IOMeter presents a good test case for both seek times and command queuing.
Wow. That's, uh. Wow. With the exception of the web server test pattern, which is made up entirely of read requests, the ANS-9010 completely dominates our IOMeter transaction rate tests. Even in single-drive mode, it's quicker than the i-RAM and much faster than the X25-E. The Intel SSDs prove worthy competition with the web server test pattern, but they're still trumped by the ANS-9010 running in RAID mode. Splitting ACard's RAM disk into a striped array just about doubles its transaction rates at higher load levels.
Of course, there's a price to be paid for those high transaction rates. The ANS-9010 also consumes quite a lot of CPU power in the process. To put these results into perspective, we've whipped up another set of graphs that illustrates the transaction rate per percent CPU utilization. Since our mechanical hard drives don't deliver anywhere near SSD levels of performance here, we've left them out of the equation, with the exception of the VelociRaptor.
The ANS-9010's RAID config may be exceptionally fast, but there's a greater CPU utilization cost for each transaction than with a single-drive setup. Interestingly, the i-RAM and the single-drive ANS-9010 are evenly matched here. However, Intel's SSDs have the highest transaction rates per CPU cycle overall.
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