EXT4 File-System Tuning Benchmarks
Written by Michael Larabel in Software on 16 November 2012. Page 3 of 4. 10 Comments

There's a slight advantage to using "nobarrier" for disabling write barriers, but this is only recommended if your system is sane and safely backed up by battery or other means. Using the "data=journal" and "nodelalloc" options slowed down the evolutionary file-system while disabling the SSD TRIM/Discard command also had a negative impact on the results.

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