I see that the RAM cached bar is almost maxed. Can't see any indication on the Process tab about whats using all this RAM...
Is this a problem? How can i see what is caching all this ram?
- Capture.PNG (73.01 KiB) Viewed 7382 times
Heavy RAM usage?
Moderator: Lillian.W@AST
-
nero78
- Posts: 76
- youtube meble na wymiar Warszawa
- Joined: Sat Mar 05, 2016 7:01 pm
Heavy RAM usage?
Today my NAS is a bit weird. Can't connect via AiData and different aspects of the ADM gui is unresponsive.
I see that the RAM cached bar is almost maxed. Can't see any indication on the Process tab about whats using all this RAM...
Is this a problem? How can i see what is caching all this ram?
I see that the RAM cached bar is almost maxed. Can't see any indication on the Process tab about whats using all this RAM...
Is this a problem? How can i see what is caching all this ram?
-
MikeG.6.5
- Posts: 917
- Joined: Fri May 15, 2015 1:56 am
Re: Heavy RAM usage?
The cache is doing exactly what you want it to do. It's caching info off the HDD's based on the recent usage of that data, so it can get sent to the client device faster.
There is a small utility that can be used to clear cache, but it's going to have an adverse affect on the NAS over-all.
There is a small utility that can be used to clear cache, but it's going to have an adverse affect on the NAS over-all.
-
nero78
- Posts: 76
- Joined: Sat Mar 05, 2016 7:01 pm
Re: Heavy RAM usage?
Ok, so no worries thenMikeG.6.5 wrote:The cache is doing exactly what you want it to do. It's caching info off the HDD's based on the recent usage of that data, so it can get sent to the client device faster.
There is a small utility that can be used to clear cache, but it's going to have an adverse affect on the NAS over-all.
Thanks for your reply-
Kerry
- Posts: 457
- Joined: Wed Jul 03, 2013 9:35 pm
Re: Heavy RAM usage?
Mine has the same cache even though I have 10GB RAM. My NAS is very responsive so it does not seem to influence.
- 擷取.PNG (32.72 KiB) Viewed 7361 times
-
nero78
- Posts: 76
- Joined: Sat Mar 05, 2016 7:01 pm
Re: Heavy RAM usage?
Ok. it's the same that windows does. I didnt think linux did this.Kerry wrote:Mine has the same cache even though I have 10GB RAM. My NAS is very responsive so it does not seem to influence.
Found out why my system was a bit sluggish. Was not the memory.
Thanks for reply guys.
-
BeastMTL
- Posts: 1
- Joined: Wed Jul 05, 2017 5:01 pm
Re: Heavy RAM usage?
The previous post is correct in that it is normal behavior.
Although I have done some tweaks on my end (still a linux newbie)
that has helped system responsiveness. I am not an expert, so please take this with a ocean of salt.
1. Changed swappiness from 60 to 0
- cache is managed by the linux kernel and default setting is 60. Since I am still working on
bringing my content onto it, there are a lot of file uploads happening.
After some digging, found out that it was highly likely that some libraries were being forced
into disk cache to accommodate files, which caused the system performance to be rather sluggish
2. Added a cron job to clean up the cache once a day at 1am.
It hasn't been long enough so I can recommend doing this yet. But I have noticed better performance
out of my system. But that could be coincidental or wishful thinking.
Although I have done some tweaks on my end (still a linux newbie)
that has helped system responsiveness. I am not an expert, so please take this with a ocean of salt.
1. Changed swappiness from 60 to 0
- cache is managed by the linux kernel and default setting is 60. Since I am still working on
bringing my content onto it, there are a lot of file uploads happening.
After some digging, found out that it was highly likely that some libraries were being forced
into disk cache to accommodate files, which caused the system performance to be rather sluggish
2. Added a cron job to clean up the cache once a day at 1am.
It hasn't been long enough so I can recommend doing this yet. But I have noticed better performance
out of my system. But that could be coincidental or wishful thinking.