System Performance window and CPU usage

The System Performance window shows two bars - what do these mean? My guess would be for dual cpu, on my quad only two show up but I assume that's because Apple needs to update to show all four?
Related question - when doing a torture test on my quad, Logic seems to show almost full CPU usage and choke while Activity Monitor only has logic using about 130% of available cpu (out of 400%). Processor load seems to be split equally between all four (none of which seem to be averaging over 50%). On a dual, how close does Logic get to 200%? Is there anything I can do to get Logic to use more of the available CPU power?
I'm running an assortment of softsynths, most with Space Designer (do longer verbs in SD use more CPU?).
Along these same lines, are there any standard Logic benchmarks?

They indicate multiple processors if audio is subdivided. It is most likely Logic hasn't got a CPU meter update-don't the quads simply operate as pairs per core-fuctionally similar to a Dual but when it comes to the processor the duties are split, as opposed to 4 procs it works more like 2 coupled...
Longer IRs require more calculations, they add up really fast, esp. at higher sampling rates-because the IRs convert to the host (session) rate, as opposed to the rate the IR is.

Similar Messages

Updating songs on IPod in Windows and CPU usage

Whever i update songs on my ipod, iTunes will use lots of CPU. I do not have a problem with this as i have a dual core system that can handle the load, the problem is that when i switch away to another application iTunes will suddenly decide to idle and reduces it's cpu usage and the speed at which it encodes/transfers.
I'm guessing this is to increase respsonsivness so that you can use your computer but it makes the transfer horribly slow.
So, my question is how do i make iTunes use more CPU when it's not the foreground window? Is there a way?
Dual Core 2.66Mhz Pentium D Windows XP Pro

When you bring another application to the front of iTunes while it is updating, it will reduce the cpu usage of itself. Load up task manager and see for yourself. Normally when iTunes is the foreground window it will use 70%-80% of the CPU for encoding. Now this isn't a problem, i have a dual core CPU so iTunes can use all the cpu it wants and it won't lag the rest of the computer ( even if i do play games)
My problem occurs when i want to switch away from iTunes and browse the web while waiting for it to update, when i do this it takes forever to update the iPod because iTunes has gone into low priority mode and only uses about 5% CPU, I want to know if there is a way to "PREVENT" iTunes into going into this "IDLE" mode and instead use as much CPU as it wants on one core, because i don't want to have to set it up and walk away for an hour.
I suppose this is really a developer issue, in that they have not used proper multi-threading to take advantage of dual core CPU's. Still an option to disable the low priority mode would be nice.

Activity monitor says I have 1 -3% of System Memory free, yet CPU usage shows less than 10% total of all processes

Activity monitor says I have 1 -3% of System Memory free, yet CPU usage shows less than 10% total of all processes

I think you should review what you wrote. There is no question, hence, my reply. I can't tell by the AM listing what applications are using memory. You need to click on the Real Mem column once or twice to display in descending order.
Aside from what you see in AM, what exactly is your problem or perceived problem. You are very low on Free Mem at the moment the screen shot was taken. Those displays are not depicting your computer's instantaneous memory usage.
About OS X Memory Management and Usage
Using Activity Monitor to read System Memory & determine how much RAM is used
Memory Management in Mac OS X
Performance Guidelines- Memory Management in Mac OS X
A detailed look at memory usage in OS X
Memory Usage Performance Guidelines- About the Virtual Memory System
Understanding top output in the Terminal
The amount of available RAM for applications is the sum of Free RAM and Inactive RAM. This will change as applications are opened and closed or change from active to inactive status. The Swap figure represents an estimate of the total amount of swap space required for VM if used, but does not necessarily indicate the actual size of the existing swap file. If you are really in need of more RAM that would be indicated by how frequently the system uses VM. If you open the Terminal and run the top command at the prompt you will find information reported on Pageins () and Pageouts (). Pageouts () is the important figure. If the value in the parentheses is 0 (zero) then OS X is not making instantaneous use of VM which means you have adequate physical RAM for the system with the applications you have loaded. If the figure in parentheses is running positive and your hard drive is constantly being used (thrashing) then you need more physical RAM.
Adding RAM only makes it possible to run more programs concurrently. It doesn't speed up the computer nor make games run faster. What it can do is prevent the system from having to use disk-based VM when it runs out of RAM because you are trying to run too many applications concurrently or using applications that are extremely RAM dependent. It will improve the performance of applications that run mostly in RAM or when loading programs.

Problem with memory usage and CPU usage

Hello,
i have a problem with the memory usage and cpu usage in my project!
My application must run for more than 24 hrs. The problem is that the longer it runs the bigger is the memory and cpu usage!
It starts with ~15% CPU usage and ~70 MBytes memory usage. After ~ 24hrs the CPU usage is ~60% and the memory usage is ~170 MBytes!
After 3 days the CPU usage is almost about 70% and the memory usage is about 360 MBytes!
What can I do to reduce this huge recource usage?
Thank you!

Hi Pahe,
   I think the issue is memory usage, since CPU usage can increase due to greater memory requirements.
   Anyway, it's difficult to debug without seeing your code, can you post it (possibly for LV 7.1 compatibility)? Or just post a JPEG of the piece of code that can give problems...
   I guess you're appending data to an array instead of replace data elements, but I can't be sure...
   Have a nice day!
graziano

I think I am see a bug, Under FF 3.6 Mem Usage is 80 mb and CPU is 2%. Under FF 4.0 Mem Usage is 210+mb and CPU usage is 35%. Also in FB on some Zynga games the plugin-container Mem Usage is running at over 400mb in FF 4.0, is this a known problem?

I think I am see a bug, Under FF 3.6 Mem Usage is 80 mb and CPU is 2%. Under FF 4.0 Mem Usage is 210+mb and CPU usage is 35%. Also on FB on some Zynga games the plugin-container.exe Mem Usage is running at over 400mb in FF 4.0, is this a known problem?

I think I am see a bug, Under FF 3.6 Mem Usage is 80 mb and CPU is 2%. Under FF 4.0 Mem Usage is 210+mb and CPU usage is 35%. Also on FB on some Zynga games the plugin-container.exe Mem Usage is running at over 400mb in FF 4.0, is this a known problem?

How to check the memory and CPU usage on NPU

Hi expert ,
Could you tell me how to check the memory and cpu usage on NPU?
I think ASR1000 has this command (show platform hardware qfp active...) , but I coudn't find the same command on ASR9001.
I checked " show controllers np counters all" command, but I did not find it.
Platform: ASR9001
version: 4.3.2
NP: Tyhoon
Thanks,

Hi Kanako,
understand your question, but something like that doesnt exist for the trident/typhoon NPU's for the asr9k.
in fact cpu usage is not really applicable for parallel/serialized hardware forwarders, but mainly the KPI is here
the PPS it handles.
The max pps it can handle is dependent on feature set.
What you could do is measure the rates on the PARSE_FABRIC_RECEIVE count (packets received from fabric, so egress direction), PARSE_ENET_RECEIVE count (packets received from the interface to the fabric, so ingress) and the LOOPBACK count, that is packets that are recirculated for extra processing. The sum of these 3 gives an idea of the PPS rate the NPU is working on.
Memory consumption is something tricky also, there are many memories attached to the NPU, notably:
TCAM used for vlan matching, ACL and QOS matching
Search memory for L2 and L3 (shared on Trident, separated on Typhoon)
Frame memory for packet bufferin in QOS
Stats memory, for all kinds of counters of QOS maps, interface stats etc
their usage is rather dynamic also.
The few things you want to verify on these are:
- ACL usage (in terms of Tcam entries)
- MAC table size (2M max on typhoon)
- FIB size (4M max on typhoon)
frame memory is dependent on the buffering, which is a sum of all the packets instant queue length and size of all pmaps attached to interfaces served by the same NPU. there is no good overview as to how much you have available of that, but it has a rather significant size 1G or 2G depending on the TR or SE cards (typhoon specific).
regards
xander
Xander Thuijs CCIE #6775
Principal Engineer
ASR9000, CRS, NCS6000 & IOS-XR

Last 3 times I downloaded iTunes my Windows XP system locked up. CPU usage stays pegged at 100 percent. I can only seem to fix it by restoring to an earlier set point while in safe mode and then uninstalling I tunes. Any thoughts.

It seems like I can't load ITunes onto this machine anymore, although I did successfully use earlier versions

Just in case, let's check to see if we've got a LSP issue here:
Apple software on Windows: May see performance issues and blank iTunes Store

Timed loop and CPU usage

Platform is WIN_XP Pro and machine is a P4 at 2.5Ghz with 512 Mb ram.
LV7.1 + PCI 6229
I am using 50ms Timed loop for running a state machine inside it
and also a whole lot of other things like reading / writing
DAQMx functions; file I/O functions and such. As the
project involves a main and sub-panlel set up local variables
could not be elimnated fully and there should be something like 150 of
them. But not all are accessed always - maybe about 15 of them at any
given time depending on the SM staus.
Problem :
Once started the "Finished late" indication is off and
the actual timing alternates between 49 to 52 ms. The CPU
usage is around 25%.
But as time goes by, the system gets unstable : After 15 minutes
or so, the Finished Late indication is always ON and the CPU usage is
gradually tending towards or exceeds 100%.
Obviously the machine control timing now gets affected and things slow
down badly. Closing the application ands restarting repeats the above
cycle.
I am at a loss to understand what is happening ? WIll
breaking down the single Timed Loop to multiple ones help ? WIll
that be an efficient way of parallel threading ?
I can post the code but its quite large and will do it as a last resort.
thanks
Raghunathan
Raghunathan
LV2012 to Automate Hydraulic Test rigs.

Hello,
It sounds like an interesting problem. It would be worth some experimentation to figure out what's going wrong - attempting to decouple major "pieces" of the code would be helpful. For example, you could try breaking your code into multiple loops if that makes sense in your architecture, but perhaps you could even eliminate all but one of the loops to begin with, and see if you can correlate the problem to the code in just one of your loops.
Another concern is that you mention using many local variables. Variable read operations cause new buffer allocations, so if you're passing arrays around that way, you could be hitting a problem of forcing your machine to perform many allocations and deallocations of memory. As arrays grow, this can be a bigger and bigger problem. You can use other techniques for passing data around your block diagram, such as dataflow if possible (just simple wires), or queues where dataflow can't dicatate program flow completely.
Hopefully looking into your code with the above considerations will lead you in the right direction. In your case, removing code so that you can identify which elements are causing the problem should help significantly.
Best Regards,
JLS
Best,
JLS
Sixclear

NI DAQmx 8.3 and CPU usage

I have similar problem as described on page http://forums.ni.com/ni/board/message?board.id=250&message.id=23831
but have solution and some reflections.
first of all, about system
system use 2x PCI-6143 and take data from 16 channels with maximum rate (250 kS/s)
program
was created about year ago (with LV 7.1.1, DAQmx 7.4) and on PC with
PIV (3.2 GHz) processor and 1 Gb of RAM work properly (CPU usage less
30%).
Now I've recompile program with LV8.2 and update drivers to DAQmx 8.3. now program can't work properly because CPU usage 100%
I create test VI for research this problem.
First version (daq_test1) - simple code - configure daqtask and get data.
I found:
if
sample rate less or equal 90 kS/s (on PCI-6143) CPU usage less 5%, but
when rate more 95 kS/s CPU usage jump to 60% (for one or more channels
on one or two devises).
Then I create simulated devise PCI-6143 in MAX and the same vi (daq_test1) require not more than 5-10% of CPU.
also
I have examine devise 16E-4 and find the same problem: if samle rate
more than "boundary" rate, CPU usage is too much (50-70%).
Then I add configure parameters (daq_test2) - add manualy DMA "on". There are no effects (CPU usage jump to 60% on "fast" rates)
Then I "play" with WaitMode (daq_test3). There are no effects (even if WaitMode=Sleep and SleepTime>1s CPU usage about 60%)
Finally
I create vi (daq_test4), where "manually" check
AvailableSamplesPerChannel and call DAQmx Read only when bufer has more
samples, that I need.
So I'd wound solution, but think driver
MUST check available samples carefully (also, why DAQmx 7.4 can fast
scan, but DAQmx 8.3 can't do it at least the same way as previous version).
Attachments:
daq_test.zip ‏78 KB

Artem,
Thank you for contacting National Instruments support. This is expected behavior. When the wait mode is set to Sleep, DAQmx will only sleep if and only if there is no data available to process. So, for example, at 200 kS/s, data is filling up the buffer fairly quickly and should always be available to read, which means that the process will not sleep at all. When data is always available, the CPU is going to handle it as quickly as possible and thus the CPU will appear to be running at near 100%.
Specifying a wait mode of Sleep is really only beneficial when the acquisition is running slowly enough that a lot of time is spent in DAQmx Read waiting for the data to arrive. In the past, the CPu was maxed out even at extremely slow sampling rates. Sleep mode alleviates this problem by putting the process to sleep when no data is ready for processing; however, if data is available, it will be handled immediately and no sleeping will occur. If data is constantly available for processing, the CPU is expected to deal with it right away and the usage will appear to be high.
Regards,
Kenn North
Senior Product Manager - Search, Product Data
http://ni.com/search

When I open Itunes it immediately is unresponsive and CPU usage shoots up to 100%.

I've tried uninstalling and re installing, but all parts aren't installing-mainly Quick Time and Apple Mobile Device. I can manually install Quick Times, but I'm still getting no where. I have tried a few of the suggestions I've seen in the support community but nothing has worked so far...any suggestions? I have XP

Close your iTunes,
Go to command Prompt -
(Win 7/Vista) - START/ALL PROGRAMS/ACCESSORIES, right mouse click "Command Prompt", choose "Run as Administrator".
(Win XP SP2 n above) - START/ALL PROGRAMS/ACCESSORIES/Command Prompt
In the "Command Prompt" screen, type in
netsh winsock reset
Hit "ENTER" key
Restart your computer.
If you do get a prompt after restart windows to remap LSP, just click NO.
Now launch your iTunes and see if it is working now.
If you are still having these type of problems after trying the winsock reset, refer to this article to identify which software in your system is inserting LSP:
iTunes 10.5 for Windows: May see performance issues and blank iTunes Store
http://support.apple.com/kb/TS4123?viewlocale=en_US

When I am in e-mail. I get the spinning color wheel. Then, when I check the activity montior, it notes high cpu usage (99%) for "Safari web content.". then I quit this process and cpu usage drops way done. but I have to log in again to my e-mail. what can

When I am in e-mail, I sometimes get the spinning color wheel, which lock up everything. when it doesn't go away, I see on the activity monitor, that CPU usage is very high (99%), for a process calles " Safari web content'. When I click on the proccess and quite, the CPUusage goes way down. Problem is that I have to then log back in to e-mail. What can I do to eliminate this proble. thanks

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.

Problem with paintComponent, and CPU usage

Hi,
I had the weirdest problem when one of my JDialogs would open. Inside the JDialog, I have a JPanel, with this paintComponent method:
public void paintComponent(Graphics g) {
super.paintComponent(g);
Color old = g.getColor();
g.setColor(Color.BLACK);
g.drawString("TEXT", 150, 15);
g.setColor(old);
parent.repaint();
now when this method is called, the CPU usage would be at about 99%. If i took out the line:
parent.repaint();
the CPU usage would drop to normal. parent is just a reference to the Jdialog that this panel lies in.
Anyone have any ideas on why this occurs?
Thanks!

1) I never got a stack overflow, and i have had this in my code for quite sometime...If you called paint() or paintComponent(), I'm betting that you would see a stack overflow. The way I understand it, since you are calling repaint(), all you are doing is notifying the repaint manager that the component needs to be repainted at the next available time, not calling a paint method directly. good article on how painting is done : http://java.sun.com/products/jfc/tsc/articles/painting/index.html#mgr
2) If this is the case, and the two keep asking eachother to paint over and over, .....
see above answer

How to find discoverer log files and CPU usage

Hi,
i have a report running very slow in prod. but runs fast in dev and qa.
**Where/how can i find the Log files generated after the report runs?**
**Also i wanted to see how i can find the CPU Usage**
i searched online for CPU usage... and found this --> ""For the CPU usage of these servlets, please navigate to the Discoverer application page from the OC4J_BI_Forms home page in the EM standalone console.""
can anyone tell me how to navigate to OC4J_BI_Forms home page in the EM standalone console?
Thanks!
gayatri

Hi gayathri,
This link would help i suppose
http://docs.huihoo.com/oracle/docs/B14099_19/bi.1012/b13918/maint.htm#i1025807
and http://docs.huihoo.com/oracle/docs/B14099_19/bi.1012/b13918/tshoot.htm#CHDHFJDE
Be careful,if not done without prior knowledge it would mess up.So mostly this job should be done by DBA of your company.They can log in as sysadministrator to get to "Enterprise Manager" and do as per the link
Best Wishes,
Kranthi.

10.4.9 update and CPU usage up %20, even during idle

I experienced a general slowdown except with file transfers. I am about to give up and rollback to 10.4.8.

I rolled back to 10.4.8 (because all my problems appeared in 10.4.9) and everything speeded up and CPU dropped to under %9 while I type this. I no longer have to type a few words and wait for them to appear. I installed all my third party stuff except Norton antivirus and sidetrack. Any new update is 10.5 so ...
400Mhz Cpu can easily be taxed.
I never had a performance hit with apple updates since the beginning of OX. In fact when I moved from Puma to Jaguar, I experienced the same speedup as a processor upgrade earlier, 300mhz to 500mhz!

FCE 4 vs. FCE 3.5 and CPU usage?

I just upgraded to FCE 4, and I noticed a difference in CPU usage right away in the Activity Monitor. FCE 3.5 would often go over 100%, but when I render in FCE 4, the levels are consistently lower.
Does this mean that FCE 4 isn't rendering with as much CPU as FCE 3.5? Is there a setting that's been changed in the preferences? I couldn't find anything.
Thanks in advance,
Doug Dye

So, the differences between 3.5 and 4 are so minor, that the upgrade isn't worth it - taking into account the usage of "old" camcorders, occasional use etc.) ? Can anyone highlight the most prominent enhancements which are really important ones for a "general" audience?
Thanks for any advice!
Stef
+Lean Back & Relax - Enjoy some Nature Photography+
+http://photoblog.la-famille-schwarzer.de+

System Performance window and CPU usage

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