CPU apparent usage of 100% when no applications running.

Quite frequently, and all day so far today, I have indications that the cpu is running at 100% even though no applications are running (it also shows that when they are and they don't seem particularly affected). I have tried putting to sleep for a period with no change, and then re-start, again with no change. I shut-down every night to economise, etc., and that after running Onyx to do a pretty full check and housekeeping under Automation in case anyone thinks that relevant.

If you check All Processes in Activity Monitor and there doesn't appear to be a culprit process, it may be that the SMB daemon is repeatedly launching and crashing, only to launch itself again, over and over. Try turning off Windows File Sharing in the Sharing pane of System Preferences and then turn it back on and see if that resolves the issue.
Hope this helps....
Dual 2.7GHz PowerPC G5 w/ 2.5 GB RAM; 17" MacBook Pro w/ 2 GB RAM - Mac OS X (10.4.8)

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My specs are:
MSI 970a-g43
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Good day everyone,
Why is my CPU getting at 100% eating over 700 000k of ram as soon as I open Itunes?
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It worked for me, for iTunes Store and Safari both!
amandav2 wrote:
I found a solution to my problem.
> start menu
> accessories,
> right click on the command prompt icon and choose "run as administrator".
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netsh winsock reset
hit enter
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After Adobe AIR installation, when the application run, License Agreement window is appear.

Adobe AIR is installed properly, but when you run the application, License Agreement window appears as shown in the picture.
The environment is Windows XP sp3.
I try this -> http://support.microsoft.com/mats/Program_Install_and_Uninstall/en-us
and try this -> http://www.winhelponline.com/blog/reset-the-registry-and-the-file-permissions-in-windows-x p/
and try this too -> http://www.microsoft.com/downloads/ko-kr/details.aspx?familyid=5A58B56F-60B6-4412-95B9-54D 056D6F9F4&displaylang=ko
But has not been resolved. T.T
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Could you try the solution in this post?
http://forums.adobe.com/message/4281537#4281537

My iTunes has started skipping when other applications run

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Howdy jackEVNorman,
It sounds like your iTunes playback is stopping when you switch to another program. I want to recommend starting iTunes in Safe Mode, and see if the symptoms persist.
iTunes: Troubleshooting issues with third-party iTunes plug-ins
http://support.apple.com/kb/ts3430
If the issue is not resolved, I would try performing a Safe Boot on Mac OS X.
Mac OS X: What is Safe Boot, Safe Mode?
http://support.apple.com/kb/HT1564?viewlocale=en_US
To start up into Safe Mode (to Safe Boot), follow these steps.
Be sure your Mac is shut down.
Press the power button.
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The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple logo and the progress indicator (looks like a spinning gear).
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Sterling

Noisy fan and overheating when few applications running!!

Hi
I'm having a problem with my fan on my macbook which is consistently on even though i'm not running that many applications or have just started up the computer. It also causes the bottom of my laptop to be particulary hot.
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Well technically all the HP stuff is optional. The computer will run fine and maybe even better without it. When I get a new laptop I always format it and load the operating system myself. Most recent HP models even have that option in the recovery (F11) routine...you have the option of installing OS only. You can also just run a free program called pc decrapifier (I kid you not) and remove anything with "HP" at the beginning.

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mDNSResponder is a process that searches and publishes content automatically. It's normal for it to be going non-stop in scanning IP networks. However, it should never take more than a 2-10% of your total CPU.
The MDNSResponder is just doing what's being asked of it. In short, there's an appllication/widget/etc. that's working at elevated rates. I was surprised, for example, that by signing up for Veoh, a small amount of bandwidth was being used - continually, without my knowing it - to support their whole network. The MDNSResponder helps achieve that. A network filter does the same thing. There is some service which is doing the same thing with your computer. It's magnified if you operate in Low Power Mode, since the stream of data just doesn't stop. It operates at elevated levels when an application (like iTunes) boots.
Find the application, and then decide if you're paying a fair price. You can do your own policework by playing around with Activity Monitor (which also uses it).

Application running too slow on sun T5440 but run normal on sun M3000

Hi all,
I have application running on sun server T5440 4x8x1.4 GHz, 64 GB RAM, application running very slow though load average too low. when I install my application on another server SUN M3000 (One CPU 1x8x2.5GHz, 8GB RAM), application run smoothly.
Here is my server T5440 info:
Code:
bash-3.00# uname -a
SunOS 5.10 Generic_142909-17 sun4v sparc SUNW,T5440
Psrinfo -pv
Code:
bash-3.00# psrinfo -pv
The physical processor has 64 virtual processors (0-63)
UltraSPARC-T2+ (chipid 0, clock 1414 MHz)
The physical processor has 64 virtual processors (64-127)
UltraSPARC-T2+ (chipid 1, clock 1414 MHz)
The physical processor has 64 virtual processors (128-191)
UltraSPARC-T2+ (chipid 2, clock 1414 MHz)
The physical processor has 64 virtual processors (192-255)
UltraSPARC-T2+ (chipid 3, clock 1414 MHz)
/etc/system
Code:
set semsys:seminfo_semopm=10000
set semsys:seminfo_semmsl=10000
set semsys:seminfo_semmni=1024
set max_nprocs=50000
set msgsys:msginfo_msgmnb=2097152
set msgsys:msginfo_msgmni=2560
set msgsys:msginfo_msgtql=2560
set shmsys:shminfo_shmmax=1073741824
set shmsys:shminfo_shmmni=1000
set rlim_fd_cur=10000
Ipcs
Code:
bash-3.00# ipcs -a
IPC status from as of Wed Jun 13 12:31:01 ICT 2012
T ID KEY MODE OWNER GROUP CREATOR CGROUP CBYTES QNUM QBYTES LSPID LRPID STIME RTIME CTIME
Message Queues:
q 62 0x1388 --rw-rw-rw- topx topx topx topx 0 0 2097152 0 0 no-entry no-entry 8:36:22
q 61 0x1387 --rw-rw-rw- topx topx topx topx 0 0 2097152 0 0 no-entry no-entry 8:36:22
q 60 0x1318 --rw-rw-rw- topx topx topx topx 0 0 2097152 0 0 no-entry no-entry 8:36:22
q 59 0x12a9 --rw-rw-rw- topx topx topx topx 0 0 2097152 9069 9071 10:25:38 10:25:38 8:36:22
q 58 0x100f --rw-rw-rw- topx topx topx topx 0 0 2097152 9069 9070 10:06:16 10:06:16 8:36:22
q 57 0xfa0 -Rrw-rw-rw- topx topx topx topx 0 0 2097152 9071 9069 10:25:38 10:25:38 8:36:22
q 56 0xf30 --rw-rw-rw- topx topx topx topx 0 0 2097152 0 0 no-entry no-entry 8:36:20
q 55 0xc27 -Rrw-rw-rw- topx topx topx topx 0 0 2097152 0 0 no-entry no-entry 8:28:14
q 54 0xbb8 -Rrw-rw-rw- topx topx topx topx 0 0 2097152 172 9066 10:47:08 10:47:08 8:28:14
T ID KEY MODE OWNER GROUP CREATOR CGROUP NATTCH SEGSZ CPID LPID ATIME DTIME CTIME
Shared Memory:
T ID KEY MODE OWNER GROUP CREATOR CGROUP NSEMS OTIME CTIME
Semaphores:
s 104 0x9c4 --ra-ra-ra- topx topx topx topx 3 12:31:00 8:36:20
s 103 0xa8c --ra-ra-ra- topx topx topx topx 1 8:36:20 8:36:20
s 102 0xd48 --ra-ra-ra- topx topx topx topx 1 8:36:20 8:36:20
s 101 0xce4 --ra-ra-ra- topx topx topx topx 1 8:36:20 8:36:20
s 100 0x26de --ra-ra-ra- topx topx topx topx 8 10:19:34 8:28:14
s 99 0xc1c --ra-ra-ra- topx topx topx topx 1 8:36:20 8:28:14
s 98 0xbb8 --ra-ra-ra- topx topx topx topx 1 8:43:50 8:28:14
s 97 0xaf0 --ra-ra-ra- topx topx topx topx 500 8:36:20 8:28:14
s 96 0xa28 --ra-ra-ra- topx topx topx topx 500 8:36:20 8:28:14
s 95 0x7ee --ra-ra-ra- topx topx topx topx 1 8:36:20 8:28:14
s 94 0x7e4 --ra-ra-ra- topx topx topx topx 1001 8:36:20 8:28:14
s 93 0x7da --ra-ra-ra- topx topx topx topx 220 8:36:20 8:28:14
s 92 0x7d5 --ra-ra-ra- topx topx topx topx 200 12:05:15 8:28:14
s 91 0x7d0 --ra-ra-ra- topx topx topx topx 200 8:56:42 8:28:14
s 90 0xc80 --ra-ra-ra- topx topx topx topx 2 12:31:01 8:27:52 –a
Prstat
Code:
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
9202 topx 1460M 893M sleep 59 0 0:16:37 0.2% integrity_check/1
12455 root 3880K 3600K cpu65 59 0 0:00:00 0.0% prstat/1
9080 topx 142M 130M sleep 59 0 0:00:52 0.0% intf_resp_low/1
9125 topx 102M 78M sleep 59 0 0:00:36 0.0% interface_vsc/1
9121 topx 88M 80M sleep 59 0 0:00:32 0.0% interface_tcu/1
9120 topx 89M 80M sleep 59 0 0:00:29 0.0% interface_rcm/1
9124 topx 87M 78M sleep 59 0 0:00:29 0.0% baplie_merge_v2/1
9122 topx 86M 78M sleep 59 0 0:00:28 0.0% interface_eih/1
9115 topx 88M 77M sleep 59 0 0:00:33 0.0% intf_batch_even/1
9114 topx 88M 77M sleep 59 0 0:00:39 0.0% intf_event/1
9117 topx 87M 78M sleep 59 0 0:00:32 0.0% interface_bxy/1
9118 topx 86M 78M sleep 59 0 0:00:29 0.0% interface_ppm/1
NPROC USERNAME SWAP RSS MEMORY TIME CPU
41 topx 334M 2237M 3.4% 0:30:17 0.3%
43 root 186M 195M 0.3% 0:14:45 0.0%
1 noaccess 152M 136M 0.2% 0:04:00 0.0%
1 smmsp 3688K 11M 0.0% 0:00:04 0.0%
1 lp 1208K 3880K 0.0% 0:00:00 0.0%
6 daemon 7264K 9944K 0.0% 0:00:26 0.0%
Total: 93 processes, 259 lwps, load averages: 0.40, 0.39, 0.39
Prstat –mL
Code:
bash-3.00# prstat -mL
PID USERNAME USR SYS TRP TFL DFL LCK SLP LAT VCX ICX SCL SIG PROCESS/LWPID
9202 topx 0.9 0.0 0.0 0.0 0.0 0.0 99 0.0 2 0 5 0 integrity_ch/1
9080 topx 0.4 0.0 0.0 0.0 0.0 0.0 100 0.0 5 0 20 0 intf_resp_lo/1
9114 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 13 0 66 0 intf_event/1
17282 root 0.1 0.2 0.0 0.0 0.0 0.0 100 0.0 20 1 324 0 prstat/1
9117 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 10 1 70 0 interface_bx/1
9118 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 10 1 70 0 interface_pp/1
9115 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 15 0 80 0 intf_batch_e/1
9121 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 10 0 70 0 interface_tc/1
9125 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 10 0 70 0 interface_vs/1
9120 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 10 0 70 0 interface_rc/1
9123 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 10 0 70 0 interface_vs/1
9124 topx 0.2 0.0 0.0 0.0 0.0 0.0 100 0.0 10 1 70 0 baplie_merge/1
9122 topx 0.1 0.0 0.0 0.0 0.0 0.0 100 0.0 8 0 56 0 interface_ei/1
9119 topx 0.1 0.0 0.0 0.0 0.0 0.0 100 0.0 8 0 56 0 interface_cp/1
9204 topx 0.1 0.0 0.0 0.0 0.0 0.0 100 0.0 15 1 1K 0 sys_check/1
259 root 0.0 0.0 0.0 0.0 0.0 0.0 100 0.0 13 2 98 7 in.mpathd/1
1 root 0.0 0.0 0.0 0.0 0.0 0.0 100 0.0 3 0 99 3 init/1
1337 noaccess 0.0 0.0 0.0 0.0 0.0 0.0 100 0.0 100 0 100 0 java/14
140 root 0.0 0.0 0.0 0.0 0.0 0.0 100 0.0 19 0 114 0 nscd/851
Total: 90 processes, 256 lwps, load averages: 0.40, 0.40, 0.39
Vmstat
Code:
bash-3.00# vmstat 1 10
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr m0 m1 m2 m3 in sy cs us sy id
0 0 0 87720712 60562856 173 645 199 44 44 0 0 0 0 0 0 886 2819 525 0 1 99
1 0 0 87563976 59743040 73 327 0 15 15 0 0 0 0 0 0 747 2831 439 0 1 99
0 0 0 87563656 59742808 61 306 0 15 15 0 0 0 0 0 0 770 2684 427 0 1 99
1 0 0 87563656 59742824 0 0 0 0 0 0 0 0 0 0 0 886 1302 525 0 1 99
1 0 0 87563656 59742816 62 305 0 15 15 0 0 0 0 0 0 722 2652 420 3 1 96
1 0 0 87563656 59742840 554 2777 0 139 139 0 0 0 0 0 0 959 9736 749 1 1 97
0 0 0 87563456 59742672 1155 5735 0 292 292 0 0 0 0 0 0 1113 17489 1145 1 3 96
1 0 0 87563656 59742840 0 0 0 0 0 0 0 0 0 0 0 845 1613 654 0 1 99
0 0 0 87563656 59742856 62 305 0 15 15 0 0 0 0 0 0 900 2647 526 0 1 99
0 0 0 87563656 59742856 62 304 0 15 15 0 0 0 0 0 0 683 2661 396 0 1 99
Mpstat
Code:
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 0 0 130 261 1 121 0 13 1 0 0 0 1 0 99
1 0 0 35 133 2 143 0 9 6 0 64 0 0 0 100
2 0 0 5 20 2 17 0 3 0 0 29 1 0 0 99
3 0 0 0 3 0 2 0 0 0 0 0 0 0 0 100
4 0 0 3 14 0 15 0 2 2 0 13 0 0 0 100
73 0 0 474330 77 3 0 7 0 2 0 2596 67 33 0 0
73 0 0 487701 37 0 0 7 0 8 0 2670 66 34 0 0
73 0 0 476377 14 0 0 8 0 1 0 2610 66 34 0 0
78 0 0 473950 11 1 0 7 0 13 0 2593 67 33 0 0
78 0 0 480562 9 0 0 7 0 4 0 2630 66 34 0 0
79 0 0 320989 14 1 0 8 0 0 0 1766 77 23 0 0
79 0 0 479148 9 0 0 7 0 8 0 2622 66 34 0 0
79 0 0 479426 13 0 0 7 0 2 0 2622 67 33 0 0
79 0 0 488949 9 0 0 8 0 13 0 2678 66 34 0 0
64 0 0 482229 15 2 0 8 0 7 0 2638 65 35 0 0
77 0 0 475571 14 1 0 7 0 8 0 2602 67 33 0 0
69 0 0 467795 22 1 0 7 0 40 0 2563 66 34 0 0
69 0 0 318623 9 1 0 7 0 8 0 1751 77 23 0 0
66 0 0 465179 92 1 2 8 0 62 0 2545 66 34 0 0
When my application running, some of CPU have IDLE state = 0 and hold the CPU while another CPU have IDLE state 100. I think this is my bottleneck but I cannot find any solution for solve that.
Netstat
Code:
bash-3.00# netstat -i
Name Mtu Net/Dest Address Ipkts Ierrs Opkts Oerrs Collis Queue
lo0 8232 loopback localhost 244022 0 244022 0 0 0
nxge0 1500 TOPX-01-DUMMY1 TOPX-01-DUMMY1 3594863 0 5801650 0 0 0
nxge1 1500 TOPX-01-DUMMY2 TOPX-01-DUMMY2 160954 0 151230 0 0 0
iostat
Code:
bash-3.00# iostat -xn
extended device statistics
r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.1 0.1 1.5 30.8 0.0 0.0 1.8 9.0 0 0 md/d0
0.0 0.1 0.8 30.8 0.0 0.0 0.0 9.9 0 0 md/d1
0.0 0.1 0.8 30.8 0.0 0.0 0.0 9.8 0 0 md/d2
0.0 0.0 0.0 0.0 0.0 0.0 0.0 15.2 0 0 md/d3
0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.9 0 0 md/d4
0.0 0.0 0.0 0.0 0.0 0.0 0.0 19.4 0 0 md/d5
0.0 0.0 2.2 1.5 0.0 0.0 0.8 7.4 0 0 md/d6
0.0 0.0 1.1 0.7 0.0 0.0 0.0 8.5 0 0 md/d7
0.0 0.0 1.1 0.8 0.0 0.0 0.0 8.2 0 0 md/d8
0.0 0.1 0.4 0.6 0.0 0.0 7.6 10.0 0 0 md/d9
0.0 0.1 0.2 0.6 0.0 0.0 0.0 9.1 0 0 md/d10
0.0 0.1 0.2 0.6 0.0 0.0 0.0 7.8 0 0 md/d11
0.0 0.0 0.0 0.0 0.0 0.0 0.1 10.4 0 0 md/d12
0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.5 0 0 md/d13
0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.4 0 0 md/d14
0.1 0.5 2.1 32.3 0.0 0.0 0.0 9.9 0 0 c0t0d0
0.1 0.5 2.1 32.3 0.0 0.0 0.0 9.8 0 0 c0t1d0
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 c1t0d0
0.9 0.9 125.3 123.1 0.0 0.1 0.0 34.2 0 2 c4t600144F0CC00C29A00004D1E456F0003d0
0.3 0.7 20.7 53.9 0.0 0.0 0.2 8.2 0 0 c4t600144F0CC00C29A00004D1E43880001d0
0.1 0.2 50.7 111.5 0.0 0.0 0.0 59.1 0 1 c4t600144F0CC00C29A00004D1E453E0002d0
Please help me find the bottleneck of my T5440 server?Thanks so much for all your help.

Moderator Comment and Action:
@ O.P.,
You cross-posted this to at least two other forum web sites:
http://www.linuxquestions.org/questions/solaris-opensolaris-20/application-running-too-slow-on-sun-sparc-t5440-but-run-normal-on-sun-m3000-4175411155/
http://www.unix.com/solaris/189945-application-running-too-slow-sun-sparc-t5440-but-run-normal-sun-m3000.html
... and didn't think that was important enough to simply mention the fact.
Timestamps suggest that OTN was the last place you posted to.
Poor forum etiquette.
Why would anyone spend the time to try to give help that you have already received elsewhere? That's a waste of their time.
(Yes, you already received the suggestion to use Dtrace in one of those other sites.)
This thread is locked as irrelevant.

Java Web Start error message when trying to run vSphere1.2 compliance checker

It installed fine but a javaws usage message displayed when attempting to run. Seems like this might be some kind of Java environment problem on the Windows 7 Pro desktop. Not very familiar with Microsoft, any ideas and/or suggestion?.

Thanks for your suggestions, I will look into them.
One assumption I made is since the install completed without incident the program was able to locate any needed resources.
Another assumption is since I received an error message from javaws then itself was being located - just lacking something else it needed.
Ran javaws from command prompt, received same usage message. Apparently using 64 bit 1.7.0_13, didn't see a Java folder in the 32 bit Program Files so would that be the problen? That 32 bit Java version is needed to run this? Java Web State 10.13.3.20-fcs.
I'm the administrator of the system, so privilege is not an issue
In Properties/Shortcut, verified that the .jar file was pathed correctly
Target -> "C:\Program Files\Java\jre7\bin\javaws.exe" -jar "C:\Program Files (x86)\VMware\VMware Compliance Checker for vSphere\vmcc.jar"
Start in -> "C:\Program Files (x86)\VMware\VMware Compliance Checker for vSphere\"

CPU usage 100% when WLS 10.3.3 is idle on OS X 10.6.4 (Snow Leopard)

I've installed WLS 10.3.3 on OS X 10.6.4 and executed using the instructions in the README (including setting the MEM_ARGS).
Upon startup, the CPU usage spikes to ( then stays ) around *104%* ( dual-core CPU ); this, of course cripples the computer to where all running applications suffer. Attempting to access the console, brings the system to it's knees. This happens even if it is the only (non-system) application running.
We need to be able to run WLS on our local development machines (MacBook Pros from 2007-present).
We are currently running OAS (OC4J) on the machines with out any issues (CPU usage at OAS idle = ~1.1%).
Are there any WLS performance settings that can be adjusted to alleviate the CPU utilization issue?
My System Info:
Model Name:     MacBook Pro
Model Identifier:     MacBookPro4,1
Processor Name:     Intel Core 2 Duo
Processor Speed:     2.4 GHz
Number Of Processors:     1
Total Number Of Cores:     2
L2 Cache:     3 MB
Memory:     4 GB
Edited by: user8664206 on Aug 3, 2010 8:54 AM

Thank you!
The key was modifying the "setDomainEnv.sh" file (this file is generated using the domain GUI configuration tool).
I added the following at the top of the script (just below the comments):
JAVA_VENDOR="Sun"
export JAVA_VENDOR
I modified:
SUN_JAVA_HOME=""
export SUN_JAVA_HOME
...to be:
SUN_JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home"
export SUN_JAVA_HOME
Now when I execute the container, it consumes only 0.2% of the CPU.
Thanks again,
Jim

High cpu usage when moving application windows

Hello all,
I have two machines with arch installed:
- an eeepc 701 surf/intel gpu(xorg driver) with xfce
- an amd 3800+ X2/nvidia 8860 gt(proprietary driver) with kdemod3(also checked with xfce4)/arch amd64 installed.
I noticed that when i move a window of an application(for example konsole, etc..) too fast i get high cpu usage(30-40 %), when checking with htop.
Is it normal that the X server uses the cpu so much when moving a window??
EDIT: up to now i tested it in a friends windows machine, and it happens exactly the same, so i guess is normal. It seems i need to be informed better about how X works :-)
Last edited by mechmg93 (2008-10-15 08:04:10)

today i switced back my desktop system to debian unstable and tried to see what the difference is concerning this problem.
I found out that in kde3 the solution to the "problem" is debians kde default configuration about window behaviour.
Especially the one mentioned below :
In debian this is not ticked and this has as a result zero cpu usage when windows are moved.
Last edited by mechmg93 (2008-10-23 18:36:58)

Vtserver.exe cpu usage at close to 100% when using Media Manager

On an Intel P4 PC running 32-bit Windows XP (sp-3), 2 GB of RAM and 500 GB hard disk, hardwired 100 Mbs connection:
When attempting to stream video from the MM PC to the DVR, the video is choppy. Upon examination of the processes running on the MM PC, VTServer.EXE is running at about 90-100% when streaming video. There is plenty of available memory.
Media Manager software has been uninstalled and reinstalled.
MM video component check has been run.
New MM version check run - no new version.
No SW firewall software/hardware in place.
Virus Scan disabled.
DVR has been rebooted.
Router has been rebooted.
Videos play without problem on the PC either via Windows Media Player or via the Media Manager player. The problem is when they are streamed to the DVR (choppy video/audio)
When playing videos, choppy video and audio is observed.
Does anyone have an idea what the problem is?

ak2,
Pls check your PMs. Thanks.
Regards,
Chris
Christian
Verizon Telecom
Fiber Solution Center
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CPU/memory usage of AIR application under Mac 10.4.10

As my AIR application uses a lot of CPU/memory under Mac
(seems better in Windows), I decide to do some basic testing. I
create several applications with different level of complexities.
Below is a table of CPU/memory usage when the application is simply
sitting there. A brief description of the application can be found
in the end of each line.
Here are some results:
[1] Even for an empty application, CPU usage is not zero
(most non-AIR application has 0 CPU usage when doing nothing). Also
the memory usage is huge, comparable to Finder on my computer.
[2] Empty application has 7 threads running.
[3] Indetermined progress bar costs a lot of CPU; and I guess
any other animation costs a lot of CPU too. But if they are
invisible they are fine.
[4] running timer costs CPU.
PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE
VSIZE application
10093 adl 1.8% 0:01.85 7 100 292 15.0M 13.8M+ 22.8M 444M
empty
10094 adl 1.9% 0:01.55 7 100 299 15.2M 14.0M+ 23.1M 444M
label
10097 adl 1.9% 0:01.48 7 100 302 15.3M 13.4M 23.7M 445M
progress bar
10095 adl 5.7% 0:02.40 7 100 302 15.4M- 13.2M 23.5M 445M
progress bar (indetermined)
10125 adl 15.9% 0:03.66 7 100 304 15.7M- 13.4M 23.9M 445M 5
progress bar (indetermined)
10126 adl 29.7% 0:10.39 7 100 325 16.7M+ 13.4M+ 24.9M+ 445M
10 progress bar (indetermined)
10128 adl 1.9% 0:01.34 7 100 324 16.1M 13.7M 24.3M 445M 10
progress bar (indetermined), visible=false
10136 adl 1.8% 0:00.76 7 100 323 16.5M+ 13.9M+ 24.7M- 450M
Empty datagrid
10147 adl 1.9% 0:01.60 7 101 328 16.1M 13.8M+ 24.5M- 447M
TabNavigator with two empty VBox children
10138 adl 1.8% 0:01.59 7 100 372 19.4M 13.9M 27.7M 453M
datagrid with 10000 simple rows
10131 adl 3.1% 0:02.38 7 110 348 25.7M 19.3M 34.8M 458M 10
Empty native windows
10143 adl 1.9% 0:00.99 7 100 296 15.1M 13.9M+ 23.2M- 444M
Timer, delay = 100ms, calling an empty function
10145 adl 4.1% 0:02.35 7 100 298 15.0M 14.0M+ 23.2M- 444M
Timer, delay = 100ms, calling function update label position
As to my own application, it's much bigger than these simple
ones. The CPU usually stablizes to 20% and VSIZE is about 1G. There
is no timer running. When I leave the application open for a few
hours, the application will eventually freeze and I have to kill
it.
I am wondering if there are any articles or documents
explaining AIR's CPU/memory usage. And also if AIR is planning to
improve the performance in the next release.

James, thank you for the very fast answer! I did various tests on the weekend on my computer and computer of my friend.
And I can say, that Debug flag doesn't affect memory consumption. They still eat memory. My steps to reproduce are as follows:
(Windows 7 32 bit)
Photoshop CS5:
1) set HKEY_CURRENT_USER\Software\Adobe\CSXS2Preferences\PlayerDebugMode to 0
2*) check HKEY_LOCAL_MACHINE\SOFTWARE\Adobe\CSXS2Preferences (just in case)
3) Compile HelloPhotoshop example to ZXP and install via Extension manager
4) restart computer
5) Run Photoshop CS5 - Memory consumption: 100 096 KB
6) Open HelloPhotoshop and close it 10 times
7) Memory consumption: 155 840 - 5,574 MB per one close/open
Maybe a garbage collector is expected to run and free this memory, but it never happened in my case. The memory pool was increasing to 1 GB when I was working with one of my panels - with no documents open in Photoshop
In InDesign I tried the same thing with HelloInDesign ( I had to close the panel completely and then open with Window | Extensions | HelloInDesign)
Memory consumption on start: 118 516
Memory consumption after 10 open/close cycles: 197 516
It's 7,9 MB per one close/open
It's the simpliest panel test. When I'm using AIR libraries the memory usage is increasing a lot faster.

ITunes 9.1 - CPU goes to 100% when playing prot. AAC - clicks and gaps

Since downloading 9.1, there are clicks and gaps when I play protected AAC songs on iTunes. Songs play fine with QuickTime player. When a protected song is played in 9.1, iTunes absorbs all available CPU.
I have followed all remediation steps in the apple.com support site including turning off sound enhancer, checking for driver updates, etc. I have also set buffering to maximum.
If I play an AAC protected song for more than a few seconds it becomes impossible to pause it and all other applications running freeze. This happens even when there are no other applications running . . . it is not a conflict problem with other applications. itunes absorbs whatever cpu there is left to take. Consistently using 60-90% of CPU w/ total CPU @ 100% constantly (when an AAC protected song is played).
iTunes works fine as long as the song is not protected.
I cannot find anything on the apple site to allow me to go back to 9.0. Why can't apple allow one to step back to the previour version? I am seriously looking at getting permanently off of iTunes. Each new release is harder to use and performs more poorly.

Unfortunately I have the same problem since I installed Itunes 9.1 anche this problem is shown in a lot of thread.....
I am seriously disappointed cause I BOUGTH these music and it's unbelieveble that Itunes doesn't play its music (sorry for my english...I am writing from Italy...).
I am afraid that it's an Intel Atom processor conflict.
I have already update everything was possible to update (driver, codecs, setting audio configuration, energy saving...) but I didn't find any stuff to solve this issue...

CPU apparent usage of 100% when no applications running.

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