topic Re: Memory page faults in Open Q&A

Memory page faults

Mizső — Mon, 12 Sep 2022 09:27:07 GMT

Hi Folks,

Is it possible to define which process is responsible for the high memory page faults on a host?

Thanks in advance.

Br, Mizső

Re: Memory page faults

bradley_danyo — Wed, 21 Sep 2022 20:48:42 GMT

Hello,

You can use the data explorer and the metric from the screenshot to see page faults per process group:

Thank you

Re: Memory page faults

Mizső — Wed, 21 Sep 2022 21:10:54 GMT

Hi @bradley_danyo,

Thanks very much for the suggestion. It is a so simple solution. I have never heared about this metric.

Best regards, Mizső

Re: Memory page faults

bradley_danyo — Wed, 21 Sep 2022 21:50:51 GMT

Sure thing glad I could help. If you're every curious and looking for a specific metric, you can always try searching in the data explorer or the Metrics tab on the left hand menu of the Dynatrace tenant.

Re: Memory page faults

Mizső — Wed, 21 Sep 2022 22:16:57 GMT

Hi @bradley_danyo

Shame on me. 😉 I have already been using DT since 2019 daily basis... so I would have thought this solution. Thanks again.

Have a nice day.

Br, Mizső

Re: Memory page faults

Yosi_Neuman — Mon, 28 Nov 2022 10:24:11 GMT

Hi @bradley_danyo & @Mizső

Tried this metric (builtin:tech.generic.mem.pageFaults) in few environments (v254) and its keep return 0, also for Maximum, while the host metric (builtin:host.mem.avail.pfps) return numbers.

In demo environment found numbers for process level but they are not accumulate with the host level

In process we see billions page faults per second

While from host we see just few thousands per second

Any explanation on this odd behavior of the metric per process?

BTW, Is there a place within the UI ,old or new, that we can see this information regarding page faults per process ?

Thanks in advance

Yos