最近上闲鱼买了个 PNY usb3.0 的 U 盘 64G.那我一直怀疑它可能是假的，但又看不出哪有问题，毕竟 PNY 读写速率并不快。然后它显示容量只有 61.93G 实测有 57.6G ，有点奇怪...很纠结，想请 V 友给个意见！ 读写如下：----------------------------------------------------------------------- CrystalDiskMark 6.0.1 x64 (C) 2007-2018 hiyohiyo Crystal Dew World : https://crystalmark.info/
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MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
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KB = 1000 bytes, KiB = 1024 bytes
Sequential Read (Q= 32,T= 1) : 33.818 MB/s Sequential Write (Q= 32,T= 1) : 25.296 MB/s Random Read 4KiB (Q= 8,T= 8) : 7.417 MB/s [ 1810.8 IOPS] Random Write 4KiB (Q= 8,T= 8) : 0.024 MB/s [ 5.9 IOPS] Random Read 4KiB (Q= 32,T= 1) : 7.453 MB/s [ 1819.6 IOPS] Random Write 4KiB (Q= 32,T= 1) : 0.025 MB/s [ 6.1 IOPS] Random Read 4KiB (Q= 1,T= 1) : 6.241 MB/s [ 1523.7 IOPS] Random Write 4KiB (Q= 1,T= 1) : 0.036 MB/s [ 8.8 IOPS]
Test : 1024 MiB [] (x5) [Interval=5 sec] Date : 2018/10/29 11:25:27 OS : Windows 7 Ultimate SP1 [6.1 Build 7601] (x64)
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