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btrcp2000

Random CPU spikes?

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Can someone take a look at these diags and tell me what freaks out and spikes half to 3/4 of my CPUs and brings unraid to a halt periodically? It eventually recovers, but I can't pinpoint what is happening at the time.  I suspect Plex, but not sure why.

 

TIA

unraid-diagnostics-20200113-2204.zip

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Only thing shown in there was your 3 VMs using cpu. When you see spike CPU, run htop or top at the linux prompt to see what processes are using cpu.

 


top - 22:04:15 up 14 days,  8:08,  0 users,  load average: 2.95, 3.79, 5.87
Tasks: 634 total,   2 running, 630 sleeping,   0 stopped,   2 zombie
%Cpu(s):  2.2 us,  2.8 sy,  0.0 ni, 95.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem :  32196.3 total,   2019.7 free,  26162.6 used,   4014.0 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.   4918.6 avail Mem 

 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
 8316 root      20   0 9354092   8.1g  19204 S  82.4  25.7  14356:40 qemu-syst+
10128 root      20   0 9265796   8.2g  21072 R  76.5  26.2  12721:27 qemu-syst+
 8745 root      20   0 5066388   4.2g  21120 S  35.3  13.5   8788:36 qemu-syst+
 7679 root      20   0    6924   3264   2316 R   5.9   0.0   0:00.02 top

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Ok, I will watch for that next time.  In the meantime, what about this from the log?  This would have been a recording done by SageTV that Plex then looks to index.  Not sure what is going wrong here though.

Screenshot 2020-01-13 at 11.21.48 PM.png

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