![]() ![]() Trim and garbage collection can work together to improve SSD performance and endurance by freeing up used blocks. ![]() The read-modify-write cycle also causes write amplification, which hurts the SSD's overall endurance. The read-modify-write cycle hurts the SSD's overall performance because it must now do three operations instead of a single operation. In order to write new data to used blocks, the SSD is forced to perform a read-modify-write cycle. Over time, most of the empty blocks will become used blocks that contain user data. When your SSD is fresh out of the box, all of the NAND blocks are empty so the SSD can write new data to the empty blocks in a single operation. Trim and garbage collection are technologies that modern SSDs incorporate to improve both their performance and endurance.
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