Only in these cases is the effort associated with tracking down the source of the CPU spike(s) likely to be worthwhile.įirst, obtain an overview of the system and insight into the temporal behavior of this symptom.įirst, determine whether the system on which this application is running is a real (physical) machine, or a virtual machine (VM). High CPU consumption is also a problem if it correlates with a degradation in end-user response times. High CPU consumption can be perceived as a problem if system administrators worry about capacity with the projected growth in team size or end-user population. However, 100 percent CPU consumption can be, and almost always is, a problem because it means there are insufficient resources at peak times to execute the workload presented to the system. High CPU consumption is not, in itself, a problem. Variability in CPU consumption (depending on system workload) is, of course, not unusual. Is the CPU spike actually causing a problem? This page focuses only on CPU spikes on the application server host.
Regardless of the settings that I use in the bios, with or without the smart fan control option, it does the same thins, the only difference is that without it, overall temps are higher and the system is also much louder.This section outlines the suggested approach for analyzing and investigating sporadic high CPU loads on Collaborative Lifecycle Management (CLM) servers. This image was taken during gameplay and streaming at the same time.Īs it can be seen, all of the system fans spiked at one point, for a very short period of time(1-2 seconds) and then back to normal. The CPU cooler that I'm using is the Be Quiet Pure Rock with it's stock 1500rpm fan, the rest of the system fans are Noctuas NF-F12 PPC(2000rpm) for the front intake and a couple of Noctua NF-S12 for the the rest of the chesis fans. Needless to say, the CPU was getting hot as hell with those settings, and the system fans were super loud as well. All of the system fans were defaulting at full speed, and the CPU fan had a 300rpm starting point up to around 900rpm. I have also tried turning the smart fan control completely off from the bios, the results were even worse. The fans will never ramp up the way they do when I play and stream.Īlthough I have set the "smart fan control" profile for the system fans to be linear at around 800rpm and for the CPU to be a smooth line from 800 to 1500rpm depending on the temperature. It is strange because I can run a 1 hour Aida64 stress test, and the CPU will never go above 75-ish C, and same for the other components as well.
Although my temps are withing normal range, all of the system fans are just ramping up when the system is under moderate load, for example gaming and streaming.Įven when, the CPU never goes to a 100% (it barely touches 50)
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