Hello Michal,

Am 09.09.19 um 10:27 schrieb Michal Hocko:
> On Fri 06-09-19 12:08:31, Stefan Priebe - Profihost AG wrote:
>> These are the biggest differences in meminfo before and after cached
>> starts to drop. I didn't expect cached end up in MemFree.
>>
>> Before:
>> MemTotal:       16423116 kB
>> MemFree:          374572 kB
>> MemAvailable:    5633816 kB
>> Cached:          5550972 kB
>> Inactive:        4696580 kB
>> Inactive(file):  3624776 kB
>>
>>
>> After:
>> MemTotal:       16423116 kB
>> MemFree:         3477168 kB
>> MemAvailable:    6066916 kB
>> Cached:          2724504 kB
>> Inactive:        1854740 kB
>> Inactive(file):   950680 kB
>>
>> Any explanation?
> 
> Do you have more snapshots of /proc/vmstat as suggested by Vlastimil and
> me earlier in this thread? Seeing the overall progress would tell us
> much more than before and after. Or have I missed this data?

I needed to wait until today to grab again such a situation but from
what i know it is very clear that MemFree is low and than the kernel
starts to drop the chaches.

Attached you'll find two log files.

Greets,
Stefan