Harddisk (S/WO) S/W dd bonnie++ (47gb normalized) seeker_baryluk fio
block read 4KB IOPS write 4KB IOPS
read write read write rewrite seeks/s ms/seek seq Q1 rand Q32 seq Q1 rand Q32
Hitachi A7K1000 500GB 87 MB/s ? 78584 KB/s 73830 KB/s 36246 KB/s 81 12.320
Hitachi A7K2000 1000GB 138 MB/s 134 MB/s 120256 KB/s 126000 KB/s 61271 KB/s 77 12.965
WD Scorpio Blue 250GB 81 MB/s ? 71634 KB/s 54478 KB/s 26960 KB/s 54 18.248
WD Caviar Green 500GB 91 MB/s 95 MB/s 85354 KB/s 65404 KB/s 36764 KB/s 66 15.091
WD Caviar Green AF 1TB 126 MB/s 125 MB/s 121785 KB/s 83022 KB/s 47538 KB/s 66 14.978 124 9654 114
WD Caviar Green AF 2TB 124 MB/s 123 MB/s 120429 KB/s 82236 KB/s 47714 KB/s 59 16.704
WD Caviar Black 500GB 95 MB/s 99 MB/s 93080 KB/s 73037 KB/s 40964 KB/s 81 12.230
WD Caviar Black 640GB 115 MB/s 114 MB/s 113695 KB/s 85924 KB/s 47178 KB/s 81 12.336
WD Caviar Black 1TB 134 MB/s ? 113383 KB/s 78411 KB/s 45664 KB/s 76 13.038
WD Red 2TB AF 145 MB/s 144 MB/s 140896 KB/s 92622 KB/s 53268 KB/s 48 20.718 14048 94 112
WD Red 3TB AF 155 MB/s 155 MB/s 150935 KB/s 96831 KB/s 56314 KB/s 47 21.097 14252 94 10362 110
WD Red Pro 3TB AF 183 MB/s 183 MB/s 177523 KB/s 167855 KB/s 75897 KB/s 82 12.180 33756 178 34405 203
WD RE3 500GB 118 MB/s 116 MB/s 121418 KB/s 87859 KB/s 48113 KB/s 83 12.010
WD RE4 500GB 139 MB/s 137 MB/s 134882 KB/s 104358 KB/s 57363 KB/s 81 12.225
WD RE4 1000GB 138 MB/s 137 MB/s 141690 KB/s 99667 KB/s 55828 KB/s 83 12.039
WD RE4 2000GB 150 MB/s 149 MB/s 134773 KB/s 110990 KB/s 61113 KB/s 86 11.628
WD VelociRaptor 150GB 127 MB/s ? 94189 KB/s 76688 KB/s 40053 KB/s 135 7.398
WD VelociRaptor 300GB 125 MB/s 124 MB/s 130603 KB/s 95169 KB/s 52749 KB/s 141 7.051
WD VelociRaptor 500GB 192 MB/s 192 MB/s 183733 KB/s 138059 KB/s 75375 KB/s 142 6.996 16214 345 15518 393
WD VelociRaptor 1 TB 201 MB/s 210 MB/s 196387 KB/s 139418 KB/s 82770 KB/s 147 6.800
Intel SSD 520 120GB S 415 MB/s 516 MB/s 409311 KB/s 465053 KB/s 211663 KB/s 9022 0.111 16300 31361 35594
Intel SSD 520 120GB W 349 MB/s 392 MB/s 364438 KB/s 30704 19735
Intel SSD DC S3500 120GB S 242 MB/s 137 MB/s 317315 KB/s 126170 KB/s 84854 KB/s 20011 0.050 25507 50564 22346 34037
Intel SSD DC S3500 120GB T 220 MB/s 136 MB/s 319899 KB/s 124705 KB/s 83916 KB/s 7943 0.126 25954 50398 22278 33510
Samsung SSD 830 128GB S 275 MB/s ? ? ? ? ? ? 15021 63325
Samsung SSD 830 128GB S 251 MB/s 310 MB/s 448005 KB/s 306406 KB/s 156598 KB/s 8776 0.114 24673 75082 21613 33513
Samsung SSD 830 128GB W ? ? ? ? ? ? ? 24693 75895 21700 12116
Samsung SSD 840 Basic 120GB S 364 MB/s 193 MB/s 563364 KB/s 133098 KB/s 105456 KB/s 15153 0.066 28480 81232 25129 34199
Samsung SSD 840 Basic 120GB W 335 MB/s 134 MB/s 563119 KB/s 134405 KB/s 103835 KB/s 7062 0.142 28529 75975 24715 34121
Samsung SSD 840 Pro 128GB S 388 MB/s 347 MB/s 535899 KB/s 332066 KB/s 206926 KB/s 15518 0.064 24557 66560 20142 63714
Samsung SSD 840 Pro 128GB W 358 MB/s 34 MB/s 529556 KB/s 46292 KB/s 128409 KB/s 8282 0.121 19540 66815 20108 25198
Samsung SSD 840 Pro 256GB S 328 MB/s 424 MB/s 306324 KB/s 13955 0.072 18878 68293 17440 58209
Samsung SSD 840 Pro 256GB W 309 MB/s 296 MB/s 314517 KB/s 7567 0.132 17041 68007 17778 46524
Samsung SSD 840 Pro 256GB S 321 MB/s 427 MB/s 295827 KB/s 13617 0.073 18876 68649 17171 58902
Samsung SSD 840 Pro 256GB T 320 MB/s 303 MB/s 320866 KB/s 7342 0.136 16621 68292 17241 46591
Samsung SSD 840 EVO 250GB S 317 MB/s 273 MB/s 467442 KB/s 222690 KB/s 168794 KB/s 15232 0.066 19469 65423 18340 58939
Samsung SSD 840 EVO 250GB T 305 MB/s 246 MB/s 494841 KB/s 43245 KB/s 154574 KB/s 7242 0.138 19177 64608 18143 51336
Samsung SSD 850 Pro 256GB S 535 MB/s 550 MB/s 537897 KB/s 513764 KB/s 243285 KB/s 21601 0.046 34161 77799 30893 76367
Samsung SSD 850 Pro 256GB T 548 MB/s 149 MB/s 537853 KB/s 420025 KB/s 239609 KB/s 9731 0.103 33964 77550 30718 49142
Samsung SSD 850 Pro 512GB S 549 MB/s 528 MB/s 533737 KB/s 497780 KB/s 251166 KB/s 29098 0.034 47111 98323 32676 85651
Samsung SSD 850 Pro 512GB T 548 MB/s 170 MB/s 534232 KB/s 340670 KB/s 238667 KB/s 10336 0.097 46922 98327 32658 82096
Samsung SSD 850 Pro 1TB S 549 MB/s 526 MB/s 533500 KB/s 493238 KB/s 250077 KB/s 30802 0.032 47152 98336 33297 84063
Samsung SSD 850 Pro 1TB T 549 MB/s 521 MB/s 533597 KB/s 409222 KB/s 242075 KB/s 10309 0.097 47026 98330 32736 84081
OCZ Agility 3 240GB 205 MB/s ? ? ? ? ? ? 9546 35649
OCZ Vertex 450 128GB S 386 MB/s 283 MB/s 416083 KB/s 274602 KB/s 146763 KB/s 11503 0.087 9521 68617 16776 57761
OCZ Vertex 450 128GB T 448 MB/s 66 MB/s 431143 KB/s 146962 KB/s 114158 KB/s 5511 0.181 12113 64449 16515 28111

Benchmark script: mhbs.sh

  • S (Stock) = Disk in manufactored stock state
  • W (Written Once) = Disk written once completely with random data for worst-case wear leveling
  • T (Written Twice) = Disk written twice completely with random data for worst-case wear leveling, including all spare blocks exhausted of manufacture's over-provisioning