Kernel Threads are causing application slow down
March 29, 2016 02:51AM

We are running java application on CentOS6 VM. This VM has 60 vCPUs. When I see htop all CPUs are displaying in RED color with 90%-100% usage.

I came to know the RED color in htop is indication for Kernel Threads. When we reboot the VM 60vCPUs are processing fine and displaying in GREEN color at the time our application performance is good. By end of the day, all CPUs are turning into RED and getting our application process very slow.
I want to know why the Kernel Threads stopping our application processes and how to troubleshoot it ?

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