Parkdale is described as 'Get the read and write speed from your harddisks, cdrom devices and network servers in Kilobyte, Megabyte or even Gigabyte per Second. There are three different modes, from easy to advanded' and is a Benchmark Tool in the OS & Utilities category. There are more than 10 alternatives to Parkdale for Windows, PortableApps.com and Online / Web-based. The best alternative is CrystalDiskInfo, which is both free and Open Source. Other great apps like Parkdale are CrystalDiskMark (Free, Open Source), HD Tune (Freemium), UserBenchMark (Free) and AS SSD Benchmark (Free).
CrystalDiskInfo is a HDD/SSD utility software which supports S.M.A.R.T. It shows the health status much more clearly than similar tools. The "Function / Graph" is especially interesting for the "Reallocated Sectors Count".
UserBenchmark is a free all-in-one benchmarking application. Benchmark your CPU, GPU, SSD, HDD and USB Drives then compare results with other users and see which parts you can upgrade together with the expected performance improvements. CPU benchmarks bias toward Intel.