The Disk Defrag Difference
PerfectDisk 2008
PerfectDisk defrags the fastest, but fails in the subsequent benchmarks
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| You won’t see all of PerfectDisk’s available defragmentation options unless you first run an analysis of the drive. |
PerfectDisk 2008 ($40, www.raxco.com) sports a similar feature set to Diskeeper 2008. In fact, the programs are nearly identical in basic functionality. But PerfectDisk does tweak a few of our favorite features just a bit. For example, PerfectDisk, like Diskeeper, allows you to establish an automatic defragmentation that runs whenever your computer is idle; however, it also lets you tie defragmentation runs to your screensaver. When your screensaver starts, PerfectDisk starts. We like this additional flexibility and would welcome even further customization in future editions of the software.
For the time conscious, PerfectDisk 2008 does a great job of estimating exactly how long the defragmentation process will take and provides approximate CPU usage info and fragmentation level at the beginning and end of the run. After a thorough analysis of your drive, the program suggests ways to improve performance. In our case, we needed a boot-time defragmentation. But we couldn’t select it from a menu—we had to run the analysis first, which then gave us that option.
The program reported that our test drive was 7.5-percent fragmented. Following a two hour, 24 minute defragmentation, our startup times increased by approximately 40 seconds compared to the startup times following Vista’s defragmentation and increased by two seconds when compared to the fragmented drive. PerfectDisk was the only defragger that improved our original shutdown time, albeit by just four seconds. But it also netted us a minor loss of performance in the PCMark Vantage benchmark—a decrease of 6 percent over the measured performance following a defragmentation by Vista’s built-in application.
| PCMark Overall |
3,114 |
3,162 |
2,952 |
| Startup (sec) |
172 |
133 |
170 |
| Shutdown (sec) |
20 |
34 |
16 |
| best scores are bolded. |
Don’t Waste Your Money or Time!
You shouldn’t break the bank for negligible performance gains
With all of the benchmarking completed, we find it rather suspicious that disk defragmentation did nothing to improve the performance of our machine. However, we must note that our test drive was not terribly fragmented to begin with due to Vista’s auto-defragger running on our test bed. Even the paid-for programs were unable to yield any positive gains—quite the opposite, in some instances.
We had high hopes for Diskeeper at first. Given the relatively high level of fragmentation it quoted compared to Vista’s built-in app, we assumed the program’s analysis routines were seeing fragmentation that Vista couldn’t. In turn, we expected Diskeeper to do a better job of moving files around and ultimately give us better benchmark numbers than the Vista client.
That was wishful thinking on our part, as Diskeeper didn’t trump the Vista defragmentation routine at all. While it did beat PerfectDisk by 150 points in our PCMark Vantage test, we hardly consider this a trouncing. We even fired up both programs’ boot-time defragmentation options to see if these additional features would make any difference on our benchmarks. Zilch.
We like the Vista defragmentation program for the simple fact that it’s, well, there. It comes with Vista and is enabled by default and runs its defragmentation routines during the wee hours of the morning. And even if you alter this time or run your own manual defragmentation, the program runs at a low processor priority, so you can easily multitask without hampering your computing experience.
That said, we hate that Vista gives you no estimated time of completion. You also get no way to see what the application is doing, any graphical representation of how fragmented your drive is, or any of the other features we’ve come to expect in even the most entry-level of defragmentation applications. Even if the pretty moving colored blocks don’t correspond to the actual data on our drives, at least they give us something to look at during the interminable two-hour-plus defrag process. You even have to run a command-line version of the application just to see an analysis of your drive’s fragmentation level.
If you don’t mind manually running your defragger and you can’t live without a visual representation of the fragmentation level of your drive, try Auslogics’s Disk Defrag. It doesn’t outperform Vista in our tests, but it runs faster than the operating system’s built-in defragger, and it displays a pretty picture to let you know that it’s working. Even if disk defragmentation ultimately does nothing for your computer—as our benchmark numbers would have us believe—you don’t need to spend money on a third-party program when Auslogics’s Disk Defrag is a serviceable free solution.