Can System performance degraded by Z development

Hi,
Can system performance degrade by more z development? Is there any idle
ratio with standard system/reports to Z development in % terms?
Regards,
Shail

Z programs are just programs not written by SAP, but added by the customer.
The performance of the Z programs depends on the experience of the Z programmer.
There is no ideal ratio, I just depends how much must be programmed different from the standard.
And oyu should also keep in mind, that if a Z-program replaces a standard program that it will have broader/narrower functionality, so it will need a different amount of time.
There is no optimum defined, you must find out whether something can be done better.
Siegfried

Similar Messages

System performance degrades after server migration ???

Hi Friends,
System performance degrades after we migrate our BW 3.5 Server (Production) from UK to Germany.
for details :
1. Data is coming to Informatica server from Informatica its going to POSDM Server (Point of Sales Data Management) from POSDM we are running pipes and data is coming to BW (Delta Queqe)
so before Server Migration it was taking 2 Hrs to load 4 Million Records
After Server Migration it is taking 4 Hrs.
Please help out to find the reason for this.
Note : Server Ram , Hard Disk , Speed is same on both Servers
Thanks
Asim

Note : Server Ram , Hard Disk , Speed is same on both Servers
Are you cahnge any application or database parameter (the OS and all patch'es are the same?)
How you doing migration? Very low information... Are you check the network configuration are the same( for example check the network speed 1G or 100MB).
Are you trying to analyse the St03N and St04 t-codes?
Regards.

Database performance degrade - delete operation

Hi,
I have a big database. One of the table contains 120 milion records and many tables (more than 50) has referential integrity to this table.
Table structure
Customer (Cust_ID, and other columns). Cust_ID is Primary Key. Other tables has referential integrity to Customer.Cust_ID.
There are around 100 thousand records that have entry only in this (Customer) table. These records are identified and kept in a table Temp_cust(Cust_ID).
I am running a PL/SQL which fetches a Cust_ID from Temp_cust and delete that record from Customer.
It is observed that a delete command takes long time and the whole system performance degrades. Even a on-line service that inserts row into this table looks like almost in hand stage.
The system is 24/7 and I have no option to disable any constraint.
Can someone explain why such a simple operation degrades system performance. Please also suggest how to complete the operation without affecting performance of other operations.
Regards
Karim

Hi antti.koskinen
There is no on delete rule. All are simple
referential integrity.
Like REFERS CUSTOMER (Cust_ID).
Regards,
KarimCan you run the following snippet just to make sure (params are name and owner of the Customer table):
select table_name, constraint_name, constraint_type, delete_rule
from dba_constraints
where r_constraint_name in
       select constraint_name
       from dba_constraints
       where owner = upper('&owner')
       and table_name = upper('&table_name')
       and constraint_type = 'P'
/Also check the last time the table was rebuilt - deletes w/o rebuilds tend to raise the high water mark.

Performance degradation with -g compiler option

Hello
Our mearurement of simple program compiled with and without -g option shows big performance difference.
Machine:
SunOS xxxxx 5.10 Generic_137137-09 sun4u sparc SUNW,Sun-Fire-V250
Compiler:
CC: Sun C++ 5.9 SunOS_sparc Patch 124863-08 2008/10/16
#include "time.h"
#include <iostream>
int main(int argc, char ** argv)
 for (int i = 0 ; i < 60000; i++)
 int *mass = new int[60000];
 for (int j=0; j < 10000; j++) {
 mass[j] = j;
 delete []mass;
 return 0;
}Compilation and execution with -g:
CC -g -o test_malloc_deb.x test_malloc.c
ptime test_malloc_deb.xreal 10.682
user 10.388
sys 0.023
Without -g:
CC -o test_malloc.x test_malloc.c
ptime test_malloc.xreal 2.446
user 2.378
sys 0.018
As you can see performance degradation of "-g" is about 4 times.
Our product is compiled with -g option and before shipment it is stripped using 'strip' utility.
This will give us possibility to open customer core files using non-stripped exe.
But our tests shows that stripping does not give performance of executable compiled without '-g'.
So we are losing performance by using this compilation method.
Is it expected behavior of compiler?
Is there any way to have -g option "on" and not lose performance?

In your original compile you don't use any optimisation flags, which tells the compiler to do minimal optimisation - you're basically telling the compiler that you are not interested in performance. Adding -g to this requests that you want maximal debug. So the compiler does even less optimisation, in order that the generated code more closely resembles the original source.
If you are interested in debug, then -g with no optimisation flags gives you the most debuggable code.
If you are interested in optimised code with debug, then try -O -g (or some other level of optimisation). The code will still be debuggable - you'll be able to map disassembly to lines of source, but some things may not be accessible.
If you are using C++, then -g will in SS12 switch off front-end inlining, so again you'll get some performance hit. So use -g0 to get inlining and debug.
HTH,
Darryl.

Degraded system performance - possibly caused by external LaCie HD

I'm stumped over what to do to solve a serious performance problem with my iMac. Here's the setup:
Prior to today, I've been running:
An iMac Intel Core 2 Duo 17" (late 2006). The guts of it all OEM: 1 GB (2x512) RAM, 250 GB HD, SuperDrive.
A 500 GB LaCie USB 2.0 External HD.
Two external optical drives; one that can read/burn CDs and one that can read//burn DVDs/CDs. Both of these are connected via FireWire
Operating system: Mac OS 10.4.x
Network: Wireless Airport on iMac to DLink wireless router to Sympatico DSL. Using OpenDNS
Over the last few weeks, system performance (and by this, I mean basic tasks like copying a file or selecting a menu option or switching between apps) has degraded to the point where it could take several seconds simply switching from one app to another. No new software or devices were added over this time.
Running Apple's Hard Disk Utility, I discovered some "Minor" problems on the internal hard drive. I booted up in safe mode, which automatically forces a disk repair, and, upon running disk utility again, the disk appears fine.
Performance problems persisted.
I ran disk utility on the external drive. No problems.
Earlier this week, I decided to upgrade the OS.
The upgrade took 5+ hours to install. (I'd heard it can take a while but 5 hours seems silly).
Performance problems persisted.
Last night, I loaded everything I needed on the internal drive and backed up to the external drive. THen I proceeded to do a clean install of the OS 10.5.6. I ran Software Update to get the latest Java machine and other updates.
Still got problems. (Copying 2 GB of files I'd backed up on my external drive back to the internal drive took more than 2 hours! via USB 2.0)
Ran Hard Disk Utility again. Everything's fine. Still have performance problems.
Shut power down on all external drives and re-booted.
Ah-ha! Now we're gettin' somewhere. Performance seems normal. System is responding to basic commands in the what seems like a normal way.
But I need those external drives. First bright idea: Perhaps it's the cheap Dyntech 5-port USB hub that's gumming things up. To test, I disconnected the hub and connected the LaCie external drive directly to the iMac.
Back to the same old problem.
Ok -- so it seems pretty clear that the iMac and the LaCie drive, which once got along famously, are now like an old married couple -- grumpy and slow to respond to each other's requests. Again -- neither the LaCie drive nor the iMac internal drive report any problems via Hard Disk Utility. Files are being successfully copied back and forth albeit at a mind-numbingly slow speed. But for all intents and purposes, so long as the iMac is attached to the LaCie drive, it has all the zip and functional usefulness of my old Centris 610.
Any and all suggestions gratefully welcomed.

True unless you frequently attach and detach the drive so that indexing never is completed. To see if this may be the case with the drive attached, open Spotlight preferences, click on the Privacy tab, then drag the drive's icon into the list.
You can also try a few other things, but start by downloading and installing AppleJack - VersionTracker or MacUpdate. Read instructions and run the program to do some cleanup. For other maintenance tips see:
Kappy's Personal Suggestions for OS X Maintenance
For disk repairs use Disk Utility. For situations DU cannot handle the best third-party utilities are: Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible. TechTool Pro provides additional repair options including file repair and recovery, system diagnostics, and disk defragmentation. TechTool Pro 4.5.1 or higher are Intel Mac compatible; Drive Genius is similar to TechTool Pro in terms of the various repair services provided. Versions 1.5.1 or later are Intel Mac compatible.
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts had been significantly reduced in Tiger and Leopard.
OS X automatically defrags files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive. As for virus protection there are few if any such animals affecting OS X. You can protect the computer easily using the freeware Open Source virus protection software ClamXAV. Personally I would avoid most commercial anti-virus software because of their potential for causing problems.
I would also recommend downloading the shareware utility TinkerTool System that you can use for periodic maintenance such as removing old logfiles and archives, clearing caches, etc.
For emergency repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the commandline. Note that AppleJack 1.5 is required for Leopard.
When you install any new system software or updates be sure to repair the hard drive and permissions beforehand. I also recommend booting into safe mode before doing system software updates.
Get an external Firewire drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Retrospect Desktop (Commercial - not yet universal binary)
2. Synchronize! Pro X (Commercial)
3. Synk (Backup, Standard, or Pro)
4. Deja Vu (Shareware)
5. Carbon Copy Cloner (Donationware)
6. SuperDuper! (Commercial)
7. Intego Personal Backup (Commercial)
8. Data Backup (Commercial)
9. SilverKeeper 2.0 (Freeware)
10. MimMac (Commercial)
11. CloneTool Hatchery (Shareware)
12. Clone X (Commercial)
The following utilities can also be used for backup, but cannot create bootable clones:
1. Backup (requires a .Mac account with Apple both to get the software and to use it.)
2. Toast
3. Impression
4. arRSync
Apple's Backup is a full backup tool capable of also backing up across multiple media such as CD/DVD. However, it cannot create bootable backups. It is primarily an "archiving" utility as are the other two.
Impression and Toast are disk image based backups, only. Particularly useful if you need to backup to CD/DVD across multiple media.
Visit The XLab FAQs and read the FAQs on maintenance, optimization, virus protection, and backup and restore.
Additional suggestions will be found in Mac Maintenance Quick Assist.
Referenced software can be found at www.versiontracker.com and www.macupdate.com.

How do I block an ad that opens up a new Firefox window and keeps telling me my system performance is poor? I can't even capture the link.

This particular ad, supposedly from a Windows Certified Partner, opens in a second Firefox window and keeps flashing the message that my System Performance is Poor, wanting me to click on their ad and let them do whatever nasty things they want to my system. I have not been able to capture the path but next time it comes up, I will write down all that I can see.
If I have closed my main Firefox screen first, and then close out this ad, the next time I open Firefox, the ad opens and all my standard tabs are gone, requiring me to reopen each one seperately (Facebook, Google, etc).

Just to address the last point: check your History menu to see whether you have the Restore Previous Session option and use that if you can. If that is grayed out or doesn't restore everything, check the Recently Closed Windows and Recently Closed Tabs lists for other pages.
The unwanted window may be generated by an add-on. Try disabling ALL nonessential or unrecognized extensions on the Add-ons page. Either:
* Ctrl+Shift+a
* "3-bar" menu button (or Tools menu) > Add-ons
In the left column, click Extensions. Then, if in doubt, disable.
Usually a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step.
Any improvement?
Here are some other things to check:
(1) user.js file that changes Firefox startup behavior and overrides your preferences. This article describes how to track that down and delete it if you have one: [[How to fix preferences that won't save]].
(2) Possible hijacked shortcut. Check the "target" of the desktop icon you use to start Firefox to see whether it lists the unwanted page. To do that:
right-click the icon > Properties > Shortcut tab
For 64-bit Windows 7, the Target should be no more and no less than this:
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe"
(3) Possible undisclosed bundle items. If you have installed any free software recently, check your Windows Control Panel, Uninstall a program for surprises. If you click the "Installed on" column head to group by date, it is easier to spot bundled junk. Remove everything suspicious or unrecognized.
(4) Supplemental clean up scans. Our support article lists tools other Firefox users have found helpful: [[Troubleshoot Firefox issues caused by malware]].
Hopefully that cures it.

Can we have two R/3 Source Systems(Dev & Test) in BW Development....?

Hi All,
Till now we have only BW Development box..
Our Landscape for R/3 side is R/3 Development, Testing and Production.....
Already we have connected R/3 Development with BW Development... It is working fine as now... We have finished our task at Development...
My doubt is Can we Configure R/3 Testing to BW Development....eventhough R/3 Development is already configured with BW Dev....
Can we have two R/3 Source Systems(Dev & Test) in BW Development....?
Please help me out in this issue....
Your help will be appriciated...
Regards,
Kiran Telkar

Hi Kiran,
You can create second source system which will point to SAP R/3 Quality .
If you have transported all datasource activation requests to QA environment then all datasources are available in R3QA as well.
After creating source system , replicate datasources.
Only thing you need to do is to replicate efforts of assigning source system (R3QA)-> creating transfer rule -> Create info package and load data.
Hope that helps.
Regards
Mr Kapadia
Assigning points is the way to say thanks in SDN.

SCOM reports "A significant portion of the database buffer cache has been written out to the system paging file. This may result in severe performance degradation"

This was discussed here, with no resolution
http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/bb073c59-b88f-471b-a209-d7b5d9e5aa28?prof=required
I have the same issue. This is a single-purpose physical mailbox server with 320 users and 72GB of RAM. That should be plenty. I've checked and there are no manual settings for the database cache. There are no other problems with
the server, nothing reported in the logs, except for the aforementioned error (see below).
The server is sluggish. A reboot will clear up the problem temporarily. The only processes using any significant amount of memory are store.exe (using 53GB), regsvc (using 5) and W3 and Monitoringhost.exe using 1 GB each. Does anyone have
any ideas on this?
Warning ESE Event ID 906.
Information Store (1497076) A significant portion of the database buffer cache has been written out to the system paging file. This may result in severe performance degradation. See help link for complete details of possible causes. Resident cache
has fallen by 213107 buffers (or 11%) in the last 207168 seconds. Current Total Percent Resident: 79% (1574197 of 1969409 buffers)

Brian,
We had this event log entry as well which SCOM picked up on, and 10 seconds before it the Forefront Protection 2010 for Exchange updated all of its engines.
We are running Exchange 2010 SP2 RU3 with no file system antivirus (the boxes are restricted and have UAC turned on as mitigations). We are running the servers primarily as Hub Transport servers with 16GB of RAM, but they do have the mailbox role installed
for the sole purpose of serving as our public folder servers.
So we theroized the STORE process was just grabbing a ton of RAM, and occasionally it was told to dump the memory so the other processes could grab some - thus generating the alert. Up until last night we thought nothing of it, but ~25 seconds after the
cache flush to paging file, we got the following alert:
Log Name:      Application
Source:        MSExchangeTransport
Date:          8/2/2012 2:08:14 AM
Event ID:      17012
Task Category: Storage
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      HTS1.company.com
Description:
Transport Mail Database: The database could not allocate memory. Please close some applications to make sure you have enough memory for Exchange Server. The exception is Microsoft.Exchange.Isam.IsamOutOfMemoryException: Out of Memory (-1011)
   at Microsoft.Exchange.Isam.JetInterop.CallW(Int32 errFn)
   at Microsoft.Exchange.Isam.JetInterop.MJetOpenDatabase(MJET_SESID sesid, String file, String connect, MJET_GRBIT grbit, MJET_WRN& wrn)
   at Microsoft.Exchange.Isam.JetInterop.MJetOpenDatabase(MJET_SESID sesid, String file, MJET_GRBIT grbit)
   at Microsoft.Exchange.Isam.JetInterop.MJetOpenDatabase(MJET_SESID sesid, String file)
   at Microsoft.Exchange.Isam.Interop.MJetOpenDatabase(MJET_SESID sesid, String file)
   at Microsoft.Exchange.Transport.Storage.DataConnection..ctor(MJET_INSTANCE instance, DataSource source).
Followed by:
Log Name:      Application
Source:        MSExchangeTransport
Date:          8/2/2012 2:08:15 AM
Event ID:      17106
Task Category: Storage
Level:         Information
Keywords:      Classic
User:          N/A
Computer:      HTS1.company.com
Description:
Transport Mail Database: MSExchangeTransport has detected a critical storage error, updated the registry key (SOFTWARE\Microsoft\ExchangeServer\v14\Transport\QueueDatabase) and as a result, will attempt self-healing after process restart.
Log Name:      Application
Source:        MSExchangeTransport
Date:          8/2/2012 2:13:50 AM
Event ID:      17102
Task Category: Storage
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      HTS1.company.com
Description:
Transport Mail Database: MSExchangeTransport has detected a critical storage error and has taken an automated recovery action. This recovery action will not be repeated until the target folders are renamed or deleted. Directory path:E:\EXCHSRVR\TransportRoles\Data\Queue
is moved to directory path:E:\EXCHSRVR\TransportRoles\Data\Queue\Queue.old.
So it seems as if the Forefront Protection 2010 for Exchange inadvertently trigger the cache flush which didn't appear to happen quick or thuroughly enough for the transport service to do what it needed to do, so it freaked out and performed the subsequent
actions.
Do you have any ideas on how to prevent this 906 warning, which cascaded into a transport service outage?
Thanks!

Can Attribute lists be transported from development to QA system?

Hi,
We want to test the attribute lists with some data, Can Attribute lists be transported from development to QA system?
Regards
Monica

Hello Monica
How are you doing?
Can you help me out how i can transport the Attribute List which i have created in DEV with BI query. Hope you have resolved this by now. Could you help me out
regards
shankar

Can someone give a explan what the System Performance indicators mean?

Can someone give a explan what the System Performance indicators mean?
Audio & Disk I/O
Thank you,
Scott
G5 Dual 2.0 - 2.5 Gigs Ram Mac OS X (10.3.9)

Hi Scott!
Audio is your CPU activity, and Disk i/o is the amount of bandwidth you're using when streaming files from the hard drive (audio files and sample streaming).

Performance degradation. Need advice on starting all over again.

I have never formatted my drive or reinstalled my OS X like I used to do with XP during the windows days. Now there is some performance degradation and opening of applications like Safari, iPhoto and others is really slow. I maintain Time Machine backups of my full Snow Leopard partition. What should I do? Format the HD, re install SL, or simply restore from TM or reinstall and then restore...?
I dont really want to carry my windows attitude to mac, of reformatting, reinstalling and then starting all apps from scratch. I wanna leverage out of my TM backup. Please advice.
Neerav
MacBook 2.4GHz Unibody (Late 2008), 2GB RAM, SL

The hatter wrote:
Those steps, repair permissions? only checks the installed application receipts -- worthless.
Disk Utility doesn't check for bad blocks, and Apple First Aid misses and doesn't fix directory problems that are picked up by 3rd party tools like Disk Warrior.
The hatter's comments do not represent a consensus of opinion about this & are at least partially misleading.
Permissions repairs are indeed limited to comparing receipt info to actual permissions settings, but that is hardly worthless. It is well documented that mis-set permissions will cause a number of problems & resetting them to receipts values is an effective cure for those specific problems. Obviously, that won't cure problems with other causes, but since there is no magic cure-all it would be foolish to expect it to behave like one.
Regarding Disk Utility, it is true that it can't repair certain problems that some 3rd party utilities can; however, it is very effective at identifying file system problems, including those for some file systems the 3rd party apps do not support. It is also the most conservative disk utility available, designed not to attempt any repair that could result in loss of data. This is one reason it isn't as powerful as the 3rd party ones -- it is best to use it first if you suspect you have file system problems & use the more powerful ones only when necessary.
To be fair, Disk Warrior includes a directory optimization function that Disk Utility doesn't. However, an "unoptimized" directory isn't a problem in & of itself, & it is debatable how much real world benefit there is to optimizing the directory, at least with the current OS & modern high performance drives. I used to see noticeable improvements by periodically using Disk Warrior with OS 9 & the drives of that era, but these days my Macs & Snow Leopard seem to do just fine without it.
Basically, it is simple: use the tool that best does what you need to do. There is no benefit from using a sledge hammer when a tack hammer will do; in fact, the sledge hammer may do more harm than good, or just wear you out for no good reason. Also consider the wisdom of the old saying that to a hammer everything looks like a nail. Sometimes, you don't need a tool at all, just the wisdom to know that you don't.
Regarding bad sectors, every drive has them. That is not a concern by itself but the drive suddenly developing new ones is a sure sign of serious problems. Drives keep track of this themselves. Utilities provide a way to query the drives about this & may provide early warning of impending failure, but since the drive is providing the info this is not 100% reliable. For this reason, whether you use one or not, it is extremely important to backup your important data to other devices regularly & often.

Performance Degradation from SSL

I have read articles which are showing that performance could go down to
1/10 with certain servers (Reference
http://isglabs.rainbow.com/isglabs/shperformance/SHPerformance.html) when
using SSL.
I am cuurently using WebLogic 4.5. Can anybody tell me what kind of
performance degradation would I see if I switch all my transactions from
normal unsecure http transactions to secure ones (SSL V3)?
Any help appreciated.
best regards, Andreas

Andreas,
Internal benchmarks (unofficial) have shown SSL to be 65-80% slower than
typical connections. So, anywhere between 3 to 5 times slower. This is the
same across all http servers.
In Denali (the next release), we're adding a performance pack enhancement
that includes native code impls of some of our crypto code. This should
show large speedups when it's released in March.
Thanks!
Michael Girdley
Sr. Product Manager
WebLogic Server
BEA Systems
ph. 415.364.4556
[email protected]
Andreas Rudolf <[email protected]> wrote in message
news:820bv6$br6$[email protected]..
I have read articles which are showing that performance could go down to
1/10 with certain servers (Reference
http://isglabs.rainbow.com/isglabs/shperformance/SHPerformance.html) when
using SSL.
I am cuurently using WebLogic 4.5. Can anybody tell me what kind of
performance degradation would I see if I switch all my transactions from
normal unsecure http transactions to secure ones (SSL V3)?
Any help appreciated.
best regards, Andreas

Performance degradation encountered while running BOE in clustered set up

Problem Statement:
We have a clustered BOE set up in Production with 2 CMS servers (named boe01 and boe02) . Mantenix application (Standard J2EE application in a clustered set up) points to these BOE services hosted on virtual machines to generate reports. As soon as BOE services on both boe01 and boe02 are up and running , performance degradation is observed i.e (response times varies from 7sec to 30sec) .
The same set up works fine when BOE services on boe02 is turned off i.e only boe01 is up and running.No drastic variation is noticed.
BOE Details : SAP BusinessObjects environment XIR2 SP3 running on Windows 2003 Servers.(Virtual machines)
Possible Problem Areas as per our analysis
1) Node 2 Virtual Machine Issue:
This currently being part of the Production infrastructure, any problem assessment testing is not possible.
2) BOE Configuration Issue
Comparison report to check the build between BOE 01 and BOE 02 - Support team has confirmed no major installation differences apart from a minor Operating System setting difference.Question being is there some configuration/setting that we are missing ?
3) Possible BOE Cluster Issue:
Tests in staging environment ( with a similar clustered BOE setup ) have proved inconclusive.
We require your help in
- Root cause Analysis for this problem.
- Any troubleshooting action henceforth.
Another observation from our Weblogic support engineers for the above set up which may or may not be related to the problem is mentioned below.
When the services on BOE_2 are shutdown and we try to fetch a particular report from BOE_1 (Which is running), the following WARNING/ERROR comes up:-
07/09/2011 10:22:26 AM EST> <WARN> <com.crystaldecisions.celib.trace.d.if(Unknown Source)> - getUnmanagedService(): svc=BlockingReportSourceRepository,spec=aps<BOE_1> ,cluster:@BOE_OLTP, kind:cacheserver, name:<BOE_2>.cacheserver.cacheserver, queryString:null, m_replaceable:true,uri=osca:iiop://<BOE_1>;SI_SESSIONID=299466JqxiPSPUTef8huXO
com.crystaldecisions.thirdparty.org.omg.CORBA.TRANSIENT: attempt to establish connection failed: java.net.ConnectException: Connection timed out: connect minor code: 0x4f4f0001 completed: No
 at com.crystaldecisions.thirdparty.com.ooc.OCI.IIOP.Connector_impl.connect(Connector_impl.java:150)
 at com.crystaldecisions.thirdparty.com.ooc.OB.GIOPClient.createTransport(GIOPClient.java:233)
 at com.crystaldecisions.thirdparty.com.ooc.OB.GIOPClientWorkersPool.next(GIOPClientWorkersPool.java:122)
 at com.crystaldecisions.thirdparty.com.ooc.OB.GIOPClient.getWorker(GIOPClient.java:105)
 at com.crystaldecisions.thirdparty.com.ooc.OB.GIOPClient.startDowncall(GIOPClient.java:409)
 at com.crystaldecisions.thirdparty.com.ooc.OB.Downcall.preMarshalBase(Downcall.java:181)
 at com.crystaldecisions.thirdparty.com.ooc.OB.Downcall.preMarshal(Downcall.java:298)
 at com.crystaldecisions.thirdparty.com.ooc.OB.DowncallStub.preMarshal(DowncallStub.java:250)
 at com.crystaldecisions.thirdparty.com.ooc.OB.DowncallStub.setupRequest(DowncallStub.java:530)
 at com.crystaldecisions.thirdparty.com.ooc.CORBA.Delegate.request(Delegate.java:556)
 at com.crystaldecisions.thirdparty.org.omg.CORBA.portable.ObjectImpl._request(ObjectImpl.java:118)
 at com.crystaldecisions.enterprise.ocaframework.idl.ImplServ._OSCAFactoryStub.getServices(_OSCAFactoryStub.java:806)
 at com.crystaldecisions.enterprise.ocaframework.ServiceMgr.do(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.ServiceMgr.a(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.ServiceMgr.getUnmanagedService(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.AbstractStubHelper.getService(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.e.do(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.o.try(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.o.a(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.o.a(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.p.a(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.ServiceMgr.getManagedService(Unknown Source)
 at com.crystaldecisions.sdk.occa.managedreports.ps.internal.a$a.getService(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.e.do(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.o.try(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.o.a(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.o.a(Unknown Source)
 at com.crystaldecisions.enterprise.ocaframework.p.a(Unknown Source)
We see the above warning coming 2 or 3 times before the request is processed and then we see the report. We have checked our config's for the cluster but didn't find anything concrete.
Is this a normal behavior of the software or can we optimize it?
Any assistance that you can provide would be great

Rahul,
I have exactly the same problem running BO 3.1 SP3 in a 2 machine cluster on AIX. Exact same full install on both machines. When I take down one of the machines the performance is much better.
An example of the problem now is that when i run the command ./ccm.sh -display -username administrator -password xxx on the either box when they are both up and running, I sometimes receive a timeout error (over 15mins)
If I run SQLplus direct on the boxes to the CMS DB then the response is instant. Tnspings of course shows no problems
When I bring down one of the machines and run the command ./ccm.sh -display again then this brings back results in less than a minute...
I am baffled as to the problem so was wondering if you found anything from your end
Cheers
Chris

Performance degradation after SP 24 installation

Hi,
Our SAP BI systems are upgraded to service pack 24. After this, we see a lot of performance degradation. (Process chains are taking time to complete in BI)
Can anybody please suggest which note to apply to avoid this?
Thx in advance.
- V Sudhakar
Edited by: sudhakar.agollu on Mar 31, 2011 12:29 AM
Edited by: sudhakar.agollu on Mar 31, 2011 12:30 AM
Edited by: sudhakar.agollu on Mar 31, 2011 12:31 AM
Edited by: sudhakar.agollu on Apr 1, 2011 3:01 AM

Hi,
Regenerate after sap system upgrade.
Run t code SGEN
Regards,
klaees

Performance degradation after setting filesystemio_option=setall from none.

Hi All,
We have facing performance degradation after setting filesystemio_option=setall from none on my two servers as mentioned below.
Red Hat Enterprise Linux AS release 4 (Nahant Update 7) 2.6.9 55.ELhugemem (32-bit)
Red Hat Enterprise Linux Server release 5.2 (Tikanga) 2.6.18 92.1.10.el5 (64-bit)
We are seeing lots of Disk I/O happening. We expected "*filesystemio_option=setall* " will improve performance but it is degrading. We getting slowness complains.
Please let me know do we need to set somethign else along with this ...like any otimizer parameter( e.g. optimizer_index_cost_adj, optimizer_index_caching).
Please help.

Hi Suraj,
<speculation>
You switched filesystemio_options to setall from none, so, the most likely reason for performance degradation after switching to setall is the implementation of directio. Direct I/O will skip the filesystem buffer cache, and and allow Oracle to read directly from disk to the database buffer cache. However, on a system where direct I/O is not implemented, which is what you had until you recently messed with that parameter, it's likely that you had an undersized database buffer cache, but that was ok, because many (most) of the physical I/Os your database was doing, were actually being serviced by the O/S filesystem buffer cache. But, you introduced direct I/O, and wiped out the ability of the O/S to service any physical I/Os from filesystem buffer cache. This means that every cache miss on the database buffer cache, turns into a real, physical, spin-the-disk, move-the-drive-head, physical I/O. And, you are suffering the performance consequences.
</speculation>
Ok, end of speculation. Now, assuming that what I've outlined above is actually going on, what to do? Why is direct I/O lower performing than buffered, non-direct I/O? Shouldn't it's performance be superior?
Well, when you have an established system that's using buffered I/O, and you switch to direct I/O, you almost always will have to increase the size of the database buffer cache. The problem is that you took a huge chunk of memory away from the the O/S, that it was using to buffer your I/Os and avoid physical I/O. So, now, you need to make up for it, by increasing the size of the database buffer cache. You can do this, without buying more memory for the box, because the O/S is no longer going to need to use so much memory for filesystem buffers.
So, what to do? Is it worth switching? Well, on balance, it makes sense to use direct I/O, and give Oracle a larger database buffer cache, for the simple fact that (particularly on a server that's dedicated to being an Oracle database server), Oracle has far more sophisticated caching algorithms, and a better understanding of the various types of data being cached, and so should be able to make more efficient use of the memory, than the (relatively) brain dead caching algorithms of the kernel and filesystem mechanisms.
But, once again, it all comes down to this:
What problem are you trying to solve? Did you have any I/O related issues? Do you have any compelling reason to implement direct I/O? Rule #1 is "if it ain't broke, don't fix it." Did you just violate rule #1? :-)
Finally, since you're on Linux, you can use the 'free' command to see how much memory is on the box, how much is free, and how much is dedicated to filesystem cache buffers. This response is already pretty long, so, I'm not going to get into details, however, if you're not familiar with the command, the results could be misleading. Read the man page, and try to be clear about understanding it before you make any assumptions about the output.
Hope that helps,
-Mark

Can System performance degraded by Z development

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