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/usr/bin/top -H -w 125 -n 1 -b -o +RES | egrep " mono$" | wc -l
Anyone else notice this behavior?
In the past I've seen this jump in a number of steps, of a similar order of magnitude, i.e. adding 40-60 mono threads within a few minutes - over time up to ~ 260 threads. In that case a small amount of swap was being used so I restarted Cumulus, even though I didn't really note any functional performance issues. (I'm trying to avoid hitting the SD card; most I/O goes to an SSD.)
This is part of an effort to restart Cumulus or even reboot the Pi before performance suffers (via a watchdog).
Cheers,
Bob
A portion of the log...
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2017/12/06 21:00:53, 16
2017/12/06 21:01:18, 19
2017/12/06 21:01:43, 26
2017/12/06 21:02:07, 34
2017/12/06 21:02:32, 41
2017/12/06 21:02:57, 47
2017/12/06 21:03:22, 55
2017/12/06 21:03:47, 62
2017/12/06 21:04:11, 70
2017/12/06 21:04:36, 78
2017/12/06 21:05:01, 82
2017/12/06 21:05:26, 80
I've been tinkering with posting some Pi / Cumulus MX "health metrics" at http://raspberrypi_02:8998/status.html - Hope to eventually add some highcharts...