"Your Redis network connection is performing extremely poorly"

[Ed_S]

Have you rebooted the server since making those kernel config changes?

@Ed_S

my list of standard instant diagnostics:

cat /etc/lsb-release
uptime
df -h /
free
vmstat 5 5
dmesg|egrep -i "memory|oom|kill"
ps auxrc

Maybe

lscpu

would also be helpful