Performance in WinBench 99
WinBench is going to be our last test today. This benchmarking set helps to estimate the disk subsystem performance in desktop applications.
The following table compares the arrays in two integral subtests: Business Disk Winmark and High-End Disk Winmark:
Winbench99 requests a lot of writes, so it is not at all surprising that RAID5 arrays demonstrate poor results because of their slow write speed. And that’s also the reason for RAID1 and RAID10 arrays to be just a little faster than the single drive. RAID0 arrays show a dependence of the speed on the number of drives in the array, but the proportion coefficient is small.
We see RAID10 profiting most of all from lazy write (it was slower than RAID5 in the WriteThrough mode!). As for other arrays, WriteBack does have a positive effect on them, but this effect is not so impressively great.