Hyperthreading on VM Machine - cpu usage differs when enabled or not?

hi Everyone
I think my question is related to this thread
Hyperthreading on VM Machine
I am a newbie to Oracle VM, so would really appreciate any help. Here is the scenario:
OVM server/manager version: 3.0.2
Processor: Intel Westmere
Workload: light
vcpu/VM = 1
VM type: PVM
VM OS: OE Linux 6.1
When Hyperthreading is turned on in the BIOS, OVM manager GUI shows around 4% server cpu util. However, with hyperthreading off (each VM still assigned I vcpu) the server cpu util jumps to 7-8% range. Is such a big difference normal? From what I have seen in the forums seem to indicate otherwise. I would really appreciate it if anyone can provide some direction. Thanks.
Aziz

Moderator Advice and action:
@ user 915012,
Welcome to the forum.
You originally appended your post to that old and long-dead referenced thread.
That was a hijack action and is considered poor forum etiquette because you were grabbing the discussion away from that other original poster.
Your post has been split away from that thread and made to stand on its own with a URL to the thread pasted into the body of your text. Now people can pay attention directly to you.

Similar Messages

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

CPU Usage high when USB eneabled

I have a PC running Windows XP with a MS6340 (V5) motherboard and Athlon XP 1800 processor.
When getting a poor response I noticed that the performance tab on Task manager showed that CPU usage was wildly fluctuating between 50-60%. This was farily soon after booting up and nothing else was running. The Processes tab on task manager showed that there were no processes running which got anywhere near accounting for this.
I downloaded a program called Iarsn TaskInfo2002 which shows that the CPU Usage was because of something called Interrupts Time placeholder and (to a lesser extent) DPC Time Placeholder.
Anyway the interesting thing is that by disabling my USB ports (via device manager) and then rebooting the problem was gone. (Interrupts Time and DPC Placeholders don't clock anything.)
Now, however, I have a USB camera and Printer and so MUST get my USB ports enabled again.
I can enable them after booting and then the problem is not as bad, but I nearly always forget to disable them again before shutting down and then next time its a pain.
Is this likely to be
A motherboard problem,
BIOS problem
Windows XP problem
or me being stupid.
Any (polite) advice would be gratefuilly received
SIDDY

Hi,
It's not a motherboard problem.
As the board only provides the ports, nothing more.
The program that queries the ports for data is most likely the problem.
Try deinstalling the printer or camera software, see what happens.

Why is the CPU usage different ? I used LOAD_BALANCE option.

I used a oracle 11.2.0.2 in RAC 2 nodes.
And I used LOAD_BALANCE option in the WAS pool configuration
jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.10.118)(PORT=1522))(*LOAD_BALANCE=YES*)(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=NOFFICE)))
But the CPU usage is different between two system. Usually it is 6:4, Sometimes it is 7:3.
Is it normal?
I want to a balance in CPU Usage (5:5).
If it is the better solution about a Load balance. i want to know it.

You are partially correct which is another way of saying you are incorrect too.
There are two types of load balancing ... server side and client side. There are also questions with respect to how the client is connecting, we don't know, whether the session load is identical, etc. which the OP has not stated.
The only thing I can absolutely say at this point is that what the OP has seen is normal and I can't see any reason why, unless the skew is very large and very permanent, anyone should care.
To the OP: Let's step back from the "what I want" statement and go to the basis of your inquiry: "Why do you care? Please provide a business reason and cite specific performance metrics, from your system, showing the problem you are trying to address. Then perhaps we can help you.

CPU usage 99% when painting ScrollPane

I have a scollpane with specified view by setViewportView. When change the dimension of the view and the size is less than the dimension of viewport of the scrollpane, the cpu usage of javaw.exe is up to 99% and other components are painted slowly.
This problem occurs only in JRE1.4. The class files are run normally in JRE1.3.
Does anyone know the reason?

How much FREE RAM do you have when this occurs. It's easy to tell, when it beach balls open Activity Monitor (Applications - Utilities - Activity Monitor) click the System Memory tab and note how much FREE RAM is listed. If it's 500MB or less it's time for a RAM upgrade.

Cpu usage high when loading cache group

Hi,
What are the possible reasons that results high cpu usage when loading read-only cache group with big root table (~ 1 million records)? I have tried setting Logging=0 (without cache agent), 1 or 2 but it doesn't help. Are there any other tuning configuration required to avoid high cpu consumption?
ttVersion: TimesTen Release 6.0.2 (32 bit Solaris)
Any help would be highly appreciated. Thanks in advance.

High CPU usage is not necessarily a problem as long as the CPU is being used to do useful work. In that case high CPU usage shows that things are being processed taling maximum advantage of available CPU power. The single most common mistake is to not properly size the primary key hash index in TimesTen. Whenever you create a table with a PK in TimesTen (whetehr it is part of cache group or just a standalone table) myou must always specify the size of the PK hash index using the UNIQUE HASH ON (pk colukns) PAGES = n clause (see the documentation). n should be set to the maximum number of rows expected in the table / 256. The default is sized for a table of just 4000 rows! If you try and load 1M rows into this table we will be wasting a lot of CPU time serially scanning the (very long) hash chains in each bucket for every row inserted...

NIScope CPU usage 100% when waiting for trigger

Hello, I'm using a NI 5102 DAQ card and want to acquire single bursts. However when the Multi Fetch.vi is waiting for a trigger (and this can be up to a minute) the CPU usage goes up to 100 %. Is there any way to overcome this?
Attachments:
Current_ProjectSWEEP2withoutAgilentNEWScopeWrite_to_FilePOSTED.vi ‏98 KB
ScopeSUB.vi ‏108 KB

Yea, Ive noticed the same thing. The niSope dll in the Fetch.vi grabs 100% CPU if timeout is larger than 1 or 2 seconds.
Has anyone talked to NI about this? The problem is in that dll which is polling the PCI Scope Card. That dll is not giving back any CPU if it waits for more than a second or two.
John Dailing
[email protected]

What Causes High CPU Usage Even When PC is Idle

How can I fixed the high cpu usage on my pc?

mcmillan wrote:
rohankolay wrote:Right now i have kernel26-2.6.35.4 which i updated on 27 aug. That is around the same time the problem began.Should i downgrade it to kernel26-2.6.35.3 or kernel26-2.6.34.3?
I think most people have been seeing the problems in any of the 2.6.35 kernels, so 2.6.34.3 would be my recommendation
+1
And put kernel26 in IgnorePkg.

CPU usage displayed by top does not make sense.

Here is the CPU usage displayed by top (while running VirtualBox with a guest Windows 7, the Archlinux machine is the host).
top - 11:49:07 up 54 min, 3 users, load average: 1.80, 1.18, 0.74
Tasks: 143 total, 1 running, 142 sleeping, 0 stopped, 0 zombie
%Cpu0 : 2.2/7.7 10[|||||||||| ]
%Cpu1 : 2.2/7.7 10[|||||||||| ]
%Cpu2 : 1.8/8.2 10[|||||||||| ]
%Cpu3 : 2.2/8.8 11[||||||||||| ]
GiB Mem : 79.4/3.796 [ ]
GiB Swap: 5.3/3.356 [ ]
PID USER PR NI VIRT RES %CPU %MEM TIME+ S COMMAND
3504 oesser 20 0 4209.1m 2.396g 173.3 63.1 5:11.05 S VirtualBox
2688 oesser 20 0 997.1m 273.6m 0.0 7.0 0:27.96 S firefox
3204 oesser 20 0 949.7m 64.3m 0.0 1.7 0:02.24 S VirtualBox
2812 oesser 20 0 1015.5m 63.6m 0.0 1.6 0:02.10 S VirtualBox
3068 oesser 20 0 882.8m 60.5m 0.0 1.6 0:01.66 S VirtualBox
990 root 20 0 393.5m 40.3m 6.7 1.0 0:50.11 S Xorg
2235 oesser 20 0 949.8m 22.2m 0.0 0.6 0:05.03 S VirtualBox
1134 oesser 20 0 435.5m 16.4m 0.0 0.4 0:02.57 S xfce4-terminal
318 ntp 20 0 105.3m 15.4m 0.0 0.4 0:00.14 S ntpd
1029 oesser 20 0 208.0m 13.5m 0.0 0.3 0:05.94 S xfwm4
2220 oesser 20 0 832.5m 12.8m 0.0 0.3 0:05.47 S VBoxSVC
1038 oesser 20 0 612.8m 11.9m 0.0 0.3 0:00.68 S xfdesktop
1033 oesser 20 0 385.2m 11.6m 0.0 0.3 0:01.47 S xfce4-panel
1120 oesser 20 0 265.4m 8.3m 0.0 0.2 0:03.82 S panel-14-cpugra
1119 oesser 20 0 196.3m 7.0m 0.0 0.2 0:00.03 S panel-4-systray
1093 oesser 20 0 299.5m 4.4m 0.0 0.1 0:00.02 S gvfs-udisks2-vo
1059 oesser 20 0 774.4m 4.3m 0.0 0.1 0:01.14 S AgentAntidote.b
2778 oesser 20 0 16.7m 4.3m 0.0 0.1 0:00.02 S bash
1019 oesser 20 0 357.8m 4.2m 0.0 0.1 0:00.05 S xfce4-session
560 root 20 0 415.1m 4.1m 0.0 0.1 0:00.44 S udisksd
1037 oesser 20 0 363.3m 3.7m 0.0 0.1 0:00.10 S xfsettingsd
1380 oesser 20 0 16.7m 3.6m 0.0 0.1 0:00.09 S bash
1064 oesser 20 0 214.3m 3.3m 0.0 0.1 0:00.01 S gvfsd
3746 oesser 20 0 34.9m 3.3m 0.0 0.1 0:00.00 R top
1121 oesser 20 0 489.4m 3.2m 0.0 0.1 0:00.08 S panel-2-mixer
514 root 20 0 219.0m 3.2m 0.0 0.1 0:00.03 S upowerd
1035 oesser 20 0 202.9m 3.1m 0.0 0.1 0:00.02 S Thunar
2212 oesser 20 0 150.4m 3.0m 0.0 0.1 0:02.77 S VBoxXPCOMIPCD
1022 oesser 20 0 34.6m 2.8m 0.0 0.1 0:00.02 S xfconfd
1139 oesser 20 0 16.7m 2.7m 0.0 0.1 0:00.03 S bash
1058 oesser 20 0 462.8m 2.6m 0.0 0.1 0:00.04 S xfce4-volumed
1048 oesser 20 0 268.2m 2.6m 0.0 0.1 0:00.04 S xfce4-power-man
1067 oesser 20 0 42.6m 2.5m 0.0 0.1 0:00.00 S gconfd-2
1045 oesser 20 0 365.9m 2.4m 0.0 0.1 0:00.10 S polkit-gnome-au
1 root 20 0 33.5m 2.3m 0.0 0.1 0:00.36 S systemd
1012 oesser 20 0 30.7m 2.1m 0.0 0.1 0:00.09 S dbus-daemon
1077 oesser 20 0 357.7m 2.0m 0.0 0.1 0:00.00 S gvfsd-fuse
446 polkitd 20 0 505.5m 1.9m 0.0 0.1 0:00.04 S polkitd
422 oesser 20 0 34.9m 1.9m 0.0 0.0 0:00.00 S systemd
1073 oesser 20 0 30.3m 1.9m 0.0 0.0 0:00.05 S dbus-daemon
266 dbus 20 0 30.6m 1.8m 0.0 0.0 0:00.03 S dbus-daemon
999 root 20 0 72.4m 1.8m 0.0 0.0 0:00.00 S lxdm-session
179 root 20 0 34.2m 1.8m 0.0 0.0 0:00.08 S systemd-udevd
1106 oesser 20 0 366.8m 1.7m 0.0 0.0 0:00.00 S gvfsd-trash
1086 oesser 20 0 120.2m 1.7m 0.0 0.0 0:00.17 S at-spi2-registr
263 root 20 0 14.8m 1.7m 0.0 0.0 0:00.01 S systemd-logind
297 root 20 0 20.1m 1.6m 0.0 0.0 0:00.30 S lxdm-binary
1138 oesser 20 0 8.2m 1.3m 0.0 0.0 0:00.00 S gnome-pty-helpe
1000 oesser 20 0 13.7m 1.3m 0.0 0.0 0:00.00 S sh
144 root 20 0 29.7m 1.3m 0.0 0.0 0:00.09 S systemd-journal
459 oesser 20 0 161.7m 1.2m 0.0 0.0 0:00.06 S gpg-agent
307 root 20 0 4.4m 1.0m 0.0 0.0 0:00.10 S dhcpcd
1062 oesser 20 0 255.6m 1.0m 0.0 0.0 0:00.00 S at-spi-bus-laun
1011 oesser 20 0 17.6m 0.9m 0.0 0.0 0:00.00 S dbus-launch
423 oesser 20 0 80.0m 0.0m 0.0 0.0 0:00.00 S (sd-pam)
457 oesser 20 0 13.0m 0.0m 0.0 0.0 0:00.00 S ssh-agent
1025 oesser 20 0 13.0m 0.0m 0.0 0.0 0:00.00 S ssh-agent
2 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S kthreadd
3 root 20 0 0.0m 0.0m 0.0 0.0 0:02.94 S ksoftirqd/0
5 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/0:0H
7 root 20 0 0.0m 0.0m 0.0 0.0 0:02.39 S rcu_preempt
8 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S rcu_sched
9 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S rcu_bh
10 root rt 0 0.0m 0.0m 0.0 0.0 0:00.00 S migration/0
11 root rt 0 0.0m 0.0m 0.0 0.0 0:00.00 S watchdog/0
12 root rt 0 0.0m 0.0m 0.0 0.0 0:00.00 S watchdog/1
13 root rt 0 0.0m 0.0m 0.0 0.0 0:00.00 S migration/1
14 root 20 0 0.0m 0.0m 0.0 0.0 0:02.55 S ksoftirqd/1
16 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/1:0H
17 root rt 0 0.0m 0.0m 0.0 0.0 0:00.00 S watchdog/2
18 root rt 0 0.0m 0.0m 0.0 0.0 0:00.00 S migration/2
19 root 20 0 0.0m 0.0m 0.0 0.0 0:01.28 S ksoftirqd/2
21 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/2:0H
22 root rt 0 0.0m 0.0m 0.0 0.0 0:00.00 S watchdog/3
23 root rt 0 0.0m 0.0m 0.0 0.0 0:00.00 S migration/3
24 root 20 0 0.0m 0.0m 0.0 0.0 0:00.47 S ksoftirqd/3
26 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/3:0H
27 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S khelper
28 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S kdevtmpfs
29 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S netns
30 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S perf
31 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S khungtaskd
32 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S writeback
33 root 25 5 0.0m 0.0m 0.0 0.0 0:00.00 S ksmd
34 root 39 19 0.0m 0.0m 0.0 0.0 0:00.27 S khugepaged
35 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S crypto
36 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kintegrityd
37 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S bioset
38 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kblockd
39 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S devfreq_wq
41 root 20 0 0.0m 0.0m 0.0 0.0 2:31.11 S kswapd0
42 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S fsnotify_mark
47 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kthrotld
51 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S deferwq
83 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S ata_sff
84 root 20 0 0.0m 0.0m 0.0 0.0 0:00.38 S kworker/3:1
85 root 20 0 0.0m 0.0m 0.0 0.0 0:00.48 S kworker/1:2
86 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_eh_0
87 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_tmf_0
88 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_eh_1
89 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_tmf_1
90 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_eh_2
91 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_tmf_2
92 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_eh_3
93 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_tmf_3
94 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_eh_4
95 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_tmf_4
96 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_eh_5
97 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S scsi_tmf_5
100 root 20 0 0.0m 0.0m 0.0 0.0 0:02.53 S kworker/u8:4
106 root 0 -20 0.0m 0.0m 0.0 0.0 0:01.39 S kworker/0:1H
107 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.57 S kworker/1:1H
108 root 0 -20 0.0m 0.0m 0.0 0.0 0:05.04 S kworker/2:1H
111 root 20 0 0.0m 0.0m 0.0 0.0 0:00.16 S kworker/2:2
120 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.80 S kworker/3:1H
123 root 20 0 0.0m 0.0m 0.0 0.0 0:00.07 S jbd2/sda2-8
124 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S ext4-rsv-conver
152 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/3:3
159 root 20 0 0.0m 0.0m 0.0 0.0 0:00.88 S kworker/0:2
203 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S edac-poller
204 root -51 0 0.0m 0.0m 0.0 0.0 0:00.00 S irq/27-mei_me
212 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S acpi_thermal_pm
238 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kpsmoused
241 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S hd-audio1
246 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S hd-audio0
258 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S led_workqueue
269 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kvm-irqfd-clean
298 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S cfg80211
301 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S kfd_process_wq
303 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S ttm_swap
379 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S radeon-crtc
380 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S radeon-crtc
381 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S radeon-crtc
382 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S radeon-crtc
383 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S radeon-crtc
384 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S radeon-crtc
886 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S iprt
1201 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/1:0
1698 root 20 0 0.0m 0.0m 0.0 0.0 0:00.46 S kworker/2:1
1922 root 0 -20 0.0m 0.0m 0.0 0.0 0:00.00 S dio/sda2
1923 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/u8:0
3098 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/0:1
3722 root 20 0 0.0m 0.0m 0.0 0.0 0:00.00 S kworker/0:0
So VirtualBox is using 173% of my CPU time (how is this possible?), but I see only 1% or 2% on each logical CPU. My CPU is an "i3-3240 CPU @ 3.40GHz" (2 physical cores, 4 logical cores) and the kernel is 3.19.3-3-ARCH (latest official Archlinux kernel). How is this possible? What's happening here? Is it a bug or do I completely misunderstand what these stats mean?

Top does add up your multicore usage. So if a process is using two cores at 100% it is using 200%.
However something does not add up in correctly in your case.
I've found top to be kind of unreliable in multicore (especially with hyper threading) systems.

High cpu usage by oracle.exe even when oracle instance is down

hi,
I made my oracle instance down , but in Windows Task manager , it is showing 88-90% CPU usage.This only goes off when i write net stop oracleservicemisdb from command prompt.
Help me.
Thanks
Deepak Kumar Sahoo

No, i don't have any other software related to oracle running on our server . We have tomcat and Weblogic server running on same machine. But oracle.exe is showing more than 75% cpu usage even when the instance is down.
thanks
Deepak Kumar

High CPU Usage On client application when upgrade remote SQL database

Hi,
Is anyone here encountered very high CPU usage after upgraded the database from SQL 2005 to SQL 2012? Following describes my issue.
I have my client application running on Windows 7 that access to central database (SQL 2005) on Windows server 2003 using ODBC connection, this client application basically query data and perform data insert and update. There are a number of this similar
clients connected to the database.
Due to slowness of the database server, company decided to upgrade the database server to SQL 2012 and also new hardware runing Windows Server 2012. There is no change on the client application and client hardware and the client application still using the
same ODBC connection to query, insert or update the new database server.
The problem I am now experiencing now is that my client PC where my client application running the CPU usage is very high almost hitting 100% when accessing to the central database. I am also noticed this program lsass.exe that utilized almost 40-50% of
the CPU time when client application accessing the central database.
Is anyone here know, why client PC CPU usage 100% when access to upgraded SQL 2012 database? What is lsass.exe program doing, it only appear when accessing to database server. How to reduce the CPU usage on client?
Thanks.
Chee Wee.

Hello,
After upgrading, please rebuild indexes and update statistics on the databases.
http://www.mssqltips.com/sqlservertip/1367/sql-server-script-to-rebuild-all-indexes-for-all-tables-and-all-databases/
http://www.mssqltips.com/sqlservertip/1606/execute-update-statistics-for-all-sql-server-databases/
Configure maxdop on the instance.
http://blogs.msdn.com/b/sqlsakthi/archive/2012/05/24/wow-we-have-maxdop-calculator-for-sql-server-it-makes-my-job-easier.aspx
If the above does not solve the issue, let us know.
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com

High cpu usage when the system is idle

I do have a high cpu usage problem when the system is idle. I bought the laptop (lenovo x230 tablet) with windows 7 installed in it. Then upgraded to windows 8. But ever since I have problems with high cpu usage by the system even when the computer is idle.
Only the system by itself uses around 30% of the cpu all the time. I ran xperf, and here is the result of it:
http://sdrv.ms/Kj6CFN
I appreciate any help you can provide.
Thanks,

Hi,
I'm sorry for that the log you provide can't be opened on my computer. While according to your description, it should had a special process that consume CPU usage when system idle Iguess, isn't it?
You can use
Process Explorer to monitor the process activity, may be we can find the reason of this problem.
Note: We can use Process Explorer to check the Stack of every process then analyize the problem in deep.
To gave a better insight about this problem, you can take a ScreenShot for this problem and provide the picture here.
Roger Lu
TechNet Community Support

High CPU & Memory issues - Excessive and unnecessary CPU usage in Firefox for Windows (see also questions1003966 & 998289)

I am using the latest version of Firefox, 32.0.1, on an HP Pavilion dv7-4141sa laptop computer, running Windows 8.1 Pro 64-bit. There should be more than enough power here to run a browser without any problem, yet the computer is regularly being overloaded by the browser's resource usage.
I am currently measuring typical average CPU usage of 45% - with the browser minimised. That is to say, Firefox is not doing any browser jobs - it is not drawing on the screen - but it is using the most CPU of any process currently running. Why?
I am an ex-software engineer, and my understanding of current application development technology is limited, but I think I can say with some confidence that many techniques and software architectures exist that enable the suspension of program activity, or at least its reduction to a very low bare minimum, when the program is not actually carrying out its design function, which is in this case to draw pictures of website data on a screen.
There is a very serious problem here, one which means that I cannot run Firefox all the time, but have to kill it when I am not actively browsing, otherwise other applications cannot run to their full capacity. This is a great pity, because I have committed a lot of effort to making Firefox my primary web tool. It manages all my many bookmarks, contains my secure password manager (LastPass), manages my web security (via NoScript, AdBlock, and FlashBlock), just for a start.
Before any well-meaning moderators or other commenters start down the usual trail of "have you done this, tried that, disabled the other", I should point out that I have followed all the advice I can find, with no positive outcome. This computer is running a fresh installation of Windows, and a fresh installation of Firefox. At the moment I am running a new test Firefox profile.
The latest version of Adobe Flash, 14.0.0.179, is installed but disabled. When it is enabled and in use, Firefox's CPU usage seems high over longer periods, but overall there is little difference. It doesn't look as though the problem can be laid at Flash's door. A few other add-ins are installed, mainly those mentioned above, and Firefox is skinned with LavaFox v2-Green, but I have previously started from a clean installation, which has made little difference after an initial period during which things seemed to be better. Turning off or disabling various add-ons has made no discernible difference.
Just now I turned Flash on, and after a long period with Firefox minimised, Resource Monitor reported Firefox at 8% average CPU and FlashPlayerPlugin at 0.32%. While running a small video, RM reports FlashPlayerPlugin at about 45% and Firefox at 8%. After the video, Flash went back down to around 0.4%, and after a bit more browsing Firefox went to around 17% minimised. There seems little rhyme or reason here, except that Flash does not seem to be the culprit, although Firefox does seem to consume less when fewer tabs are actually active, as you might expect. I just refreshed more than a dozen tabs, and now Firefox is at 30%, but still not back up to the higher figures. Weird.
The CPU usage does vary a lot around the average, but 30% is still a lot for a program that shouldn't be doing anything above the minimum status maintenance, and still puts it at the top of my Top Process Monitor list. (Right now it's gone back up to 45%, without my using it in any way).
I have Telemetry turned on, so presumably Mozilla is recording some of the relevant data.
This is a very serious fault, which is more or less reproducible and which a lot of people seem to be experiencing. Probably more people have it than realise, because most users will not know anything other than that their computer slows down for some non-obvious reason; they may just think it's something to do with the computer itself, not knowing how to use the Resource Monitor and interpret the results.
Oddly, the problem does not seem to occur when running Firefox under Linux Mint 17, where the response is snappy and the CPU usage ostensibly low; I am going to look at this in more detail shortly.
I am not posting here for advice, but for information and as a form of bug report which hopefully other users will see. It will hopefully spare them a lot of effort and time in trying a lot of recommended "solutions" which will not work. The problem is inherent in the software, and can be solved only by Mozilla.
I am willing to supply any diagnostic data requested; as I said above, I have also turned on "Telemetry". However, I will not be trying out any more reinstallation/new-profile/add-on disable-enable-delete cycles unless I am asked to for very specific reasons. Please do not suggest courses of action which have already been mentioned elsewhere on this forum. I have tried them all.
The situation is very disappointing, but I have confidence that the Firefox developers will pin down the fault eventually and engineer a satisfactory solution that makes it viable to leave Firefox open all the time. Even with that restriction, it's still far better than the alternatives.

I share jmward's frustration. This is not a bug report so much as a request for a badly needed feature, ie the ability to have Firefox be able to tell us which tabs on which windows are eating time so we can target them. There are some very poorly written web pages out there which just plain loop while making no updates or inconsequential updates on the page.
This is not a OS problem; jmward runs Windows and I run Linux but we have the same issue. It is not a question of Firefox plugins or extensions, or even viruses; I have a new, clean Linux install but have the same problem on both my regular Firefox AND on a FRESH install of the latest Firefox (35.0.1) which has *NO* non-default plugins or extensions.
Here is an example of a web page which will eat 100% of one CPU's time:
http://patch.com/massachusetts/arlington/arlington-woman-allegedly-attacks-neighbor-snow-blower-0
I will attach 3 images to back up my claim. All of the images show my dark blue system monitor (gkrellm) superimposed on the web page. The top graph shows CPU time. I have 4 CPUs in my machine, so 25% means the web page is eating 100% of one CPU equivalent.
The first image shows the load of the offending page with elevated CPU usage along with the download net activity on eth0, but the CPU activity does not stop when the download activity is over.
The second images show the steady state 100% CPU equivalent of this page just sitting there apparently doing nothing. It IS, however, doing at least two different things. I know from my regular Firefox where I have "Remove It Permanently" installed that if I remove the the little weather indicator in the upper right of the offending page that CPU utilization drops to about 40% of one CPU equivalent. If I use RIP to remove everything else right down to a bare screen that 40% utilization stays until I delete the tab.
The third image shows the CPU utilization drop to zero when I delete the tab holding the offending page.
Now I will add a note here: If the offending page is NOT the top tab in a window then it stops eating time. The offender will also stop eating time if I minimize the window. However if I have another window up but leave the offender up on top in its window it continues to eat time even tho I am looking at another window. The offender will continue to eat time even if its window is completely covered by another window, and it will also eat time if I switch to another desktop.
I will often have half a dozen windows open, and there are many pages out there which will suck endless CPU time. Unless I want to open up a new tab on each window before I leave it there is likely to be some tab on top eating time uselessly. Get a couple of those going and Firefox becomes sluggish and can even stop responding for many seconds.
I guess I not only want to have Firefox tell us which tabs are eating time, but I would also like it if Firefox would stop giving CPU time to any tab which is not visible because it is covered by some other window and/or it is on a desktop which is currently not showing. If you can stop a tab's CPU usage by reason of tab-not-showing then you should also be able to stop its CPU usage when the window is covered or on the not-top desktop. Indeed is there any reason to not schedule absolute CPU utilization priority to the visible tab on the window with focus and give time to the other tabs only when the visible tab isn't using time?
My final thought on this is that I have had Firefox SO tied up sometimes that I swear their are web pages which are eating time even tho they are not the top tab. I regret that I do not have an example to show you. But Firefox grinds to a complete halt on a regular basis, and that is not acceptable. I am a programmer with long experience in multi-threaded programs so I *know* there is no reason you cannot do better. If there were another browser around which had the commitment to privacy which Firefox has I would probably switch out of shear annoyance. :-(

100% cpu usage with wm

hi everybody,
i wonder if anybody can help me with this rather odd issue.
i have been using my Zen Touch 20GB (enjoyable little gadget) for quite a while now, uploading mp3's and wma's without any problems (roughly 6GB).
over the last few weeks i had more and more issues with my system freezing and the task manager showing the process CTPdeSrv.exe taking up 00% of my CPU usage. the only possibility to continue working on my PC was to end the process. i found the hint in your knowledge base to perform a disk cleanup (SID 6228) but the problem persisted. i then deleted and reinstalled the Creative MediaSource Player that came with the Zen Touch. problem persisted. i upgraded to v3.30.2. problem persisted. after spending an afternoon deleting/installing different combinations of your software and narrowing down the possibilities i discovered that i only get this problem when i try to rip a CD with MediaSource to wma, chosing mp3's everything works fine. the same problem (00% CPU usage) occurs when i try to access the plugged in Zen with MediaSource, Winamp, Realplayer or even Windows Explorer. so it must be a player thing.
i have interchanged the used USB2.0-ports as well. i also tried all the suggested steps under point "I have connection problems with my Zen, what can I do?" @ nomadness.net.
i haven't reloaded the OS on my Zen cos i'm afraid when i delete it and attempt to copy the downloaded firmware v.0.03, my Zen will produce the same error and i loose my music plus can't use the player anymore.
i'd appreciate some help very much.
cheers.
WinXP SP2, Mobile AMD Athlon XP 2400+, 52MB RAM
Zen Touch with firmware v.0.03
Creative MediaSource v3.30.2
PS: somebody had a similar problem (user Samsuri posted 09-05-05), but the suggested solution (reinstalling the SW) didn't help at all

I had the same problem that you experienced. I also was unable to get any cd infor from Gracenote. I haven't had my Zen Touch very long (bought it on ebay) but I had added several songs from my library and all worked great. Then all of a sudden the other day I was getting 00% cpu useage and the cd info problem?!! I figured that seeing it was new to me anyway I'd update the firmware and go to the Explorer for PlaysForSure version. The upgrade was a breeze and my problem with the 00% cpu has disappeared so far and cd info works again. All is good, but... When I boot the machine I automatically go to the system 32 folder? No idea why and who knows if you'll get the same problem. I just close that after boot and everything seems to be working fine. I plan to look into the system 32 situation and that's actually why I joined this forum. If anyone has an answer for me on that I'd appreciate it.
Thanks

High CPU Usage with one client

I work as a desktop support engineer. I've got a call that has been back and forth between departments that I believe to be an SCCM problem but I'm not involved in the back end of that, just desktop onsite type stuff, hardware, rebuilds etc...
So I'm wondering if I can get some ammo to take to the SCCM team and hopefully get the problem resolved for the affected user.
What happens is, one particular user, every time he logs onto a machine, from that moment on (all he needs to do is log on once, then log straight off) almost every night at a random time the CPU will starts behaving erratic around the 25% mark and will
not stop until the machine is rebooted. After the reboot, all is well, until the next night. The RAM in this time will also behave odd. It goes up and down every 10-20 seconds. It starts at a particular figure, goes up a little to another figure, then back
down to the previous, then back up again and so on. Obviously I'd expect the machine to mostly be sat idle, cpu usage around 0-5%, ram not moving, and this is the case with all other machines across our estate. The user likes to leave his machine on and logged
in hence why he sees it often.
Even if the machine is rebuilt, it will continue doing it if he has logged on previously, if we change the hostname in this rebuild, it doesn't, hence why I'm certain this is something to do with SCCM. Also, a level 3 guy has had a lot to do with this case
too, he says that when the cpu is going crazy, its always to do with svchost.exe and the WMI, again, pointing to SCCM I think.
Now, we don't have roaming profiles, software and patches are all installed by SCCM, I think we use 2012, but it may be 2007, I can find out if it will help.
From what I've read, it looks like it could be corrupt superseeded update packages. But the question is then, if so, why does it only affect one user? Can it affect his personal id SCCM account or something? sorry, I don't know too much about how SCCM works,
I have a rough idea, but its just that...Rough!
Any help would be most appreciated as this call has been outstanding for months and it keeps on popping back into my queue saying things like, try rebuilding the client, well...yeah...read the history geniuses, we've done that many times, ruled hardware
100% out and still it ends up back with us. Thankfully the bloke is really understanding and seems quite a problem solver himself, he's really intrigued to know whats happening now and has learnt to work around it.
Many Thanks for any and all help given, I can provide logs and any diagnostic info that will help.

Even if the machine is rebuilt, it will continue doing it if he has logged on previously, if we change the hostname in this rebuild, it doesn't, hence why I'm certain this is something to do with SCCM. Also, a level 3 guy has had a lot to do with this case
too, he says that when the cpu is going crazy, its always to do with svchost.exe and the WMI, again, pointing to SCCM I think.
Now, we don't have roaming profiles, software and patches are all installed by SCCM, I think we use 2012, but it may be 2007, I can find out if it will help.
From what I've read, it looks like it could be corrupt superseeded update packages. But the question is then, if so, why does it only affect one user? Can it affect his personal id SCCM account or something? sorry, I don't know too much about how SCCM works,
I have a rough idea, but its just that...Rough!
Any help would be most appreciated as this call has been outstanding for months and it keeps on popping back into my queue saying things like, try rebuilding the client, well...yeah...read the history geniuses, we've done that many times, ruled hardware
100% out and still it ends up back with us. Thankfully the bloke is really understanding and seems quite a problem solver himself, he's really intrigued to know whats happening now and has learnt to work around it.
Many Thanks for any and all help given, I can provide logs and any diagnostic info that will help.
I'm not seeing how this is a CM12 problem at all. Yes it might be a WMI problem but that doesn't mean that it has anything to do with CM12.
Software Update are not deployed to a user they are deploied to a PC.
Start with the basic.
Have you check WMI health?
What OS are you talking about?
Have you applied all the WMI Software Updates to the PC?
Are you sure that he doesn't have roaming profile?
What happens when he logon to your healthy PC? Does the problem start? If so what then this is clearly NOT a CM12 problem but instead, a profile or application target to him that is the problem.
What GPO are target to him?
Garth Jones | My blogs: Enhansoft and
Old Blog site | Twitter:
@GarthMJ

Hyperthreading on VM Machine - cpu usage differs when enabled or not?

Similar Messages

Maybe you are looking for