All tests were performed on fresh instances powered up on July 26th, 2017. All instances had CentOS 7 x86_64. All instances cost $20 per month.
Unixbench version 5.1.3. FIO version 2.2.8.
2 CPU, 8 GB RAM, 100 GB SSD (NVMe)
Dedicated CPU: Yes
User ISO: Yes
2 CPU, 4 GB RAM, 48 GB SSD
Dedicated CPU: No
User ISO: No
2 CPU, 4 GB RAM, 60 GB SSD
Dedicated CPU: No
User ISO: Yes
2 CPU, 2 GB RAM, 40 GB SSD
Dedicated CPU: No
User ISO: No
fio --filename=test --rw=write --ioengine=libaio --direct=1 --blocksize=128K --size=15G --iodepth=32 --group_reporting --name=myjob
fio --filename=test --rw=read --ioengine=libaio --direct=1 --blocksize=128K --runtime=300 --iodepth=32 --group_reporting --name=myjob
fio --filename=test --ioengine=libaio --direct=1 --norandommap --randrepeat=0 --runtime=1800 --blocksize=4K --rw=randwrite --iodepth=32 --numjobs=8 --group_reporting --name=myjob
fio --filename=test --ioengine=libaio --direct=1 --norandommap --randrepeat=0 --runtime=600 --blocksize=4K --rw=randread --iodepth=32 --numjobs=8 --group_reporting --name=myjob