Server Performance slow
Client has a NetWare 6.5 server SP 7 or last one put out. Lately the server performance would drop to almost half the speed it was running after about 3 hrs of up time, I cannot see anything that point to any module or hardware that is causing this.
The PRB are where they are suppose to be.
The Dirty Cache is 0%
The only thing I can see is in the Busiest thread on the Kernel screen there is a Server [numbered anywhere from 01 to 20] that shows up with some fairly large numbers for memory usage. What i'm trying to do is to nail this down to what the actual application/module is.
On other screens there are supended semaphore. Can anyone explain this to me?
Any help would be greatly appreciated.
Jon
Originally Posted by jlmiller
Client has a NetWare 6.5 server SP 7 or last one put out. Lately the server performance would drop to almost half the speed it was running after about 3 hrs of up time, I cannot see anything that point to any module or hardware that is causing this.
The PRB are where they are suppose to be.
The Dirty Cache is 0%
The only thing I can see is in the Busiest thread on the Kernel screen there is a Server [numbered anywhere from 01 to 20] that shows up with some fairly large numbers for memory usage. What i'm trying to do is to nail this down to what the actual application/module is.
On other screens there are supended semaphore. Can anyone explain this to me?
Any help would be greatly appreciated.
Jon
Latest update we got an abend
Server NWFS1 halted Tuesday, 10 April 2012 1:37:17.270 pm
Abend 1 on P00: Server-5.70.07: Nonmaskable Interrupt Processor Exception (Error code 000000A0)
This shows up on serveral processes from Loader to Groupwise...
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Server performance slow using sql server 2005
Dear Team,
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Weblogic server performance is very slow and memory consumption is 99%
I am facing one critical issue with the weblogic server..
The server performance is very slow and one of the process is consuming more that 99% of the memory. Bouncing the server is not resolving the issue.
Can see the memory usage below...
Tasks: 134 total, 2 running, 132 sleeping, 0 stopped, 0 zombie
Cpu(s):100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 7990656k total, 7947652k used, 43004k free, 9164k buffers
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PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10263 oracle 24 0 10.9g 6.5g 14m S 99.2 85.3 34:31.52 java
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WebLogic Server - Upgrade / Install / Environment / Migration -
BI Server performance too slow
Hi experts,
I am facing an issue, my OBIEE sits on a Unix Platform. And many time the server performance is too slow, when I check the processes, Java under Orabi user is using more than 50% of the CPU utilization. I need to find the root cause behind it, as it is the production system and is affecting many users.
Thanks in advance.
MTThanks Prassu,
Yes the Server is performing too much calculations, but they are required as need to cache reports at daily level also,
I have an observation that the MAX_CACHE_ENTRY_SIZE [MAX_CACHE_ENTRY_SIZE = 1 MB;] parameter is set only for 1 MB, I can understand that if any query fetching more data than 1 MB will not be cached. But is there any chance that this will affect the server as well.
Thanks
MT -
Can a long running batch job causing deadlock bring server performance down
Hi
I have a customer having a long running batch job (approx 6 hrs), recently we experienced performance issue where the job now taking >12 hrs. The database server is crawling. Looking at the alert.log showing some deadlock,
The batch job are in fact many parallel child batch job that running at the same time, that would have explain the deadlock.
Thus, i just wondering any possibility that due to deadlock, can cause the whole server to be crawling, even connect to the database using toad is also getting slow or doing ls -lrt..
Thanks
Rgds
UngKok Aik wrote:
According to documentation, complex deadlock can make the job appeared hang & affect throughput, but it didn't mentioned how it will make the whole server to slow down. My initial thought would be the rolling back and reconstruct of CR copy that would have use up the cpu.
I think your ideas on rolling back, CR construction etc. are good guesses. If you have deadlocks, then you have multiple processes working in the same place in the database at the same time, so there may be other "near-deadlocks" that cause all sorts of interference problems.
Obviously you could have processes queueing for the same resource for some time without getting into a deadlock.
You can have a long running update hit a row which was changed by another user after the update started - which woudl cause the long-running update to rollback and start again (Tom Kyte refers to this as 'write consistency' if you want to search his website for a discussion on the topic).
Once concurrent processes start sliding out of their correct sequences because of a few delays, it's possible for reports that used to run when nothing else was going on suddenly finding themselves running while updates are going on - and doing lots more reads (physical I/O) of the undo tablespace to take blocks a long way back into the past.
And so on...
Anyway, according to the customer, the problem seems to be related to the lgpr_size as the problem disappeared after they revert it back to its orignial default value,0. I couldn't figure out what the lgpr_size is - can you explain.
Thanks
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk
"Science is more than a body of knowledge; it is a way of thinking" Carl Sagan -
Bea Weblogic Server performance question.
Hello,
Im wondering if there are big performance difference between Bea Weblogic Server
versions.
I run BWS 5.1 and find it great, I ve tested the application on 6.0 and it seems
to run as good as 5.1, I ve tested with 6.1 and it works fine too.
And now is my question... is it big difference between WLS from 5.1, 6.0, 6.1,
7.0, 8.0, 8.1 ???
I dont need any "super-hyper" features just run a simple EJB (30-40 EJBs) application.
If there are big performance difference then there is a good reason to update
to the latest WLS. (Do you have any benchmark urls for this issue?)
Do I need to modify the EJBs if I want to upgrade from 5.1 to 8.1 ??
When I upgraded from 5.1 to 6.1 there was a little changes I ve to make in the
xml files.
Thanks for all your help!
/Sonny!"Sonny" <[email protected]> wrote in message
news:3f0d6ca6$[email protected]..
|
| Hello,
|
| Im wondering if there are big performance difference between Bea Weblogic
Server
| versions.
| I run BWS 5.1 and find it great, I ve tested the application on 6.0 and it
seems
| to run as good as 5.1, I ve tested with 6.1 and it works fine too.
| And now is my question... is it big difference between WLS from 5.1, 6.0,
6.1,
| 7.0, 8.0, 8.1 ???
| I dont need any "super-hyper" features just run a simple EJB (30-40 EJBs)
application.
|
| If there are big performance difference then there is a good reason to
update
| to the latest WLS. (Do you have any benchmark urls for this issue?)
|
| Do I need to modify the EJBs if I want to upgrade from 5.1 to 8.1 ??
| When I upgraded from 5.1 to 6.1 there was a little changes I ve to make in
the
| xml files.
|
| Thanks for all your help!
|
| /Sonny!
As new versions release, there is differences in performance. One
significant point to note is the JVM versions that are supported which
significantly impact the application server performance. The new WLS 8.1 on
the newest released 1.4.2 JVM is damn good. The 1.4.1_0x JVMs have been
dramatically slower in tests that I've done. So even incremental releases
will make an impact.
In newer releases, code matures also. I also believe in 7.x they gave the
capability of clustering JVM more effectively.
anyway... good luck.
ken k -
Hello Friend
If the DEV or PRD server goes slow down what are the basic probelm?
Means I want to what are the step you have do?
Like Checking the network connection?
checking the server?
Review the CCMS
checking users?
Database size?
Will anyone tell me that On what step should be done find that why server down/Slow
Thanks
GaneshHi,
You have to tell me what is the configuration of your system. And for that answer the below question,
1) How many application server are attached?
2) Your system is ABAP or JAVA or ABAP+JAVA?
3) How many users are connecting to the system at the same time(Approx)?
4) How many dialog work process are defined in each application server?
5) What is the RAM size of your system
Please answer the following question then I can give you some performance tuning suggestion.
Thanks,
Sudip... -
Exchange 2013 CU7 server performance/outage issues.
Hi Forum,
We are constantly faced with incidents from users that the connections are lost with the exchange server. As a result, we hired a consultant to install an new Exchange 2013 environment based on the Microsoft, VM-Ware and NetApp best practices.
We are still having problems with performance issues. From the client prospective, the performance has not changed, weekly hangs are still happening and I’m at my wits end.
This is our configuration:
2 Windows Server 2012 R2 CAS and DB
VM with 4 vCpu, 16GB, 1 Vmxnet3, IPv6 disabled (the Microsoft way)
VM Ware 5.1 U1
Cluster without AAP
DB1 active on Server 1 (Datacenter 1 with 3 host cluster)
DB2 active on Server 2 (Datacenter 2 with 3 host cluster)
Veeam 8 Backup (Move-ActiveMailboxDatabase DB2 -ActivateOnServer Server1 , backup server 2 then Move-ActiveMailboxDatabase back to
Server2.
Exchange is in Online-Mode due to Citrix XD VDI clients.
1300 Mailboxes and 750 users.
NetApp with SATA disks. (1.5TB E: Vol for DB1/1.5TB F: Vol for DB2)
No archiving
Unlimited mailbox sizes.
The problems are:
If we migrate a non-Exchange VM in the same cluster or to\from the same host, this results in a 30 second to 5 min Outlook outage;
If we make both DB’s active on mail server 1 and reboot server 2, this results in a 30 second to 5 min Outlook outage;
If we make both DB’s active on mail server 1 and do a Veeam backup of server 2, sometimes one of the DB’s go back to server 1, on its own;
While monitoring we see that the w3wp.exe and the Microsoft.Exchange.Store.worker.exe are consuming most of the cpu and memory;
What can I do to solve the outages?
Tnx. Timotatty.
Exchange server performance issues.
Hi Forum,
We are constantly faced with incidents from users that the connections are lost with the exchange server. As a result, we hired a consultant to install an new Exchange 2013 environment based on the Microsoft, VM-Ware and NetApp best practices.
We are still having problems with performance issues. From the client prospective, the performance has not changed, weekly hangs are still happening and I’m at my wits end.
This is our configuration:
2 Windows Server 2012 R2 CAS and DB
VM with 4 vCpu, 16GB, 1 Vmxnet3, IPv6 disabled (the Microsoft way)
VM Ware 5.1 U1
Cluster without AAP
DB1 active on Server 1 (Datacenter 1 with 3 host cluster)
DB2 active on Server 2 (Datacenter 2 with 3 host cluster)
Veeam 8 Backup (Move-ActiveMailboxDatabase DB2 -ActivateOnServer Server1 , backup server 2 then Move-ActiveMailboxDatabase back to
Server2.
Exchange is in Online-Mode due to Citrix XD VDI clients.
1300 Mailboxes and 750 users.
NetApp with SATA disks. (1.5TB E: Vol for DB1/1.5TB F: Vol for DB2)
No archiving
Unlimited mailbox sizes.
The problems are:
If we migrate a non-Exchange VM in the same cluster or to\from the same host, this results in a 30 second to 5 min Outlook outage;
If we make both DB’s active on mail server 1 and reboot server 2, this results in a 30 second to 5 min Outlook outage;
If we make both DB’s active on mail server 1 and do a Veeam backup of server 2, sometimes one of the DB’s go back to server 1, on its own;
While monitoring we see that the w3wp.exe and the Microsoft.Exchange.Store.worker.exe are consuming most of the cpu and memory;
What can I do to solve the outages?
Tnx. Timotatty.Hi Simon,<o:p></o:p>
Apparently we are using basic authentication which result in a FailingCode=401 as seen in the Event Log under Active Monitoring --> Probe Results from ECP and others. This
became apparent after reading this blog:
http://blogs.technet.com/b/ehlro/archive/2014/02/20/exchange-2013-managed-availability-healthset-troubleshooting.aspx<o:p></o:p>
We are now overriding some of the monitors which require Forms Based Authentication.<o:p></o:p>
Regarding the other 2 issues we have changed the licensing model for Veeam 8 to allow full throughput which will reduce the backup time and add compression.
The KEMP support team helped us by deselecting Use HTTP/1.1 under View/Modify Services --> ECP –> Modify --> Real Servers. This
now only flags a service (ECP or ActiveSync or OWA) as being down instead of an etire server should one component fail.<o:p></o:p>
I am satisfied but still not happy with the steps required to troubleshoot an Unhealthy Health Sets:<o:p></o:p>
Invoke-MonitoringProbe always returns with: WARNING: Could not find assembly or object type associated with monitor identity '<Healthe Set >\< Probe >'. Please ensure
that the given monitor identity exists on the server.
This makes it very difficult to troubleshoot
Unhealthy Health Sets.
Regards,
Timotatty -
How to get sql server performance counters using query?
Hai i want to see my sql server performance counters like, Full Scans/sec, Buffer
Cache Hit Ratio, Database Transactions/sec, User
Connections, Average Latch Wait Time (ms), Lock
Waits/sec, Lock Timeouts/sec, Number
of Deadlocks/sec, Total Server Memory, SQL
Re-Compilations/sec, User Settable Query. If any one know how to get it by using query means, please help me.
Thanks in advanceHello,
Below is query created by Jonathan Kehayias for measuring Perfom counters using DMV sys.dm_os_performance_counter.
You can download book from below link
https://www.simple-talk.com/books/sql-books/troubleshooting-sql-server-a-guide-for-the-accidental-dba/
DECLARE @CounterPrefix NVARCHAR(30)
SET @CounterPrefix = CASE WHEN @@SERVICENAME = 'MSSQLSERVER'
THEN 'SQLServer:'
ELSE 'MSSQL$' + @@SERVICENAME + ':'
END ;
-- Capture the first counter set
SELECT CAST(1 AS INT) AS collection_instance ,
[OBJECT_NAME] ,
counter_name ,
instance_name ,
cntr_value ,
cntr_type ,
CURRENT_TIMESTAMP AS collection_time
INTO #perf_counters_init
FROM sys.dm_os_performance_counters
WHERE ( OBJECT_NAME = @CounterPrefix + 'Access Methods'
AND counter_name = 'Full Scans/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Access Methods'
AND counter_name = 'Index Searches/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Buffer Manager'
AND counter_name = 'Lazy Writes/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Buffer Manager'
AND counter_name = 'Page life expectancy'
OR ( OBJECT_NAME = @CounterPrefix + 'General Statistics'
AND counter_name = 'Processes Blocked'
OR ( OBJECT_NAME = @CounterPrefix + 'General Statistics'
AND counter_name = 'User Connections'
OR ( OBJECT_NAME = @CounterPrefix + 'Locks'
AND counter_name = 'Lock Waits/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Locks'
AND counter_name = 'Lock Wait Time (ms)'
OR ( OBJECT_NAME = @CounterPrefix + 'SQL Statistics'
AND counter_name = 'SQL Re-Compilations/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Memory Manager'
AND counter_name = 'Memory Grants Pending'
OR ( OBJECT_NAME = @CounterPrefix + 'SQL Statistics'
AND counter_name = 'Batch Requests/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'SQL Statistics'
AND counter_name = 'SQL Compilations/sec'
-- Wait on Second between data collection
WAITFOR DELAY '00:00:01'
-- Capture the second counter set
SELECT CAST(2 AS INT) AS collection_instance ,
OBJECT_NAME ,
counter_name ,
instance_name ,
cntr_value ,
cntr_type ,
CURRENT_TIMESTAMP AS collection_time
INTO #perf_counters_second
FROM sys.dm_os_performance_counters
WHERE ( OBJECT_NAME = @CounterPrefix + 'Access Methods'
AND counter_name = 'Full Scans/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Access Methods'
AND counter_name = 'Index Searches/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Buffer Manager'
AND counter_name = 'Lazy Writes/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Buffer Manager'
AND counter_name = 'Page life expectancy'
OR ( OBJECT_NAME = @CounterPrefix + 'General Statistics'
AND counter_name = 'Processes Blocked'
OR ( OBJECT_NAME = @CounterPrefix + 'General Statistics'
AND counter_name = 'User Connections'
OR ( OBJECT_NAME = @CounterPrefix + 'Locks'
AND counter_name = 'Lock Waits/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Locks'
AND counter_name = 'Lock Wait Time (ms)'
OR ( OBJECT_NAME = @CounterPrefix + 'SQL Statistics'
AND counter_name = 'SQL Re-Compilations/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'Memory Manager'
AND counter_name = 'Memory Grants Pending'
OR ( OBJECT_NAME = @CounterPrefix + 'SQL Statistics'
AND counter_name = 'Batch Requests/sec'
OR ( OBJECT_NAME = @CounterPrefix + 'SQL Statistics'
AND counter_name = 'SQL Compilations/sec'
-- Calculate the cumulative counter values
SELECT i.OBJECT_NAME ,
i.counter_name ,
i.instance_name ,
CASE WHEN i.cntr_type = 272696576
THEN s.cntr_value - i.cntr_value
WHEN i.cntr_type = 65792 THEN s.cntr_value
END AS cntr_value
FROM #perf_counters_init AS i
JOIN #perf_counters_second AS s
ON i.collection_instance + 1 = s.collection_instance
AND i.OBJECT_NAME = s.OBJECT_NAME
AND i.counter_name = s.counter_name
AND i.instance_name = s.instance_name
ORDER BY OBJECT_NAME
-- Cleanup tables
DROP TABLE #perf_counters_init
DROP TABLE #perf_counters_second
Please mark this reply as the answer or vote as helpful, as appropriate, to make it useful for other readers -
Speed up load to ftp server in window server 2008 slow
Dear all.
I have configure FTP in window server 2008 (IIS 7.5...), when I test in LAN speed upload to ftp server is slow ( 60-80 KB/S).
Please help me fix it.
Thanks so muchyou should post on IIS forum:
http://forums.iis.net/t/1187778.aspx?Maximum+file+size+for+FTP
http://forums.iis.net/p/1193472/2036340.aspx?Restrict+FTP+upload+file+sizes
try disabling firewall on the ftp server just check if it will help.
Every second counts..make use of it. Disclaimer: This posting is provided AS IS with no warranties or guarantees and confers no rights. -
my server performance is very poor..what should i do to improve my server performance..plz tell me some steps to do
Hi,
You don't specify which server it.
For web as, check
Re: Increasing Heap Size not possible
Re: Problem with Java.lang.outofmemoryerror
max number of server processes
For portal
check
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/b601a14c-0601-0010-909c-ddc7ae0a1071
Which are you using?
Eddy
PS. Which type of SDN Ubergeek/BPX suit are <a href="/people/eddy.declercq/blog/2007/05/14/which-type-of-sdn-ubergeekbpx-suit-are-you">you</a>?
Deadline: June 15th -
An error has occured while updating software. Connecting to the server is slow and games etc only run for 60 seconds
Have you tried resetting your iPad? You may have to restore again if there was a problem.
Try the reset first.
Reset the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. -
My windows server getting slow down
windows 2008R2 & 12 gm ram is installed but then too getting slow.Hi
Remove nested select and if all primary keys are then use single otherwise upto 1 rows
also remove the unnecessary code like this
see the below code you added twice the amount there
delete the itab before looping
use single loop to add the values
--calculations--
LOOP AT ITAB.
IF ITAB-KSCHL <> ''.
TOTAL1 = TOTAL1 + ITAB-AMOUNT.
ENDIF.
ENDLOOP.
DELETE ITAB WHERE KSCHL <> ''.
LOOP AT ITAB.
TOTAL = TOTAL + ITAB-AMOUNT .
ITAB-TDSWCT = ITAB-TDS + ITAB-WCT.
ENDLOOP.
Regards
Shiva -
Performance slow down (Run Portal Form)
performance slow down
Hi :
When I code a program and running, it is running speed is very fast. but After I was coded programs about 10 program, it is speed is
slow down, runing a program must speed 1 minute.
My portal system totally have 12 programs, when I reinstall portal system. that problem never change.
Can you tell me why? Thanks.
nullHi :
Sorry, I don't understand your answer.
you mean the solution is create index.
But what table can I create index, oracle portal table or my own apllication table? -
Server Performance (TOP)
Hi,
I'm running an oracle process, which may hit the Server CPU performance & Memory Status.
How may I generate a server performance report every 30 minutes by default?
How this can be done with Linux server, HP-UX and AIX Server?
Thanks in advance
KSGKSG wrote:
Hi,
I'm running an big oracle process, which may hit the Server CPU performance & Memory Status. Wow!
.....what does 'hit the Server CPU performance & memory status' mean?
>
How may I generate a server performance report every 30 minutes by default?on linux, which is what this forum is about, install the 'sysstat' rpm package.
when installed, it generates statistics every 10 minutes.
goto /var/log/sa, you'll see files called 'sa', followed by the day number of the month.
you can extract the performance data in these files using 'sar -f <safile>', and choose the switch for the statistics you want to see.
>
How this can be done with Linux server, HP-UX and AIX Server?once installed the same way on hpux, aix etc. sar works the same.
>
>
Thanks in advance
KSG
Edited by: KSG on Nov 19, 2009 6:34 PM
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