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Old 10-13-2010, 01:13 PM   #13
MickMcGeough
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Quote:
Originally Posted by FanIn80 View Post
Maybe, though I've heard some people question if it even needs it (I don't know enough about how drives work to go either way on this, although my spider-sense tells me TRIM would be good).
I ran XBench shortly after installing my X25 SSD. Most the benchmarks are the same, but the random writes take a big hit.

Uncached random writes before drive has been written at least once:
4K blocks: 74.36MB/s
256K blocks: 78.59MB/s

After being written to at least once:
4K blocks: 17.21MB/s
256K blocks: 28.35MB/s

That said, I don't know if I've noticed it? Reads are the same speed, and sequential writes are nearly the same. This is a synthetic benchmark and from what I've read real-world performance doesn't take a huge hit, but the performance hit is definitely there.

Problem with TRIM support is, I'm guessing you'll have to wipe the entire drive completely clean and start over to enable it. Time Machine FTW?
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