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Besides defragmenting program files, the defragmenting tool can also reduce the time it takes to load programs and open files. For example, the Windows 9x defragmenter included the Intel Application Launch Accelerator which optimized programs on the disk by placing the defragmented program files and their dependencies next to each other, in the ...
It can also defragment multiple volumes simultaneously. According to Scott Hanselman of Microsoft, Windows 7 [verification needed] and later do defragment a solid-state disk (SSD) but in a completely different way. There is less incentive for defragmentation of SSDs because file fragmentation has less performance impact on them and they handle ...
Defragmentation should be disabled on solid-state drives because the location of the file components on an SSD does not significantly impact its performance, but moving the files to make them contiguous using the Windows Defrag routine will cause unnecessary write wear on the limited number of write cycles on the SSD.
Flash memory-based SSDs do not need defragmentation. However, because file systems write pages of data that are smaller (2K, 4K, 8K, or 16K) than the blocks of data managed by the SSD (from 256 KB to 4 MB, hence 128 to 256 pages per block), [ 50 ] over time, an SSD's write performance can degrade as the drive becomes full of pages which are ...
Auto defrag when idle Stable release; Auslogics Disk Defrag Auslogics Freeware: FAT16, FAT32, NTFS Windows XP and later Yes Yes Yes Yes Yes
[b] The file system could defragment the disk immediately after a deletion, but doing so would incur a severe performance penalty at unpredictable times. Now, a new file called F, which requires seven blocks of space, can be placed into the first seven blocks of the newly freed space formerly holding the file B, and the three blocks following ...
TRIM can take a lot of time to complete, depending on the firmware in the SSD, and may even trigger a garbage collection cycle. [citation needed] This penalty can be minimized in solutions that do batched TRIMs and/or periodic TRIMs, rather than trimming upon every file deletion, by scheduling such batch jobs for times when system utilization ...
Unlike the Windows built-in defragmenter tool, Contig can defragment individual files, individual directories, and subsets of the file system using wildcards. Contig does not move any data except that belonging to the file in the question, so the amount it can defragment a file is limited to the largest contiguous block of free space on a system.