gb/sec steady) and I don't go under 30% of disk usage.  CPU is idle (70%), Disk is idle (100%), GPU is idle (100%) and RAM is free (63%).  // This kind of results let me REALLY confused.  It's smell bug and big problem with hardware and IO usage in CS6 !
    (picture 5)
    PPBM5 (MPEG-DVD) Result
    I rendered the sequence (MPEG-DVD) using Adobe Media Encoder.
    The result :
    My CPU is not used at 100%
    My Disk is totally idle !
    All the process usage are idle except process of (Adobe Media Encoder)
    The transfert rate wave and wave again (up and down).  Probably caused by (Encoding time....  write.... Encoding time.... write...)  // It's ok, ~2Mb/sec during transfert rate !  Real Joke !
    CPU Power management give 100% of clock to CPU during the encoding process (it's ok, the clock is stable during process).
    RAM, more than enough !  40 Go RAM free after the test !  // Excellent
    ~80 thread opened by Adobe Media Encoder (Lot of thread, but it's ok in multi-thread apps!)
    GPU Load on card = 100 (This use the maximum of my GPU)
    GPU Ram get 1Gb of RAM
    Comment/Question : CPU is free (70%), disks are free (98%), GPU is loaded (MAX), RAM is free (63%), my computer is pushed at limit during the encoding process for GPU only.  Now, for this kind of encoding, the speed limit is affected by the slower IO (Video Card GPU)
    Other : Quadro 6000 is slower than GTX 680 for this kind of encoding (~20 s slower than GTX).
    (picture 6)
    Encoding single clip FULL HD AVCHD to H.264 Result (Premiere Pro CS6)
    You can look the result in the picture.
    Comment/Question : CPU is free (55%), disks are free (99%), GPU is free (90%), RAM is free (65%), my computer is not pushed at limit during the encoding process.  Why ????   Adobe Premiere seem to have some bug with thread management.  My hardware is idle !  I understand AVCHD can be very difficult to decode, but where is the waste ?  My computer want, but the software not !
    (picture 7)
    Render composition using 3D Raytracer in After Effects CS6
    You can look the result in the picture.
    Comment : GPU seems to be the bottle neck when using After Effects.  CPU is free (99%), Disks are free (98%), Memory is free (60%) and it depend of the setting and type of project.
    Other : Quadro 6000 & GTX 680 gives the same result in time for rendering the composition.
    (picture 8)
    Conclusion
    There is nothing you can do (I thing) with CS6 to get better performance actually.  GTX 680 is the best (Consumer grade card) and the Quadro 6000 is the best (Profressional card).  Both of card give really similar result (I will probably return my GTX 680 since I not really get any better performance).  I not used Tesla card with my Quadro, but actually, both, Premiere Pro & After Effects doesn't use multi GPU.  I tried to used both card together (GTX & Quadro), but After Effects gives priority to the slower card (In this case, the GTX 680)
    Premiere Pro, I'm speechless !  Premiere Pro is not able to get max performance of my computer.  Not just 10% or 20%, but average 60%.  I'm a programmor, multi-threadling apps are difficult to manage and I can understand Adobe's programmor.  But actually, if anybody have comment about this post, tricks or any kind of solution, you can comment this post.  It's seem to be a bug...
    Thank you.

    Patrick,
    I can't explain everything, but let me give you some background as I understand it.
    The first issue is that CS6 has a far less efficient internal buffering or caching system than CS5/5.5. That is why the MPEG encoding in CS6 is roughly 2-3 times slower than the same test with CS5. There is some 'under-the-hood' processing going on that causes this significant performance loss.
    The second issue is that AME does not handle regular memory and inter-process memory very well. I have described this here: Latest News
    As to your test results, there are some other noteworthy things to mention. 3D Ray tracing in AE is not very good in using all CUDA cores. In fact it is lousy, it only uses very few cores and the threading is pretty bad and does not use the video card's capabilities effectively. Whether that is a driver issue with nVidia or an Adobe issue, I don't know, but whichever way you turn it, the end result is disappointing.
    The overhead AME carries in our tests is something we are looking into and the next test will only use direct export and no longer the AME queue, to avoid some of the problems you saw. That entails other problems for us, since we lose the capability to check encoding logs, but a solution is in the works.
    You see very low GPU usage during the H.264 test, since there are only very few accelerated parts in the timeline, in contrast to the MPEG2-DVD test, where there is rescaling going on and that is CUDA accelerated. The disk I/O test suffers from the problems mentioned above and is the reason that my own Disk I/O results are only 33 seconds with the current test, but when I extend the duration of that timeline to 3 hours, the direct export method gives me 22 seconds, although the amount of data to be written, 37,092 MB has increased threefold. An effective write speed of 1,686 MB/s.
    There are a number of performance issues with CS6 that Adobe is aware of, but whether they can be solved and in what time, I haven't the faintest idea.
    Just my $ 0.02

  • Performance Issue for BI system

    Hello,
    We are facing performance issues for BI System. Its a preproductive system and its performance is degrading badly everyday. I was checking system came to know program buffer hit ratio is increaasing everyday due to high Swaps. So asked to change the parameter abap/buffersize which was 300Mb to 500Mb. But still no major improvement is found in the system.
    There is 16GB Ram available and Server is HP-UX and with Netweaver2004s with Oracle 10.2.0.4.0 installed in it.
    The Main problem is while running a report or creating a query is taking way too long time.
    Kindly help me.

    Hello SIva,
    Thanks for your reply but i have checked ST02 and ST03 and also SM50 and its normal
    we are having 9 dialog processes, 3 Background , 2 Update and 1 spool.
    No one is using the system currently but in ST02 i can see the swaps are in red.
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    Nametab (NTAB)                                                                                0
       Table definition     99,60     6.798                                                   20.000                                            29.532    153.221
       Field definition     99,82      31.562        784                 2,61           20.000      6.222          31,11          17.246     41.248
       Short NTAB           99,94     3.625      2.446                81,53          5.000        2.801          56,02             0            2.254
       Initial records      73,95        6.625        998                 16,63          5.000        690             13,80             40.069     49.528
                                                                                    0
    boldprogram                97,66     300.000     1.074                 0,38           75.000     67.177        89,57           219.665    725.703bold
    CUA                    99,75         3.000        875                   36,29          1.500      1.401          93,40            55.277      2.497
    Screen                 99,80         4.297      1.365                 33,35          2.000      1.811          90,55              119         3.214
    Calendar              100,00       488            361                  75,52            200         42              21,00               0            158
    OTR                   100,00         4.096      3.313                  100,00        2.000      2.000          100,00              0
                                                                                    0
    Tables                                                                                0
       Generic Key          99,17    29.297      1.450                  5,23           5.000        350             7,00             2.219      3.085.633
       Single record        99,43    10.000      1.907                  19,41           500         344            68,80              39          467.978
                                                                                    0
    Export/import          82,75     4.096         43                      1,30            2.000        662          33,10            137.208
    Exp./ Imp. SHM         89,83     4.096        438                    13,22         2.000      1.482          74,10               0    
    SAP Memory      Curr.Use %    CurUse[KB]    MaxUse[KB]    In Mem[KB]    OnDisk[KB]    SAPCurCach      HitRatio %
    Roll area               2,22                5.832               22.856             131.072     131.072                   IDs           96,61
    Page area              1,08              2.832                24.144               65.536    196.608              Statement     79,00
    Extended memory     22,90       958.464           1.929.216          4.186.112          0                                         0,00
    Heap memory                                    0                  0                    1.473.767          0                                         0,00
    Call Stati             HitRatio %     ABAP/4 Req      ABAP Fails     DBTotCalls         AvTime[ms]      DBRowsAff.
      Select single     88,59               63.073.369        5.817.659      4.322.263             0                         57.255.710
      Select               72,68               284.080.387          0               13.718.442             0                        32.199.124
      Insert                 0,00                  151.955             5.458             166.159               0                           323.725
      Update               0,00                    378.161           97.884           395.814               0                            486.880
      Delete                 0,00                    389.398          332.619          415.562              0                             244.495
    Edited by: Srikanth Sunkara on May 12, 2011 11:50 AM

  • RE: Case 59063: performance issues w/ C TLIB and Forte3M

    Hi James,
    Could you give me a call, I am at my desk.
    I had meetings all day and couldn't respond to your calls earlier.
    -----Original Message-----
    From: James Min [mailto:jminbrio.forte.com]
    Sent: Thursday, March 30, 2000 2:50 PM
    To: Sharma, Sandeep; Pyatetskiy, Alexander
    Cc: sophiaforte.com; kenlforte.com; Tenerelli, Mike
    Subject: Re: Case 59063: performance issues w/ C TLIB and Forte 3M
    Hello,
    I just want to reiterate that we are very committed to working on
    this issue, and that our goal is to find out the root of the problem. But
    first I'd like to narrow down the avenues by process of elimination.
    Open Cursor is something that is commonly used in today's RDBMS. I
    know that you must test your query in ISQL using some kind of execute
    immediate, but Sybase should be able to handle an open cursor. I was
    wondering if your Sybase expert commented on the fact that the server is
    not responding to commonly used command like 'open cursor'. According to
    our developer, we are merely following the API from Sybase, and open cursor
    is not something that particularly slows down a query for several minutes
    (except maybe the very first time). The logs show that Forte is waiting for
    a status from the DB server. Actually, using prepared statements and open
    cursor ends up being more efficient in the long run.
    Some questions:
    1) Have you tried to do a prepared statement with open cursor in your ISQL
    session? If so, did it have the same slowness?
    2) How big is the table you are querying? How many rows are there? How many
    are returned?
    3) When there is a hang in Forte, is there disk-spinning or CPU usage in
    the database server side? On the Forte side? Absolutely no activity at all?
    We actually have a Sybase set-up here, and if you wish, we could test out
    your database and Forte PEX here. Since your queries seems to be running
    off of only one table, this might be the best option, as we could look at
    everything here, in house. To do this:
    a) BCP out the data into a flat file. (character format to make it portable)
    b) we need a script to create the table and indexes.
    c) the Forte PEX file of the app to test this out.
    d) the SQL staement that you issue in ISQL for comparison.
    If the situation warrants, we can give a concrete example of
    possible errors/bugs to a developer. Dial-in is still an option, but to be
    able to look at the TOOL code, database setup, etc. without the limitations
    of dial-up may be faster and more efficient. Please let me know if you can
    provide this, as well as the answers to the above questions, or if you have
    any questions.
    Regards,
    At 08:05 AM 3/30/00 -0500, Sharma, Sandeep wrote:
    James, Ken:
    FYI, see attached response from our Sybase expert, Dani Sasmita. She has
    already tried what you suggested and results are enclosed.
    ++
    Sandeep
    -----Original Message-----
    From: SASMITA, DANIAR
    Sent: Wednesday, March 29, 2000 6:43 PM
    To: Pyatetskiy, Alexander
    Cc: Sharma, Sandeep; Tenerelli, Mike
    Subject: Re: FW: Case 59063: Select using LIKE has performance
    issues
    w/ CTLIB and Forte 3M
    We did that trick already.
    When it is hanging, I can see what is doing.
    It is doing OPEN CURSOR. But not clear the exact statement of the cursor
    it is trying to open.
    When we run the query directly to Sybase, not using Forte, it is clearly
    not opening any cursor.
    And running it directly to Sybase many times, the response is always
    consistently fast.
    It is just when the query runs from Forte to Sybase, it opens a cursor.
    But again, in the Forte code, Alex is not using any cursor.
    In trying to capture the query,we even tried to audit any statementcoming
    to Sybase. Same thing, just open cursor. No cursor declaration anywhere.==============================================
    James Min
    Technical Support Engineer - Forte Tools
    Sun Microsystems, Inc.
    1800 Harrison St., 17th Fl.
    Oakland, CA 94612
    james.minsun.com
    510.869.2056
    ==============================================
    Support Hotline: 510-451-5400
    CUSTOMERS open a NEW CASE with Technical Support:
    http://www.forte.com/support/case_entry.html
    CUSTOMERS view your cases and enter follow-up transactions:
    http://www.forte.com/support/view_calls.html

    Earthlink wrote:
    Contrary to my understanding, the <font face="courier">with_pipeline</font> procedure runs 6 time slower than the legacy <font face="courier">no_pipeline</font> procedure. Am I missing something? Well, we're missing a lot here.
    Like:
    - a database version
    - how did you test
    - what data do you have, how is it distributed, indexed
    and so on.
    If you want to find out what's going on then use a TRACE with wait events.
    All nessecary steps are explained in these threads:
    HOW TO: Post a SQL statement tuning request - template posting
    http://oracle-randolf.blogspot.com/2009/02/basic-sql-statement-performance.html
    Another nice one is RUNSTATS:
    http://asktom.oracle.com/pls/asktom/ASKTOM.download_file?p_file=6551378329289980701

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