CPU load growing slowly at exact pace

Hi all,
I'm experiencing a weird thing since migrating from 10.5 server to 10.6 server: The CPU load grows slowly but steadily after each restart. After two days the server gives bad response, resulting in beachballs coming and going on both the server and all clients with server home folders. After a restart everything is OK again, and the CPU load starts slowly to grow again, even at night when the load should be near zero. Have anyone experienced this? Any ideas?

I've checked both logs and AM, but I don't see anything special there. The active processes just seems to slowly be eating more and more CPU time. The CPU load grows by a linear rate from a mere 5%, and when it reaches about 40% the sluggishness begins. This process takes about 2 days. There's currently no third party software running. Services that run are: AFP, DNS, FTP, iCal, Mail, OD, SMB, VPN and Web. The server has a RAID-card with the three bays set up as a RAID5.

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High MySQL CPU Load

Hello All,
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OS X Server 10.5.5
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8GBs RAM
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Why won't MySQL use the 8GBs of memory I have installed instead of sucking up CPU? Is there a way to allocate this in the OS or terminal? If not, should I be optimizing MySQL settings instead to better work with my query statement and 8GBs of memory that I have installed? I'm not exactly sure what to adjust within the MySQL settings if this is the case.
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Thank you very much!

@Camelot,
I have not configured anything, everything is default install. I have about 6 devs on this box at all times and we do not have a MySQL admin. I really need to fine tune this setup as the DBs are starting to grow very big. I am looking for any help at this point and want to start fixing this now before it becomes more of a problem. I am going to start researching the MySQL dev zone ASAP.
@Mabel
Here is the output of MySQLtuner:
*Maybe I need Snow Leopard to utilize all 8GBs of RAM??*
-------- General Statistics --------------------------------------------------
[--] Skipped version check for MySQLTuner script
[OK] Currently running supported MySQL version 5.0.67-log
[!!] Switch to 64-bit OS - MySQL cannot currently use all of your RAM
-------- Storage Engine Statistics -------------------------------------------
[--] Status: -Archive -BDB -Federated +InnoDB -ISAM -NDBCluster
[--] Data in MyISAM tables: 5M (Tables: 16)
[--] Data in InnoDB tables: 138M (Tables: 51)
[OK] Total fragmented tables: 0
-------- Performance Metrics -------------------------------------------------
[--] Up for: 99d 16h 39m 42s (53K q [0.006 qps], 1K conn, TX: 17B, RX: 2M)
[--] Reads / Writes: 99% / 1%
[--] Total buffers: 442.0M global + 12.4M per thread (100 max threads)
[OK] Maximum possible memory usage: 1.6G (41% of installed RAM)
[OK] Slow queries: 0% (0/53K)
[OK] Highest usage of available connections: 8% (8/100)
[OK] Key buffer size / total MyISAM indexes: 384.0M/123.9M
[OK] Key buffer hit rate: 99.8% (10K cached / 18 reads)
[!!] Query cache efficiency: 0.8% (52 cached / 6K selects)
[OK] Query cache prunes per day: 0
[!!] Sorts requiring temporary tables: 11% (5 temp sorts / 44 sorts)
[!!] Temporary tables created on disk: 38% (11K on disk / 29K total)
[OK] Thread cache hit rate: 99% (8 created / 1K connections)
[OK] Table cache hit rate: 91% (76 open / 83 opened)
[OK] Open file limit used: 7% (86/1K)
[OK] Table locks acquired immediately: 100% (10K immediate / 10K locks)
[!!] InnoDB data size / buffer pool: 138.2M/8.0M
-------- Recommendations -----------------------------------------------------
General recommendations:
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When making adjustments, make tmptable_size/max_heap_tablesize equal
Reduce your SELECT DISTINCT queries without LIMIT clauses
Variables to adjust:
querycachelimit (> 1M, or use smaller result sets)
sortbuffersize (> 2M)
readrnd_buffersize (> 8M)
tmptablesize (> 32M)
maxheap_tablesize (> 16M)
innodbbuffer_poolsize (>= 138M)
Should I just go with these adjustments for now or do you guys recommend anything else?
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Message was edited by: spraguga

VI causes high CPU load after several days of running

Hello,
I have a strange problem. I have craeted a test bench control VI and it runs on five PCs, controling five test benches. All PCs have almost the same hardware, same motherboard, same CPU, etc.
Normaly the CPU load is around 50% when I run the VI, but at one PC the CPU load climbs up to 85% after several days (maybe one week) of continuous running and the PC is almost tied up - the VI execution becomes very slow (10 times slower) and the mouse only moves very slowly.
First I thought that the PC has a problem but the problem dissapears as soon as I stop and restart the VI!
I don't even have to terminate LabVIEW - only my VI and then everything is okay again.
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Greetings Johannes
Using LabVIEW 7.1 and 2009 recently
Solved!
Go to Solution.

Do all PCs have the same amount of RAM?
What is the memory use over time as seen by the windows taks manager. Does it increase gradually?
An increase in resource usage if often cause by sloppy programming.
Do you grow arrays forever or constantly resize arrays in memory? (built array, insert into array, delete from array)
Do you often create new references and never close them?
What does the program actually do? In my opinion, a constant 50% CPU load seems too high for my taste. It means it would not even be able to keep up on slightly older hardware.
LabVIEW Champion . Do more with less code and in less time .

CPU Load 98% after changed MTU size

Hi,
I am having problem here. Previously, when the MTU was 1508...The cpu load was <5%. When changed to 1512, the load was increasing 70%. Recently, changed to 1522, the load is >95%. Not sure what's going with the configuration. But I can a lot ques dropping. Should I put on the port-channel 1? For more details configuration, please refer to attached file
hold-queue 1024 in
hold-queue 1024 out
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CPU utilization for five seconds: 96%/38%; one minute: 96%; five minutes: 96%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
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I had this same exact problem on the cat 6500 running SXF10. Where I enabled MPLS and it caused CPU to spike. So to check what is getting forwarded to the MSFC perform the following to see a packet capture of what is hitting the CPU. So you need to run a SNIFFER capture.
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Here are the instructions to setup inband span (which monitors traffic sent
to the MSFC):
Router#monitor session 1 source interface fa 3/3 !--- Use any interface that
is administratively shut down.
Router#monitor session 1 destination interface fa 3/2 !-- connected to sniffer port
Now, go to the SP console. Here is an example:
Router#remote login switch
Router-sp#test monitor add 1 rp-inband rx <--- check the syntax as it varies
from one IOS to the next so use ?
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Router-sp#test monitor show session 1
Ingress Source Ports: 3/3 15/1
Egress Source Ports: 3/3
Ingress Source Vlans:
Egress Source Vlans:
Filter Vlans:
Destination Ports: 3/2
Go back to the RP and verify the monitor session as well:
Router#show monitor
Session 1
Type : Local Session
Source Ports :
Both : Fa3/3
Destination Ports : Fa3/2
SP console:
Router-sp#test monitor session 1 show
Ingress Source Ports: 3/3 15/1
Egress Source Ports: 3/3
Ingress Source Vlans:
Egress Source Vlans:
Filter Vlans:
Destination Ports: 3/2
To remove the inband span from sp do test monitor session 1 del and from the rp do no mon sess all
===============================
So my exact issue was two parts, CPU spike up 99% when WCCP was enabled with MPLS tag switching at the same time. Rebooting didnt help... I ended up changing from SXF10 to SXF14 IOS just in case but I still had high CPU after upgrade. But the major difference was when I removed the ACL tied to WCCP and removing the ACL completely and re-pasting into the configs for WAAS and then reapplying. But in my sniffer capture I did notice a lot of ip fragmentation hitting the MSFC processor. Now my MTU is 1522 and works fine.

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We are running a Portal cluster with 2 cluster application nodes with each 2 J2EE server processes and a dispatcher.
We experiences that after some time the J2EE server processes can start using typical 25% CPU without any load on the portal - after some time the load typically increase to approx. 50% CPU (still without user load) and the only "solution" is to restart the processes.
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BR
Tom

Are you doing load balancing too somewhere?
I though I read somewhere about some replication between nodes that goes on. If they transfer their information and drop it, that is fine. But they don't. On the next round they exchange the new info and info from the last time. It just grows. Look at you DB server, check to see if one of the DB's grows with the CPU load.
The other thing is logging. I am a log freak myself but, sometimes I get into trouble by logging too much. Next time your CPU loads check *.log and temp logs, see if there are any over 10 gig.
Not that I never had one,
no,
never.

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Hello,
i have several SG500 (Standalone and stacked). How can i get the CPU Load via SNMP? Who knows the correct SNMP OID for CPU Load?
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Hello,
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Christopher Ebert - Network Support Engineer
Cisco Small Business Support Center
*please rate helpful posts*

High CPU load with Flash on Mac Leopard

Dear Adobe,
I am always running the latest version of the Flash plugin on my Macbook. Ever since even with the simplest Flash movies running in a browser (no matter whether Safari, Firefox, Camino, Opera, ...) the CPU load jumps oh so high the fans will spin at full speed and the CPU starts to create subtropic temperatures. Years ago I was running a Windows PC where the CPU load wasn't even close to such high CPU loads. Oh so many Apple users would very very much appreciate Flash Player being at least close to as efficient as the Windows version.
Thanks in advance for making Flash movies more enjoyable on the Mac platform

Adobe need to realize that once their great product with a lot of penetration into the web ad + ria market is starting loose its ground as they simply can't address ongoing issue on their poor flash plug-in performance other than on windows platform. There are a lot of flash enthusiast out there but this poor support from the Adobe doesn't help this much further. One of the reasons why other software vendors pushing for more open standard RIA platforms other than Flash based...
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http://phoenix.lpl.arizona.edu/video/edlteaserhigh.mov
_Can anyone tell me why? Is there a solution somewehre in this universe?_
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AMD Thunderbird C 1.3GHz/Geforce 2 Pro/1GB DDR
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I have used 7.1.5 up to now, but 7.4.5 behaves exactly the same.
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Activity monitor showing iOS process CPU load?

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And a process that is capable of running multiple threads of execution, can concurrently use more than 1 CPU, and thus consume greater than 100% of 1 CPU.

Osx 10.9 Mail & Safari High cpu load

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jvdstoel,
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I am running the example provided with Labview itself.
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This is a known problem. The reason for this is that the counter buffered operation uses a blocking method, so that buffer object spins in the kernal while waiting for the buffer to fill.
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Regards,
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App
lications Engineer
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CPU Load stays 100%

Hello,
im running into a problem with the FMS blocking our FMS
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- We have peaks with a lot of people chatting simultaniously
in "rooms" with
up to 50 people in the same room.
at around 1500/2000 simultanious chat connections the server
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manually restart
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meening does the FMS scale in a way that conected clients are
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1) The blue heat sink with letter "Military Class 3" next to the CPU
2) The blue heat sink with letter "OC Genie II" next to the CPU
3) The blue heatsink with letter "msi" located next to pci express slot
Because #1 and #2 are next to the CPU cooler, which should be forcing air around them, I am suspecting maybe the reading is from #3.
Old MSI boards had sensors for Northbridge and Southbridge, but the new ones, I am not sure where the reading is coming from.
====
Update: I've confirmed the reading is most likely from the "msi" heat sink... By directing more cool air toward that area, the motherboard temperature has dropped to about 34 to 35C.
====
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TZ01 => 30 C - never changes
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BT stack file TosBTMng.Exe causes 100% CPU Load

I'm also facing the problem that the Toshiba Bluetooth Manager (TosBtMng.exe) very often starts looping and causes a CPU load of 100%.
This happened with older versions of the Toshiba Bluetooth Stack and current version (5.1.0.12).
The affected system is a Tecra S1, internal BT-Modul and Windows XP SP2.
Installation of the BT-Stack went well and the notebook will boot succesfull while BT is enabled. I also checked for hidden COM-Ports and other hints found in this forum, no success.
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00042519 21:55:05 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM() -> BtCreateCOMM2()
00042520 21:55:05 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM2()
00042521 21:55:05 [7208] [TosBtAPI(PCCSTBTP)] BtCreateCOMM2 : InitCOMPort=COM6, CreateCOMPort=COM23
00042522 21:55:05 [7208] [TosBtAPI(PCCSTBTP)] BlockingSDPCall : Send COPYDATASTRUCT / FuncNumber=00008000(32768), Size=00000036(54)
00042523 21:55:05 [7208] [TosBtAPI(PCCSTBTP)] Receive WM_COPYDATA / fCloseAPI(BOOL)=0
00042524 21:55:05 [7208] [TosBtAPI(PCCSTBTP)] SetReturnBackData : Received COPYDATASTRUCT / FuncNumber=00008000(32768), Size=00000028(40)
00042525 21:55:05 [7208] [TosBtAPI(PCCSTBTP)] Call BlockingSDPCall() is returned.
00042526 21:56:14 [7208] [TosBtAPI(PCCSTBTP)] Call BtGetLocalInfo()
00042527 21:56:14 [7208] [TosBtAPI(PCCSTBTP)] BtGetLocalInfo2 : Input Paramers / pLocalBtDeviceInfo=00D9FE8C, plStatus=00D9FE84
00042528 21:56:14 [7208] [TosBtAPI(PCCSTBTP)] BlockingSDPCall : Send COPYDATASTRUCT / FuncNumber=00001000(4096), Size=00000030(48)
00042529 21:56:14 [7208] [TosBtAPI(PCCSTBTP)] Receive WM_COPYDATA / fCloseAPI(BOOL)=0
00042530 21:56:14 [7208] [TosBtAPI(PCCSTBTP)] SetReturnBackData : Received COPYDATASTRUCT / FuncNumber=00001000(4096), Size=0000003F(63)
00042531 21:56:14 [7208] [TosBtAPI(PCCSTBTP)] Call BlockingSDPCall() is returned.
00042532 21:56:17 [7208] [TosBtAPI(PCCSTBTP)] Call BtGetRemoteDeviceList2()
A new COM port is successfully created (COM23), and a few seconds later the CPU Load of TosBtMng goes up to 100%, but no API calls are performed. And if you wait long enough the phone gets connected and data can be transferred. However, very slowly.
Probably due to the high CPU load a next COM (COM24) port will be created sometime later and this process is then repeated again:
00042740 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] Receive WM_COPYDATA / fCloseAPI(BOOL)=0
00042741 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] SetReturnBackData : Received COPYDATASTRUCT / FuncNumber=00008007(32775), Size=00000041(65)
00042742 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] Call BlockingSDPCall() is returned.
00042743 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM() -> BtCreateCOMM2()
00042744 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM2()
00042745 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] BtCreateCOMM2 : InitCOMPort=COM6, CreateCOMPort=COM24
00042746 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] BlockingSDPCall : Send COPYDATASTRUCT / FuncNumber=00008000(32768), Size=00000036(54)
00042747 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] Receive WM_COPYDATA / fCloseAPI(BOOL)=0
00042748 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] SetReturnBackData : Received COPYDATASTRUCT / FuncNumber=00008000(32768), Size=00000028(40)
00042749 21:56:47 [7208] [TosBtAPI(PCCSTBTP)] Call BlockingSDPCall() is returned.
00042750 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtGetCOMMInfoList2()
00042751 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM() -> BtCreateCOMM2()
00042752 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM2()
00042753 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM() -> BtCreateCOMM2()
00042754 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM2()
00042755 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM() -> BtCreateCOMM2()
00042756 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM2()
00042757 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM() -> BtCreateCOMM2()
00042758 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM2()
00042759 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM() -> BtCreateCOMM2()
00042760 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtCreateCOMM2()
00042761 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtGetLocalInfo()
00042762 21:57:52 [7208] [TosBtAPI(PCCSTBTP)] Call BtGetLocalInfo()
Maybe this helps to locate the origin of the CPU load problem of the Bluetooth Manager.
Thanks
Gerhard

I was having the same problem, and it turned out to be the Data execution prevention settings. I had turned on (System->Advanced->Data execution protection) the execution prevention for all programs, causing TosBTMng.exe to max out one processor core all the time. The solution was to add TosBtMng.exe to the list of exceptions and restart. I'd looked high and low for a solution - hope this helps someone else!

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Adobe need to realize that once their great product with a lot of penetration into the web ad + ria market is starting loose its ground as they simply can't address ongoing issue on their poor flash plug-in performance other than on windows platform. There are a lot of flash enthusiast out there but this poor support from the Adobe doesn't help this much further. One of the reasons why other software vendors pushing for more open standard RIA platforms other than Flash based...
Only suggestion that I have with Adobe is that if you can not get it right then, it may help to open up flash player source to the community. I am pretty sure that there are a lot of developers out there who can help out to drive better code base for the player and in turn make flash more adopted by non non ms windows user base. At the moment, I have installed "Click2Flash" and "FlashBlock" to save majority of CPU cycle on my MacBook Pro. Imagine the impact on this for future Adobe product. All online ad will slowly move away from flash based and in turn loosing entire market share it has successfully built over the years... Well must note that MS isn't much better either... MS RDP client is permanently turned off from my system, now I'm using CoRD instead..
I sincerely hope to see some major performance improvements in near future.

90% cpu load on ubuntu 8.04

Hello all,
I made a visualization for sorting algorithms. (The code is to long to post it here)
I developed the app under this system:
Windows Vista Home x64
Dualcore ~2.6GHz
Java Version: 1.6.0 Update 7 32bit
and i have a cpu load of ~10% when i run the app.
I asked my friend to test the app under his OS:
Ubuntu 8.04
Dualcore ~2.2Ghz
Java Version: 1.6.0 Update 7 32bit
and he got a cpu load of over 90%!
We both had no running tasks in background. It was only the java app.
Are there any known issues about this problem or could could it be a coding problem?
Btw the programm uses round about 8 Threads.
TIA

mod235711 wrote:
I'm sry.
Ok i try to specify a little bit more.
e.g.: I have this code snippet to check whenever the algorithm has finished.
while (!algorithm.isIdle())
                              try
                                   sleep(1);
                              catch (InterruptedException e)
                                   clockRefresh.interrupt();
                                   setIdle();
                         }Without the sleep I have a cpu load of 50% (of course, because it is an endless loop until the algorithm has finished).
But with the sleep time it's just 1 or 2%.
I want to know if there is a known issue in the JVM that causes threads on some systems to use to much cpu load.
Or could it be a coding problem?
What do you think about the sleep time in this loop?
Or could the high cpu load be caused by bad coding?After reading this post I could not read further. There is the problem. You're doing a sleep(1) .....
Even in C that will most likely kill any cpu. Try to use joins: elegant and faster ;)

CPU load growing slowly at exact pace

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