Where on Hubitat can I view current memory usage?
That's great!
Do you know if there's a compilation somewhere of all similar handy links?
I know there's @thebearmay 's fine driver, but if you just want to check misc stuff once in a while.
Thanks.
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Umm, I might.. but if I tell you, I might have to..
Haha this link should be stickied somewhere. I always have to rediscover it.
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I sort of remember that thread too. It really helps if you have an inkling on what search terms to use. Thanks!
The Wiki is tricky. I can't remember shite, so I have to make up silly associations or rhymes. We're both very fortunate I found it !
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Install Hub Info from HPM. Way too much info for one nurd 
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useful tip there, thank you @Rxich
On browsing mine, i see info like this:
2023-05-11 22:49:48,659056,0.77
2023-05-16 14:20:47,591796,0.01
2023-06-15 08:12:47,483316,0.0
(a few values from a long list)
It can be seen that the values, which i assume are available memory, get smaller so i assume eventually this will lead to a problem and may explain why i had a crash after a few months of my HB running.
Is this normal? Would this be the result of logs accumulating?
I am aware that a reboot will probably clear this up but then surely that would be covered by some form of tidy-up as part of the OS, unless there is a limit to how much memory logs (assuming it is this) can have.
PS- what is the 0.0x value after the comma?
Will keep an eye on this but may have to implement the auto-reboot on memory shortage rule.
The memory will decrease rapidly after reboot and then stabilize over time. Eventually it would stop decreasing altogether as the system gets low and starts to age out unused items in memory. That tends to happen once it geta low enough that the system starts to perform removal of older data. Initially it just leaves everything there incase it is needed. This is how java memory allocation works and typically isn't a bad thing.
You know, when I clicked on the link, I had previously bookmarked it!
But then again, I have a million bookmarks I never look at.
Columns are date/time, memory, CPU Load
so no need to worry about the diminishing memory value trends, as seen?
Still slightly concerned about the diminishing memory.
here are a few readings since the last reboot, less than an month ago:
Date/time,Free OS,5m CPU avg
2023-07-21 08:57:26,660432,0.72
2023-07-23 13:45:34,393960,0.05
2023-07-26 00:31:44,371336,0.04
2023-07-30 06:30:46,305036,0.05
2023-08-04 11:44:28,259792,0.04
2023-08-08 09:51:36,219908,0.13
Should i implement some house-keeping to avoid the inevitable?
remind me again, please, what is the minimum memory value required for a healthy system?
The hub will do clean up on its own, so it really isn't something to be to concerned about. It will also create an alert if it starts to run extreamly low. Memory being used is not inherently a bad thing. It is actually better to use as much as we can of it to maximize system performance. Memory management is also different based on OS and other criteria. This hub runs Linux with the meat of the HA platform running in a JVM. Both of them tend to keep things in memory more to keep performance high.
It varies depending on your appplication and device mix, but most people are good down to about 150-180K. 120K seems to be the absolute minimum.
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Picking up on this thread, i have been watching my system memory dissappear since i last rebooted back in August. Given this trend, you think i can expect a system crash or freeze in the coming weeks?
I could manually reboot but should i really have to or will it take care of itself?
Date/time,Free OS,5m CPU avg
2023-08-14 14:03:46,659652,0.75
2023-08-15 02:22:50,583252,0.0
2023-08-18 14:52:13,362588,0.01
2023-08-20 08:22:12,327316,0.03
2023-09-02 17:53:46,230588,0.01
2023-09-06 21:32:02,208280,0.05
2023-09-10 04:11:28,204768,0.01
2023-09-15 07:37:52,212316,0.15
2023-09-17 16:49:36,226292,0.04
2023-09-28 12:52:34,196616,0.01
2023-09-30 23:55:07,191468,0.01
2023-10-02 22:53:37,145256,0.0
I would schedule a monthly reboot - at some time that it will not inconvenience your family. There is no "uptime" championship ...... 
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Wise words, thanks.
What is the most simple/recommended method (app?) where i and schedule a monthly reboot?
Install @thebearmay’s Hub Information Driver, and then use Rule Machine to schedule a reboot using HID.
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