[[6.8.3] docker image huge amount of unnecessary writes on cache]

Today found this post... 

 

I run iotop for few hours:

Start -> Mon May 11 11:45:17 CEST 2020
End -> Mon May 11 18:49:54 CEST 2020

root@VDS:~# iotop -oa
Total DISK READ :       0.00 B/s | Total DISK WRITE :      24.44 M/s
Actual DISK READ:       0.00 B/s | Actual DISK WRITE:      24.18 M/s
  TID  PRIO  USER     DISK READ DISK WRITE>  SWAPIN      IO    COMMAND
 6169 be/0 root         65.20 M    100.45 G  0.00 %  1.06 % [loop2]
18510 be/4 root         58.20 M   1852.94 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
18491 be/4 root         59.39 M   1839.84 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
10221 be/4 root         59.02 M   1809.12 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
18515 be/4 root         57.02 M   1775.67 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
18601 be/4 root         58.44 M   1751.80 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
18600 be/4 root         60.01 M   1746.48 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
18492 be/4 root         59.45 M   1741.75 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
18502 be/4 root         58.53 M   1730.81 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
18451 be/4 root         58.43 M   1666.26 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
18505 be/4 root         60.94 M   1611.01 M  0.00 %  0.03 % shfs /mnt/user -disks 511 2048000000 -o noatime,allow_other -o remember=0
 6192 be/4 root        140.00 K   1516.05 M  0.00 %  0.11 % [btrfs-transacti]
 [...]

 

Everything after last line is less then 200M writes.

I've new SSD disk with 400 TBW and 5y warranty