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TRIM Performance

The SF-1200 fully supports TRIM and to test it out I peppered the Corsair Force drive with random writes and used HD Tach to look at sequential read/write speed across all LBAs of the used drive.

Remember we should be seeing sequential read/write performance of around 265/251 MB/s:

Performance is down, as you'd expect, but not to unbearable levels and it's also pretty consistent. While most drives will have worse write performance than read performance, if you look closely you'll see that read speed falls further than write speed. Perhaps all of the tracking overhead is making calculating and retrieving data more difficult? Remember that you can't just read data back from the SF drive since the full data isn't stored, you have to perform math on the stored data to retrieve what was actually written.

I then TRIMed the entire contents of the drive and re-ran the test:

Performance looks better. It's not at peak performance yet (~78% of peak read speed, 93% of peak write speed) but TRIM appears to be working relatively aggressively. The SandForce controller is very resilient, especially when combined with TRIM. My only concern continues to be long term reliability of these drives.