Massive CPU use - Command Java

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snowymoountain
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Joined: Thu Aug 02, 2018 4:24 pm

Massive CPU use - Command Java

Postby snowymoountain » Mon Aug 19, 2019 10:32 am

Hi,

I notice intermittent CPU spikes and descided to run command top today as CPU is at 30% on a 16 CPU machine...

It does go up and down but what is doing this... the CPU rate in command top was showing 162%

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
24135 zimbra 20 0 10.2g 5.5g 15224 S 108.9 35.8 6659:26 java


yasanthau
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Posts: 57
Joined: Sat Sep 13, 2014 12:52 am

Re: Massive CPU use - Command Java

Postby yasanthau » Mon Aug 19, 2019 5:50 pm

Hi,

162% is normal behavior for a 16 core cpu. Do you observe slowness on the server when doing generic tasks? Usually Zimbra uses good amount of resources. Also check the concurrent user logins at peak times.

Thanks,

Yasantha

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