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Windows Forum / Windows Vista / Performance and Maintainance / May 2008CPU Utilization of 35% + All of the time
I have an AMD Athlon 64 X2 Dual Core Processor 4400+ 2.2 GHz. One of the cores show a 3% use and the other shows a 35%+ use all of the time. I've turned off off-line files. It doesn't appear to show me what processors are using this CPU. It looks like in the task manager that I am only using the 3%. Thoughts? Try to click on 'show processes from all users' below in the processes tab. Which process is the bad one? >I have an AMD Athlon 64 X2 Dual Core Processor 4400+ 2.2 GHz. One of the > cores show a 3% use and the other shows a 35%+ use all of the time. I've [quoted text clipped - 4 lines] > > Thoughts? I tried that. Basically, it shows the System Idle Process always being between 95%-97%. There are 2 CPU graphs. 1 graph shows the 1-5% CPU utilization. The other graph shows 70% utilization. I don't know what the second core is doing but it appears busy on the CPU Usage History graph. The total CPU Usage looks to be 30-35% busy all of the time. The performance of my system would say that it is being utilized. When I use the Resource Monitor, it doesn't help answer the question either. Other than seeing some disk activity for the Resource monitor, I don't see much going on other than the constant CPU utilization. It doesn't help me figure out why the second core is being utilized like this.  SignatureBob > Try to click on 'show processes from all users' below in the processes tab. > Which process is the bad one? [quoted text clipped - 7 lines] > > > > Thoughts? Any ideas on how to find out what is utilizing my second CPU at 70%? SignatureBob > I tried that. Basically, it shows the System Idle Process always being > between 95%-97%. There are 2 CPU graphs. 1 graph shows the 1-5% CPU [quoted text clipped - 19 lines] > > > > > > Thoughts? Can anyone with a dual core let me know if the CPU Usage History graphs seem to be correct for both cores? SignatureBob > Any ideas on how to find out what is utilizing my second CPU at 70%? > [quoted text clipped - 21 lines] > > > > > > > > Thoughts? I set up a test user and disconnected all devices. Basically just a stand alone PC. After the indexer completed, there was nothing running that I could see other than some basic processes. No network activity (obviously) and no writing to disk other than the Resource Monitor. Still it appears that 75% of one of the cores is being utilized by a process that isn't listed. Thoughts? SignatureBob > Can anyone with a dual core let me know if the CPU Usage History graphs seem > to be correct for both cores? [quoted text clipped - 24 lines] > > > > > > > > > > Thoughts? Tried showing processes from all users? I tried showing processes from all users. It doesn't appear to show the second core utilization it only looks like it is showing the first core. Maybe this is a dual core issue? SignatureBob > Tried showing processes from all users? The 100% is across both core so it will look less than the actual for that core. After this I say use Performance monitor, Form the process group add % User Time <All Instances> you can the go through 1-by-1 looking for thing with high utilization. >I tried showing processes from all users. It doesn't appear to show the > second core utilization it only looks like it is showing the first core. > Maybe this is a dual core issue? > >> Tried showing processes from all users? Process (% User Time) is 3% or less. Processor (% Processor Time) is 30-35% (Instance = _Total). I'm not familiar with the Performance Monitor. What do I look at next? It doesn't look like any of the Processes consume much of the CPU. It looks like the Total Processor time is high however. SignatureBob > The 100% is across both core so it will look less than the actual for that > core. [quoted text clipped - 9 lines] > > > >> Tried showing processes from all users? It looks like % Interrupt Time on core 1 is 70%. On the other core it is less than 3%. I guess this means that there is some device(s) like a mouse, disk drivers, NIC, etc. causing this issue. How can I find this? SignatureBob > Process (% User Time) is 3% or less. > [quoted text clipped - 17 lines] > > > > > >> Tried showing processes from all users? I am having the same problem here.. Vista ultimate x64, AMD X2 3800+ processor. Everything is running sluggish, and when I look in task manager, the graph for core #1 shows about 2-5% utilization, and core #2 is 95%-100%. Task manager always shows 46%-56% utilization overall, which would correlate with the graphs. System idle process shows 95%, and nothing else seems to ever take up more than 2-3% if I watch it for a bit. Resource monitor shows two processes taking up user time, but they are averaging about 3% each. Process explorer from microsoft/sysinternals also agrees with this, nothing shows using any cpu time at all. It even does this in safe mode. I tried disabling firewire 1394 in bios (and I was using an external fw drive) but that did not help. I have an ATI radeon 3850 manufactured by Diamond, and a netgear gigabit network adapter. No other add-on cards in this HP system. Anyone have any further ideas? I'm feeling like a reinstall with x32 vista may be in order, but I hate doing that. SignatureSpunkymanker The Interrupts/sec is sustained over 1000. I've compared this value to System: Systems Calls/sec. I don't think this is a hardware issue because it didn't exhibit this issue with WindowsXP; therefore, I think it must be a driver issue. Any thoughts on how to track this down? SignatureBob > I tried showing processes from all users. It doesn't appear to show the > second core utilization it only looks like it is showing the first core. > Maybe this is a dual core issue? > > > Tried showing processes from all users? I suppose you can disable the devices from device manager and see if that has an effect on the CPU load. The results explain why your weren't seeing anything in task manager. I suspect USB things? > The Interrupts/sec is sustained over 1000. I've compared this value to > System: Systems Calls/sec. I don't think this is a hardware issue because [quoted text clipped - 7 lines] >> >> > Tried showing processes from all users? I removed all USB devices and disabled the items that I thought were save to disable. These include a RAID controller, network card, etc. The remaining items would be like mouse, disk drive, keyboard, video card. If I disable any of these, I'm not sure how to enable them. Any other thoughts as to what I should try next? SignatureBob > I suppose you can disable the devices from device manager and see if that > has an effect on the CPU load. [quoted text clipped - 14 lines] > >> > >> > Tried showing processes from all users? Still not fixed? I dunno then, I think your stuffed, if a clean install doesn't fix your problem then I suppose you need wait for some updated drivers? Toby >I removed all USB devices and disabled the items that I thought were save >to [quoted text clipped - 27 lines] >> >> >> >> > Tried showing processes from all users? Anyone know how I can troubleshoot where the interrupts are coming from? SignatureBob > Still not fixed? > [quoted text clipped - 34 lines] > >> >> > >> >> > Tried showing processes from all users? I solved this issue by turning off the IEEE 1394 (firewire) port in my BIOS. The interrupts disappeared and the CPU utilization went down to almost nothing. SignatureBob > Anyone know how I can troubleshoot where the interrupts are coming from? > [quoted text clipped - 36 lines] > > >> >> > > >> >> > Tried showing processes from all users? I solved this issue by turning off the firewire (IEEE 1394) port in my BIOS. SignatureBob > Still not fixed? > [quoted text clipped - 34 lines] > >> >> > >> >> > Tried showing processes from all users? |
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