Performance of Sun's J2EE1.4

Hi all,
I'm currently building a prototype on the Sun J2EE Server 1.4 to use some of the new features in the 1.4 to solve a problem that's currently a bottleneck in our current 1.3 solution.
I wonder if you have some impressions about the performance of Sun's J2EE1.4 compared to JBoss 3.2.x or Weblogic 8.1.
It really doesn't have to be as fast as the others, but if it's 10x slower, I'm in trouble as we want a 10x improvement in performance with the new solution. (Of course, if Sun's J2EE impl. is 10x slower than the others and I still achieve 10x improvement just sit back and wait until JBoss 4.0 is out! :0)
Any opinions/observations/impressions?
-regards,
Gerard.

Hi Binod,
Currently we are using a clumsy legacy implementation to go to an external system that is synchronized everywhere and for everything.
I'm trying to replace this interface by a connector (see the relation with my other posts :-) and my plan is to take advantage of the connection pooling and re-use offered by the container. (Now a TCP connection/bean is created). The communication with the external (real time) system is async bi-directional (formely solved by bridging the incoming msg to JMS), hence my need for a JCA 1.5 connector.
My question regarding the AppServer performance is in general terms. I remember the J2EE1.3 RI being very slow when compared to Weblogic, but given that Sun is proposing the 1.4 RI as the developer edition of the full-fledged J2EE server, I expect it will do much better in this regard.
Kind regards,
Gerard.

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I have and old Sun Fire 280R with two 750 Mhz Processors, 3 GB Ram, and an A1000 Storage.
Thanks a lot,
Andres.

AYacopino wrote:
Somebody knows which is the best Operation System to deploy the Sun Java Communication Suite? in performance terms?Solaris 10 by far for several reasons:
-> improved overall performance (kernel/networking level)
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Regards,
Shane.

Poor Performance of Sun One Web Server 6.0 SP6

We are running on an E450 with 2GB of memory, Solaris 8 2/02 with Recommended and Security Patch Cluster from 31 Jul 03, Sun One Web Server 6.0 SP6, Macromedia ColdFusion 5, JDK 1.4.1_02. We are seeing intermittent (three or four times a day) performance problems, extremely poor response time.
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set shmsys: shminfo_shmmax = 2147483647
set shmsys: shminfo_shmmin = 1
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We are using Sun v40z machines with built in LSI RAID controller (RAID level 1). I was wondering about the performance of RAID on these machines. Our application does a lot of I/O (mainly random and sequential reads). Since we are using a RAID-1 system with two disks, I expect the performance to be good, but it is not, and it seems that all read requests are served from one disk. We are running RedHat Linux 4.
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I have conducted the same experiment on a different machine (Linux desktop, non-Sun, without-RAID), and I was able to read 75-80K blocks per second with two parallel read processes.
I am using:
time dd of=/dev/null count=5000000 bs=16k if=file1.txt
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thanks in advace,
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Questionable performance of Sun Storagetek 6140

Hi
I've got StorageTek 6410 with 16 FC 15K 68GB disks connected to Sun M4000 (SPARC) with two 4Gbps Qlogic HBAs (2460). OS is Solaris 10 5/09.
I tried everything - creating RAID1, RAID5, RAID10, block size 256, 512k volumes, ZFS or UFS. I'm getting maximum average write performance of 80-160MB/s.
Tested with dd and iostat. In another thread someone claims that it has to be at least 260MB/s. What's wrong? Maybe dd is not good for testing? What parameters can i tune?
TIA
Edited by: wdmadm on Aug 26, 2009 8:52 AM

Following example is RAID5 volume of 8 disks and 512 KB block size, but im getting similiar results with RAID10 volumes:
I'm starting dd:
ex.
dd if=/dev/zero of=test2 bs=512kand using iostat on another terminal
iostat command:
iostat -xnpmY c3t600A0B8000267DD0000046934A94BB79d0 1example iostat output:
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Performance Hotspot: sun.awt.GlobalCursorManager._updateCursor

I am trying to optimize a Swing-based application that has custom Swing components. When I run OptimizeIt, I get a hotspot in the sun.awt.GlobalCursorManager._updateCursor method. This method appears to be taking up 20-30% of the processing time when I do a simple operation with the GUI, and I can't figure out why.
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The hotspot is somewhere in this method, not in any calls this method makes. Looking at it, the only thing I see that might be causing the problem would be the synchronization at the beginning of the method. Everything else looks fairly simple, or includes calls to other methods that would appear in the profiler.
All the processing for the application is running on the AWT-EventQueue-0 thread, so I don't understand why the synchronized part would have a problem.
Does anyone know what may be causing this problem? Also, if someone has the updated 1.4.2 source for this class, it might help me figure out what the problem is.
Thanks.
.....trevor

Oh, also, since this might be part of the OS-specific code, I am running on Windows NT SP 6a with JDK 1.4.2.
....trevor

Performance on sun

Hi ,
i have sun 280 that runs oracle 9i .
I get poor poor performance on it comparing to just "regular" pc machine that runs oracle.
io wait of up to 50%
only one user logged to the system for testing.
doing loop of insert 100000 takes 3 minutes on sun and about 20 sec on windows.
is there a known problem with sunfire internal disks ?? and Oracle ?
I came across such thing but nothing solid so far.
thanks

This is not a COMMIT bottleneck, otherwise we would see LOG FILE SYNC wait event. I referred to this technical information:
Symptoms
You are observing poor performance while Oracle writes to redolog files:
1. Statspack report shows very high wait time for event 'log buffer space'.
2. alert.log shows increased time between log switches.
3. Disk activity shows high IO wait and poor throughput.
4. The system may or may not be implementing RAID.
Changes
Making the below changes do not help :
Increasing the value of log_buffer.
Setting disk_asynch_io=FALSE
Cause
The problem occurs because the write cache on the disk has been disabled.
The write cache is an area of temporary volatile storage that has a faster access time than the actual drive media. Its purpose is to increase throughput.
In case of RAID implementation, this cache is primarily a mechanism to defer writes, so that the overhead of calculating and writing parity information can be done by the system, while it
is relatively less busy.
Fix
Switching on the disk write cache will resolve the problem.
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Performance Tools Sun Studio 12 under Ubuntu

I want to use the hardware counter under a x86-64 Ubuntu (Feisty). But the system isn't supported by the performance analyzer and the hardware counter aren't available. Exist any opportunity to use it or should i install red hat enterprise or suse enterprise. Gives there any free OS where the HW counters working?

You can try Sun Studio 12 on any machine you want. The 'unsupported' means: it's your choice, you are at your own risk, you are on your own. However, we still would be willing to hear from you, we would also help if we can. Your input and feedback are welcome!
You can even file RFE on bugs.sun.com if you feel the performance on Ubuntu is better, worth recommended, worth to be added to the 'supported platform' list, etc. Voice of Customer is always welcome too!
Rose

Compare performance SUN SPARC IV+ and SPARC VII

Anyone have experience on SUN Sparc VII and Compare Performance between SUN Sparc IV+ and Sparc VII ?
Thank.

read http://blogs.sun.com/mrbenchmark/
particularly http://blogs.sun.com/mrbenchmark/entry/oltp_performance_of_the_sun

Sun T2 chips vs SPARC64 VI/VII chips for Oracle database servers

We have recently found poor performance of Sun T5240 servers where (against previous V series servers with similar gross I/O capabilities on the disk volume)the timings for the recovery of the database, and the subsequent re-build of the tables and materialised views, are variable from slightly worse to atrocious. Given that the clock-speed is similar,and all significant oracle database parameters are the same, we couldn't see why these processes should take longer on the T5240. The statistics report from the database showed no I/O bottleneck on the new machine, instead it showed raised CPU times for some of the key slow statements.
We found the attached oracle metalink document (ref 781763.1) <<Sun_T2_slow_for Oracle_DB.html>>
Seems to be that if you can't control the content of large long-running SQL statements to parallelise them, don't buy a T-series box as the multithreading capability will work against you.
Therefore we are looking at new servers to run other similar large Oracle apps and appear to have a number of choices within a similar price range
Notably
M3000 - 1 x SPARC VII CPU (quad core procesor)
M4000 - 2 x SPARC VI CPU (dual core processor)
as opposed to the
T5240 - 2 x T2 CPU (8 core processor)
Question is which of these CPU/Core combinations works best...are there performance figures? What's the difference between CPU's and number of cores?
Any benchmarks to help us decide? Anyone experienced similar or tried these different combos for themselves?

We tested a T5210 as a database server (running Ingres, not Oracle) and our batch performance was roughly equivalent to a dual CPU UltraSPARC III V480. Our guess is that the performance hit came from having a relatively small cache shared across so many threads. Like you, we're looking at using the M3000 or M4000 in preference.

Experiences with Sun T2000 servers on SAP systems

Hello,
We are currently involved in a project to migrate our SAP systems from a Windows 2003 to a Solaris 10 platform. Our application server layer will be based on Sun T2000 servers for both ABAP and Java stacks.
I would be interested in hearing from anyone using T2000s in the application server layer to understand their perception of the performance of these systems.
Thanks in advance,
Brendan Byrne

We have actually solved the issues sourrounding performance on sun multi threaded servers.
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Then sap seems to fly.
This is fully supported by the way.
Just set this up with NW7 on a T2000 and some T5120's
Basically what occurs is that you setup SAP on one zone.
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SAP runs as one thread within the zone, but the zone then allocates this thread across all the cpus.
Works like a dream,
Regards
James
Edited by: James Ibbotson on Sep 5, 2008 1:58 PM

Sun JPI support

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Any news/thoughts on the support of Sun JPI with MS IE? The SOD on OTN states this is targeted for "patch 2". Is this the forthcoming 10.1.2 release?
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Thanks for all the answers.
We're currently running into two issues with v1.5:
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Oracle Discoverer Plus Performance

When trying to connect to the Discoverer on the Web, we need to wait a very long time(about 5-10 minutes!)
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It seems like the access to the web pages on the server or something to do with the JAVA is not working properly.
We tried to address the link for the discoverer plus with the server name and also with its IP address but the result was the same.
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The station from which we are running it, is a very strong one so it is not a problem of shortage in memory etc..
Do you have any idea how to deal with this problem?

Hi Hadar,
In general, I would recommend making sure the JRE being used is compliant (see these Knowledge Base articles):
Recommended Client Java Plug-in (JVM/JRE) For Discoverer Plus 10g (10.1.2) [ID 465234.1],
Discoverer 10g (10.1.2) Plus Applet User Interaction Has Slow Performance With Sun Java Plug-in 1.6.0_03 or Higher [ID 747189.1],
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Patrick

What Sun Studio 12 patches are included in Sun Studio 12 Update 1?

I can't seem to find a bug list or patch list for Sun Studio 12 Update 1. Can someone provide a link or list of what was fixed?
Secondary, how do I know I have Sun Studio 12 Update 1 installed? Does CC -V say 5.9.1?
-kto

I'm not sure about your bug list or patch list question, but on your second question you can use the "version" command.
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% version sunstudio12.1/bin/CC
version of "sunstudio12.1/bin/CC": Sun C++ 5.10 SunOS_sparc 2009/05/02
You can also just type "version" and that will list all the
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Sun Studio 12 update 1 C++ Compiler
Sun Studio 12 update 1 Tools.h++ 7.1
Sun Studio 12 update 1 C++ Standard 64-bit Class Library
Sun Studio 12 update 1 Garbage Collector
Sun Studio 12 update 1 Fortran 95
Sun Studio 12 update 1 Debugging Tools (including dbx)
Sun Studio 12 update 1 IDE
Sun Studio 12 update 1 Performance Analyzer (including collect, ...)
Sun Studio 12 update 1 Performance Library
Sun Studio 12 update 1 Scalapack
Sun Studio 12 update 1 LockLint
Sun Studio 12 update 1 Building Software (including dmake)
Sun Studio 12 update 1 Documentation Set

Installation problems on Mandrake 10

Hi,
My first attempt to install was failing due to the "id" problem. Did the soft link from /bin to /usr/bin and the install starts, but it fails after a while (the install.log contents are at the end of this message).
I nevertheless tried to start the Creator and it starts all right, but I cannot help feeling that there might be critical parts missing (since the installation didn't finish). Anyone has any idea why this happens and what (if anything critical) is missing?
Thanks,
Jean
install.log contents:
(Apr 13, 2004 2:58:24 AM), Setup.product.install, com.ibm.wizard.platform.linux.LinuxProductServiceImpl, msg1, installing Files (bean46)
(Apr 13, 2004 3:01:11 AM), Setup.product.install, com.ibm.wizard.platform.linux.LinuxProductServiceImpl, msg1, installing Files (bean176)
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(Apr 13, 2004 3:01:35 AM), Setup.product.install, com.sun.installer.InstallApplicationServerAction, msg1, Installing Sun Java(TM) System Application Server...
exitcode = 127
(Apr 13, 2004 3:01:35 AM), Setup.product.install, com.sun.installer.InstallApplicationServerAction, err, Error occured while installing [127] -> /opt/Creator/_uninst/install.sh /opt/Creator/_uninst statefile ../install.log /tmp
(Apr 13, 2004 3:01:35 AM), Setup.product.install, com.sun.installer.InstallApplicationServerAction, err, Error occured while Installing Sun Java(TM) System Application Server....
(Apr 13, 2004 3:01:36 AM), Setup.product.install, com.sun.installer.InstallApplicationServerAction, msg1, Finished
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(Apr 13, 2004 3:01:55 AM), Setup.product.install, com.ibm.wizard.platform.linux.LinuxProductServiceImpl, wrn, The installer could not successfully add the product information into the RPM database. Installation will continue as this is not critical to the installation of the product.
(Apr 13, 2004 3:01:58 AM), Setup.product.install, com.ibm.wizard.platform.linux.LinuxProductServiceImpl, wrn, The installer could not successfully add the product information into the RPM database. Installation will continue as this is not critical to the installation of the product.
(Apr 13, 2004 3:02:15 AM), Setup.product.install, com.sun.installer.PostInstallWizardAction, err, Error setting pointbase port
(Apr 13, 2004 3:02:16 AM), Setup.product.install, com.sun.installer.PostInstallWizardAction, err, Skipping PostInstall actions due to Application Server installation failure with exitcode: -500
-----------------------------------------------------------------------------------

I have uninstalled and reinstalled three times. Two of the times I had items that were missing.
When you look at your start/program menu and choose Sun Microsystems/J2EE1.4 sdk you should have the ability to start your pointbase database and start the application server. If those options are not on the menu then your install did not finish. I have had one install where the "Start Application Server" did not show on the menu. Also I found that when you start the IDE at the end of the install you are less likely to have problems getting your application server to run.

Performance of Sun's J2EE1.4

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