- Write Cache: Disabling the write cache improves latency, but sacrifices bandwidth in most cases.
- Drives: Intel drives have the lowest latencies (<1ms) with the fastest configuration being in RAW with Write Cached Disabled (48µs write latency!!)
- Note: The intel drive also saw a bandwidth increase with write cache disabled
- File Systems: XFS has lower write latencies than EXT4 (1-2x faster).
TRIM:TRIM TRIM makes minimal difference in the SSD write latencies(although it may be because the drive is completely empty at the beginning of the benchmark)