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Seagate Backup Plus Slim External USB 3.0 2TB Hard Drive Review
SSDs, TRIM, and Available Disk Space - SSDs, TRIM, and Available Disk Space
Sat, January 23 2010 | 12:03PM | PermaLink Feedback?
There is a lot of discussion on forums about the impact of available disk space on SSD performance. A pertinent question was raised; At what point does drive utilization impact SSD performance? Running some quick tests, the results proved rather insightful. ... These test results demonstrate that drive performance is not directly related to available disk space - performance is relatively equivalent between a drive that's half full and a drive that's almost completely full. ... So if drive utilization is just a bit of seasoning in the SSD performance cuisine, why are people seeing the advantages they are seeing from over provisioning/short stroking? The improvements they are leveraging are a direct result of how TRIM/GC is implemented at the firmware/OS level. This implementation limits the drives performance relative to the amount of available disk space which can be utilized for TRIM/GC. More available space, lends itself to more efficient TRIM/GC operation, thereby improving real world performance.
Original URL, circa 2010:

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