He oversees the day-to-day operations of the site to ensure readers have the most up-to-date information on everything from operating systems to gadgets. Jason Fitzpatrick is the Editor-in-Chief of How-To Geek. It's not really something to lose sleep over considering the sizes of modern SSDs and HDDs. On the other hand, if you pick a 64 KB block size with 100,000 files, you'll waste an average of 3.2 gigabytes. So, if you choose a 4096 byte block size, and you've got 100,000 files, you'll waste only about 200 megabytes (4KB/2*100,000) of storage space. The average amount of wasted space is half of the allocation unit (block) size per file on the volume. That is an extreme example, however, and you won't typically see losses like that with average use. If you shrink your allocation unit size to 4KB, you'd only waste 25% of the drive's total volume. If you had enough 3 KB files to fill an entire drive formatted that way, you'd wind up wasting more than 95% of the drive's total volume. That means you've used up 64 kilobytes of storage to store only 3 kilobytes. If you have an allocation unit size of 64 kilobytes and you write a 3-kilobyte file to it, that entire block will be filled. Each allocation unit can only hold one file at the most. In the opposite situation - many small files with a large allocation size - you wind up wasting storage space.
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