This is a continuation of the DAQ Timing Error investigation.

Overview.
The swapfile setting is enabled on each of the DAQ servers.
We believe that the required RAM capacity is sufficient for each server, so we check the situation by eliminating the swapfile.

In k1fw0 and k1fw1, the error packets are generated in daqd.fw*.log, so we check the frequency of occurrence here as well.
Ask for retransmission of 5 packets; port 7097

Work
1. Check existence of swap file
$ free

2. Check swap settings
$ sudo swapon -s
Confirm the output swap partition. 

3. comment out the swap partition in /etc/fstab
 Backup of original file: /etc/fstab.20220624 
 ex.
 #/swapfile none swap sw 0 0
 (do not delete the partition so that it can be recovered)

 Swap partition name :
 k1dc0, k1fw1, k1tw0, k1tw1, k1nds0, k1nds1, k1bcst0: /swapfile
 k1fw0: /dev/sda2

4. Reboot
 $ sudo shutdown -r now

Target
k1dc0, k1fw0, k1fw1, k1tw0, k1tw1, k1nds0, k1nds1, k1bcst0
k1nds2 is not changed.