[ntp:questions] questions] Ntpq.exe memory issue with windows 2019

David J Taylor davidtaylor at writeme.com
Fri Oct 23 06:29:24 UTC 2020

Thanks for your report.

On a newly installed PC running Windows-10 Pro, using standard NTP I see a
loss of "Available" memory of about 16 kB per ntpq invocation.

Numbers: running ntpq in a Perl script.  This Perl script is called (with
different parameters) four times for each node.  I'm monitoring ~25 nodes,
so that's about 100 calls for each MRTG check, which is every five minutes,
making 28,800 calls per day.  Loss (by visual inspection) is 8 GB in 17
days.  So approximately 16 kB per ntpq invocation.

From other monitoring, ntpd is completely constant in memory usage (35-40

I'll see whether entering an NTP bug still works....it does so I'll add
evidence to your 3695.


Update - no stray ntpq.exe processes showing here in the RAMMAP page table.

Perhaps the memory usage here is just cached data until the memory starts to
run out?


Looks like the pattern changed from ~23:00 last night.

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