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Memory page faults

Mizső
DynaMight Guru
DynaMight Guru

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

Dynatrace Community RockStar 2024, Certified Dynatrace Professional
5 REPLIES 5

bradley_danyo
Dynatrace Mentor
Dynatrace Mentor

Hello,

 

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

bradley_danyo_0-1663793293098.png

 

Thank you

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.

Yosi_Neuman_2-1669626989188.png

Yosi_Neuman_3-1669627032679.png

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

Yosi_Neuman_7-1669630850980.png

While from host we see just few thousands per second

Yosi_Neuman_8-1669630901094.png

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

dynatrace certificated professional - dynatrace master partner - Matrix Soft Ware Division - Israel

Mizső
DynaMight Guru
DynaMight Guru

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

Dynatrace Community RockStar 2024, Certified Dynatrace Professional

bradley_danyo
Dynatrace Mentor
Dynatrace Mentor

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.

 

bradley_danyo_0-1663797043776.png

 

Mizső
DynaMight Guru
DynaMight Guru

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

 

 

Dynatrace Community RockStar 2024, Certified Dynatrace Professional

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