WD10SPZX買ったからSMRのテストしてみたいんだけど
どうやったらいいんだろう？

とりあえずCDM5.5でテストした

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CrystalDiskMark 5.5.0 x64 (C) 2007-2017 hiyohiyo
Crystal Dew World : http://crystalmark.info/
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* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 127.064 MB/s
Sequential Write (Q= 32,T= 1) : 118.500 MB/s
Random Read 4KiB (Q= 32,T= 1) : 1.179 MB/s [ 287.8 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 13.661 MB/s [ 3335.2 IOPS]
Sequential Read (T= 1) : 126.867 MB/s
Sequential Write (T= 1) : 120.372 MB/s
Random Read 4KiB (Q= 1,T= 1) : 0.458 MB/s [ 111.8 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 10.986 MB/s [ 2682.1 IOPS]

Test : 1024 MiB [G: 0.0% (0.2/931.4 GiB)] (x5) [Interval=5 sec]
Date : 2017/11/07 19:15:31
OS : Windows 10 Professional [10.0 Build 15063] (x64)