Hello everyone
Info:
- System: Manjaro KDE
- KDE version: 5.21.4
- CPU: i5-4460
- RAM: 16 GB
- Swap: 16 GB
- Kernel version: 5.11.14-1-MANJARO
Example
Before sleeping
$ free -h
total used free shared buff/cache available
Mem: 15Gi 4,7Gi 9,6Gi 326Mi 1,3Gi 10Gi
Swap: 15Gi 0B 15Gi
After sleep
$ free -h
total used free shared buff/cache available
Mem: 15Gi 5,2Gi 5,9Gi 3,4Gi 4,4Gi 6,7Gi
Swap: 15Gi 0B 15Gi
The most suspicious for me is the shared memory usage as it stays at max ~500MB during normal usage.
Trying to clear chaches
$ sudo bash -c 'sync; echo 3 > /proc/sys/vm/drop_caches'
[sudo] password for :
$ free -h
total used free shared buff/cache available
Mem: 15Gi 5,2Gi 6,3Gi 3,4Gi 4,1Gi 6,6Gi
Swap: 15Gi 0B 15Gi
Trying to use program that just allocates memory from (linuxatemyram) Experiments and fun with the Linux disk cache
$ sudo swapoff -a
$ free -h
total used free shared buff/cache available
Mem: 15Gi 5,7Gi 5,2Gi 3,3Gi 4,7Gi 6,3Gi
Swap: 0B 0B 0B
$ ./munch
Allocated 1 MB
Allocated 2 MB
Allocated 3 MB
...
Allocated 6556 MB
Killed
$ free -h
total used free shared buff/cache available
Mem: 15Gi 5,6Gi 6,4Gi 3,3Gi 3,5Gi 6,4Gi
Swap: 0B 0B 0B
The buff/cache dropped by about 1GB but shared memory didn’t change.
I’m pretty sure that isn’t normal as this affects my ability to run memory hungry apps after some time. (The system freezes if I do so)
I appreciate any help 