WenJunjie Blog

sysadmin

Amazon Aws EC2

| Comments

Amazon EC2 EBS

$0.12 per 1 million I/O requests

CloudWatch

find the process io statistics

iotop (Kernel >= 2.6.20)

type: r o

io.py (Kernel < 2.6.20)

dstat

dstat --top-io -d --top-bio -l
dstat -cdlmnps
dstat 1
strace -f -p pid -e trace=write

atop

cat /proc/[PID]/io

pidstat

dmesg (rhel 5.7)

sysctl vm.block_dump=1
dmesg -c
dmesg -c | cut -d: -f1 | sort | uniq -c | sort -rn| head

参考

Comments