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Incorrect Used memory metric

vladislav_samoy
Inactive

Hi all

Can anybody explain why Dynatrace shows different Used memory memory than OS does?

Thanks in advance

Dynatrace screen

OS top and free -h screens


2 REPLIES 2

franz_soengen
Inactive


Hi Vladyslav,


this recent blog post may clear things up: https://www.dynatrace.com/news/blog/improved-host-...


Under linux:

 used = total – free – buff/cache

While Dynatrace calculates used memory as:

used = MemTotal - MemAvailable

In your case: 3.7GB - 2.1GB = 1.6GB (the value that's displayed in Dynatrace)

best regards
Franz


vladislav_samoy
Inactive

Thanks Franz


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