Below is a summary of three open-source tests we use to benchmark disk performance. Tests are automated to run 4 times a day, 365 days a week. At the beginning of every month, we update our list with the best cloud IaaS performer from the previous 30-day period. We congratulate all IaaS providers that make it on our list for their dedication in performance, but we do not endorse any these cloud providers.
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File System Calls (Using DBench): ProfitBricks US
DBench is a benchmark designed by the Samba project as a free alternative to netbench, but dbench contains only file-system calls for testing the disk performance.
DBench can be used to stress a filesystem or a server to see which workload it becomes saturated and can also be used for prediction analysis to determine how many concurrent clients/applications performing this workload the server can handle before response starts to lag.
File Copy (Using Linux CP command): Lunacloud
This measures the performance of the operating system’s ‘cp’ command, followed by a ‘sync’ (to flush any cache), executed on the local storage device. The file size is 10GB, and is copied to the same disk measured in mebibytes per second.
File copy measures read and write performance of the disk, which is important when processing massive amounts of data.