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Questions tagged [cpu-usage]

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285 questions
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2 votes
0 answers
39 views

I'm investigating a difference in behavior of using "top -H -p < pid >" and "mpstat -P ALL 2". My company's app is a multi-threaded process in which we bind each thread to ...
Jenner's user avatar
  • 121
2 votes
1 answer
61 views

I have this reoccurring problem in a variety of videocall platforms. When I'm in a call the CPU usage repeatedly goes up to 100% for around 1 or 2 minutes. During these episodes, the whole system is ...
e_oscuro's user avatar
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1 vote
1 answer
255 views

I have a computation intensive process that I need to run multiple times on a multi-core processor but "top" isn't showing utilization or load in a useful way. For example, imagine my task ...
tkw954's user avatar
  • 113
0 votes
0 answers
58 views

When I run taskset -p <pid> of a process I am getting something like this back: # taskset -p 1078 pid 1078's current affinity mask: 3f And it keeps changing what it reports, sometimes it's 5f, ...
Zitrax's user avatar
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0 answers
53 views

I have a linux kernel version 6.8.0-57-generic (Ubuntu Jammy). I want try disabling and enabling the cores in the CPU through the linux kernel module (from kernel space) What is the right way to do ...
ss22's user avatar
  • 13
1 vote
0 answers
64 views

I'm on an ARM board running Linux. The hardware is a vehicle domain control board which has 6 core ARM Cortex-A78AE and some machine learning cores. I don't want to reboot it because It might be a ...
Xingx1's user avatar
  • 11
1 vote
1 answer
312 views

Environment Ubuntu22.04 sysstat version 12.2.0 Number of logical CPUs 16 man pidstat shows the following, but I would like to know more specifically about the denominator and numerator of %wait. ...
LAPK's user avatar
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0 votes
0 answers
40 views

In Linux kernel cgroup v2’s CFS scheduler, how is cpu.stat throttled_usec accounted when a cgroup with multiple threads gets throttled during a single quota period? Specifically, is throttled_usec ...
ALZ's user avatar
  • 921
0 votes
2 answers
345 views

I keep having lsof -w -l +d /var/lib/php5 eating up my CPU I want to know who is triggering it and what does it have with php5 ...
Aleksandar Pavić's user avatar
  • 109
1 vote
1 answer
236 views

I have a desktop computer (Intel i4770) running Oracle Linux 7.9 with kernel 4.1.12-61. I usually keep it off and only turn it on on the rare occasions when I need to test something. A month or so ...
ktbos's user avatar
  • 111
0 votes
1 answer
171 views

HW Specs: CPU: 64 Cores, 128 Threads, AMD Ryzen Threadripper Pro 5995WX RAM: 512 GB, Manufacturer unknown, will try to provide if needed Linux Specs: OS: Ubuntu 22.04.4 LTS Linux Kernel: 5.15.0-...
m4fr1699's user avatar
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1 vote
1 answer
466 views

I have a KVM guest and inside it I am running vnc server. I have a ssh tunnel that I connect to it using tigervnc viewer. Everything works good for it except one issue. Using Chrome (using X server), ...
dman's user avatar
  • 569
-1 votes
1 answer
43 views

host=$(hostname) email="[email protected]" # Change to your desired email subject="Attention!!! Health check Failed on $host" echo $(date) # CPU use threshold cpu_threshold=0 # ...
Navdeep Singh's user avatar
  • 37
1 vote
0 answers
659 views

After KDE plasma 6 update, my CPU usage increased significantly while on lockscreen. This caused the processor to reach high temperatures and lose electricity unnecessarily. Main processes that caused ...
Sikora's user avatar
  • 19
24 votes
2 answers
6k views

We have been experiencing high load issues on our Linux server recently. Upon checking with the top command, we noticed an unknown process with a garbled command name (as shown in following images; ...
yamato's user avatar
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