ssd-mkfs-ext4.txt

# ADATA SP900 256GB
flashbench -a /dev/sda --blocksize=1024

align 68719476736	pre 172µs	on 174µs	post 173µs	diff 1.35µs
align 34359738368	pre 144µs	on 152µs	post 145µs	diff 6.99µs
align 17179869184	pre 174µs	on 168µs	post 163µs	diff -188ns
align 8589934592	pre 146µs	on 165µs	post 164µs	diff 9.91µs
align 4294967296	pre 171µs	on 197µs	post 195µs	diff 14.6µs
align 2147483648	pre 205µs	on 204µs	post 203µs	diff -426ns
align 1073741824	pre 166µs	on 170µs	post 172µs	diff 644ns
align 536870912	    pre 190µs	on 190µs	post 184µs	diff 3.08µs
align 268435456	    pre 177µs	on 186µs	post 182µs	diff 6.55µs
align 134217728	    pre 164µs	on 168µs	post 157µs	diff 7.97µs
align 67108864    	pre 137µs	on 143µs	post 139µs	diff 4.84µs
align 33554432  	pre 139µs	on 147µs	post 140µs	diff 7.73µs
align 16777216      pre 166µs	on 181µs	post 173µs	diff 11.2µs
align 8388608	    pre 146µs	on 145µs	post 145µs	diff -469ns
> align 4194304	    pre 128µs	on 139µs	post 138µs	diff 5.84µs
align 2097152	    pre 116µs	on 137µs	post 128µs	diff 15µs
align 1048576	    pre 126µs	on 124µs	post 123µs	diff -544ns
align 524288	    pre 100µs	on 107µs	post 98.3µs	diff 7.78µs
align 262144    	pre 125µs	on 130µs	post 121µs	diff 7.43µs
align 131072    	pre 135µs	on 140µs	post 135µs	diff 5.53µs
align 65536	        pre 121µs	on 124µs	post 118µs	diff 5.15µs
align 32768	        pre 131µs	on 136µs	post 131µs	diff 5.64µs
align 16384      	pre 125µs	on 127µs	post 121µs	diff 4.06µs
> align 8192	        pre 148µs	on 152µs	post 132µs	diff 12.3µs
align 4096	        pre 130µs	on 138µs	post 129µs	diff 7.95µs
align 2048	        pre 132µs	on 125µs	post 126µs	diff -4391ns

Erasure Block Size 4096K
Block Size 8K

stride = Page size / Filesystem block
stripe-width = Erase Block / Filesystem block

stride= 8KB / 4KB = 2
stripe-width = 4096KB / 4KB = 1024

mkfs.ext4 -E stride=2,stripe-width=1024 /dev/disk/by-label/LMDE