Hi,
I’m also having some problems with zram. My logs stop working after about 2 days…
###############################################################################
############### openhab3 ####################################################
###############################################################################
Ip = 192.168.28.92
Release = Raspbian GNU/Linux 10 (buster)
Kernel = Linux 5.10.52-v7l+
Platform = none
Uptime = 2 day(s). 18:56:4
CPU Usage = 6.48% avg over 4 cpu(s) (4 core(s) x 1 socket(s))
CPU Load = 1m: 0.29, 5m: 0.40, 15m: 0.45
Memory = Free: 1.03GB (27%), Used: 2.76GB (73%), Total: 3.79GB
Swap = Free: 2.43GB (100%), Used: 0.00GB (0%), Total: 2.43GB
Root = Free: 20.36GB (73%), Used: 7.39GB (27%), Total: 28.97GB
Updates = 13 apt updates available.
Sessions = 1 session(s)
Processes = 134 running processes of 32768 maximum processes
###############################################################################
openhabian@openhab3:~ $ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 29G 7.4G 21G 27% /
devtmpfs 1.8G 0 1.8G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 1.5M 1.9G 1% /run
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mmcblk0p1 253M 49M 205M 20% /boot
/dev/zram1 870M 276M 534M 35% /opt/zram/zram1
overlay1 870M 276M 534M 35% /var/lib/openhab/persistence
/dev/zram2 324M 43M 257M 15% /opt/zram/zram2
overlay2 324M 43M 257M 15% /var/lib/influxdb
/dev/zram3 420M 210M 180M 54% /opt/zram/zram3
overlay3 420M 210M 180M 54% /var/log
tmpfs 389M 0 389M 0% /run/user/1000
openhabian@openhab3:~ $ sudo zramctl
[sudo] password for openhabian:
NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT
/dev/zram3 zstd 450M 412.1M 65.1M 200M 4 /opt/zram/zram3
/dev/zram2 zstd 350M 119.6M 70.2M 82.8M 4 /opt/zram/zram2
/dev/zram1 zstd 900M 309M 12.4M 152.1M 4 /opt/zram/zram1
/dev/zram0 lzo-rle 450M 4K 86B 4K 4 [SWAP]
Hope somone can help.
Restart gets them to work again, as turning of zram… but this is obviously not a good solution…