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About danwat1234

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  1. Windows' built-in defragger tends to not produce good results when dealing with mechanical drives mostly filled with multiGB files. And refuses to defrag an SSD.
  2. Very small effect on the life of the SSD. I do it only a few times a year. Reduces CPU overhead when accessing fragmented files. And performing this eliminates I/O bottleneck for this experiment so it is clear the process is CPU constrained. Ridiculous CPU usage when defragging mechanical drives as well.
  3. Thanks for the reply! 3 years later, I am running Defraggler 2.21.993 64-bit on Windows 8.1 on the same machine in the OP. This time on my 250GB SSD. 13% fragmentation. Started it about 4 hours ago. Over 3 hours of 1 core CPU usage now, 29% done on a complete defrag cycle (not quick). Over 350MB of RAM used. Very CPU constrained. If this was running on a new Intel Ice Lake (10th gen) or AMD Ryzen 2 CPU at 5GHZ I would guesstimate it would be about 4x faster but would still be CPU bottlenecked some times. I did just now stop the defrag and select around the top 25 most fragmented files and it successfully completed that in about 15 minutes. Now I am doing a Full defrag (12% fragmented) again. I'll edit or reply again when it finishes. Is there a way to utilize SSE instructions to optimize the computation? EDIT: First impressions, still going to take 'forever' to complete. EDIT: Took about 5-6 hours to complete with 3+ hours of CPU time in task manager.
  4. I would like this feature as well. Why not.
  5. Hello, I have used Defraggler off and on for years. I have version 2.17 or so but I doubt 2.2 is any different. The CPU utilization is huge. Monstrous. In comparison to the Windows 7+ built in defragger. Often it uses a full core of my CPU, a 3.45GHZ Core 2 Duo in order to defrag a 2TB bittorrent / storage drive. In other words, the algorithms used cannot keep up with the IO constraints of a laptop storage drive (Samsung M9T). Also when analyzing, the CPU is often the bottleneck. I have notice a lot of aftermarket defrag/optimization programs are very CPU heavy. It is quite obnoxious and should be a priority. But since you are not the only ones, I think O&O used to (haven't test the later versions) have this issue too, and I know Ultimat Defrag is CPU heavy, though the optimization techniques are more complex (sorting by name). Please try to reduce it. It'll save time and power.
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