The following numbers were gathered on an AWS cluster
Node network I/O performance
Node hdd performance
ubuntu@ip-10-73-143-203:~$ sync;time sudo bash -c "(dd if=/dev/zero of=bf bs=8k count=500000; sync)"
500000+0 records in
500000+0 records out
4096000000 bytes (4.1 GB) copied, 513.869 s, 8.0 MB/s
ubuntu@ip-10-73-143-203:~$ sync;time sudo bash -c "(dd if=/dev/zero of=/mnt/bf bs=8k count=500000; sync)"
500000+0 records in
500000+0 records out
4096000000 bytes (4.1 GB) copied, 71.3789 s, 57.4 MB/s
real 1m11.954s
user 0m0.388s
sys 0m9.600s
We have to make sure to use the /mnt partition since it writes much faster than the root one
CPU
Following is the output of 'cat /proc/cpuinfo' on one VM
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