Saturday, May 09, 2020

Gems Aus Brendan Gregg

British trained Irishman is the king of ops at NFLX.

What should you do in the first minute of trying to debug a performance issue?

uptime
dmesg | tail
vmstat 1
mpstat -P ALL 1
pidstat 1
iostat -xz 1
free -m
sar -n DEV 1
sar -n TCP,ETCP 1
top

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