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Apple Computing Products:
macOS - Apps and Programs
Not Enough RAM When Using Adobe Acrobat OCR
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<blockquote data-quote="Randy B. Singer" data-source="post: 1921063" data-attributes="member: 190607"><p>Yes, each time rotating disk hard drives have increased in size over the years, from tens of MB's, to tens of GB's, to multiple TB's, that's exactly what folks said. And each time they were wrong.</p><p></p><p>Each time that hard drives got bigger, the amount of free space that was required to keep your Mac running reliably didn't remain at a roughly fixed size. Instead it keep on increasing, and the roughly 20 to 30% rule of thumb remained constant. </p><p></p><p>It could vary quite a bit, though. It's a rule of thumb, not a hard and fast rule. The main applicable variable being how much disk fragmentation there was. A drive with extremely low fragmentation (drive fragmentation; the Mac defragments files automatically) could be filled up almost all the way. A drive with a lot of fragmentation might be for all intents and purposes full with as much as 40% free space remaining, no matter how big the drive was. Even if the drive was huge.</p><p></p><p><a href="http://www.macattorney.com/ts.html" target="_blank">http://www.macattorney.com/ts.html</a></p><p>Item #5 and Note #1</p><p>Note the many citations.</p><p></p><p>Apparently as a drive gets bigger, the amount of space required for meta data increases in proportion to the drive's total capacity.</p><p></p><p>This isn't really a matter that is up for debate. It's been settled for many years now. Every single major Macintosh expert agrees that this is a thing. </p><p></p><p>Interestingly, not only hasn't this changed with the move to SSD's, the amount of free space that you must maintain on an SSD has actually increased from what it was for RDHD's (not only do SSD's need to have room made available for meta data, but they need some extra space because of the different way that they deal with full or dead blocks of data.)</p></blockquote><p></p>
[QUOTE="Randy B. Singer, post: 1921063, member: 190607"] Yes, each time rotating disk hard drives have increased in size over the years, from tens of MB's, to tens of GB's, to multiple TB's, that's exactly what folks said. And each time they were wrong. Each time that hard drives got bigger, the amount of free space that was required to keep your Mac running reliably didn't remain at a roughly fixed size. Instead it keep on increasing, and the roughly 20 to 30% rule of thumb remained constant. It could vary quite a bit, though. It's a rule of thumb, not a hard and fast rule. The main applicable variable being how much disk fragmentation there was. A drive with extremely low fragmentation (drive fragmentation; the Mac defragments files automatically) could be filled up almost all the way. A drive with a lot of fragmentation might be for all intents and purposes full with as much as 40% free space remaining, no matter how big the drive was. Even if the drive was huge. [URL code="true"]http://www.macattorney.com/ts.html[/URL] Item #5 and Note #1 Note the many citations. Apparently as a drive gets bigger, the amount of space required for meta data increases in proportion to the drive's total capacity. This isn't really a matter that is up for debate. It's been settled for many years now. Every single major Macintosh expert agrees that this is a thing. Interestingly, not only hasn't this changed with the move to SSD's, the amount of free space that you must maintain on an SSD has actually increased from what it was for RDHD's (not only do SSD's need to have room made available for meta data, but they need some extra space because of the different way that they deal with full or dead blocks of data.) [/QUOTE]
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Not Enough RAM When Using Adobe Acrobat OCR
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