芝麻信用评估
读取80+M/s 写入70+M/s，虽然有点儿慢，大文件应该凑合了，
刚用办公室2个旧电脑测了下，如果达不到这个速度，应该是其他硬件或系统问题，
台式机：
Sequential Read (Q= 32,T= 1) : 80.794 MB/s
Sequential Write (Q= 32,T= 1) : 74.415 MB/s
Random Read 4KiB (Q= 32,T= 1) : 0.324 MB/s [ 79.1 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 0.594 MB/s [ 145.0 IOPS]
Sequential Read (T= 1) : 79.270 MB/s
Sequential Write (T= 1) : 74.454 MB/s
Random Read 4KiB (Q= 1,T= 1) : 0.315 MB/s [ 76.9 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 1.258 MB/s [ 307.1 IOPS]
本子：
Sequential Read (Q= 32,T= 1) : 81.081 MB/s
Sequential Write (Q= 32,T= 1) : 78.221 MB/s
Random Read 4KiB (Q= 32,T= 1) : 0.337 MB/s [ 82.3 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 1.177 MB/s [ 287.4 IOPS]
Sequential Read (T= 1) : 79.273 MB/s
Sequential Write (T= 1) : 79.476 MB/s
Random Read 4KiB (Q= 1,T= 1) : 0.328 MB/s [ 80.1 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 1.315 MB/s [ 321.0 IOPS]
你凭什么教做人 
亚马逊prima 蓝4T 811.00 一周达，京东899.00算良心价了，很好用
