CrystalDiskMark

CrystalDiskMark is an open source disk drive benchmark tool for Microsoft Windows. Based on Microsoft's MIT-licensed Diskspd tool,[2] this graphical benchmark is commonly used for testing the performance of solid-state storage.[3][4] It works by reading and writing through the filesystem in a volume-dependent way. It generates read/write speeds in sequential and random positions with varying numbers of queues and threads.[5] Solid-state drives tend to excel at random IO, as unlike hard drives it does not need to seek for the specific position to read from or write to.[6]

CrystalDiskMark
CrystalDiskMark 5.1.2 testing a Solid State Drive
Developer(s)Noriyuki Miyazaki
Initial releaseJanuary 31, 2007 (2007-01-31) (BSD 3-Clause)
Stable release
8.0.1[1] / January 12, 2021 (2021-01-12)
Written inC++
Operating systemMicrosoft Windows
Size4.0 MiB (zip)
Available in44 languages
List of languages
English, Japanese, Russian, Chinese, etc.
LicenseMIT license
Websitecrystalmark.info/en/

There is a macOS clone version of it called AmorphousDiskMark developed by Katsura Shareware, named after the non-crystalline amorphous state of solids.[7]

CrystalDiskInfo
CrystalDiskInfo
Developer(s)Noriyuki Miyazaki
Initial releaseMay 22, 2008 (2008-05-22) (BSD 3-Clause)
Stable release
8.10.0[8] / January 23, 2021 (2021-01-23)
Written inC++
Operating systemMicrosoft Windows
Size6.4 MiB (zip)
Available in44 languages
List of languages
English, Japanese, Russian, Chinese, etc.
LicenseMIT license
Websitecrystalmark.info/en/

CrystalDiskInfo is an MIT-licensed S.M.A.R.T. utility for reading and monitoring disk drive status. Like CrystalDiskMark, this tool is designed with an emphasis around solid state devices, supporting NVMe connections in addition to the usual PATA and SATA. Other feature include Intel RAID support, e-mail and sound warnings, and AAM/APM adjustment.[9]

Mascot

The developer website for CrystalDiskMark, Crystal Dew World, features prominently an anime mascot called Suisho Shizuku (Japanese: 水晶雫). She was introduced in the March 2012 update through a special skin for CrystalDiskMark 3.0.2.[10] As of CrystalDiskInfo 7, she is voiced in Japanese in the special version.[11]

See also

References
  1. "History". Crystal Dew World [en]. Retrieved 2021-01-12.
  2. "CrystalDiskMark". Crystal Dew World [en]. Retrieved 6 April 2019. CrystalDiskMark 4-6 uses Microsoft DiskSpd (The MIT License).
  3. "Adata XPG SX8200 Pro NVMe SSD review: Top-tier performance for a song". PCWorld. 14 December 2018. Retrieved 6 April 2019.
  4. "Microsoft Surface Go with 64GB eMMC storage – How much slower is the $399 model?". Windows Central. 2 August 2018. Retrieved 6 April 2019.
  5. "Main Window". Crystal Dew World [en]. Retrieved 6 April 2019.
  6. "Understanding Solid State Drives (part two – performance)" (PDF). HP. 2008-10-27. Retrieved 2011-07-06.
  7. "AmorphousDiskMark for macOS - measures storage read/write performance". katsurashareware. Retrieved 6 April 2019.
  8. "History". Crystal Dew World [en]. Retrieved 2021-01-23.
  9. "CrystalDiskInfo". Crystal Dew World. Retrieved 6 April 2019.
  10. CrystalDiskMark 3.0.2 Shizuku Edition Crystal Dew Blog
  11. "CrystalDiskInfo 7 Shizuku Edition". suishoshizuku. Retrieved 6 April 2019. She can speak Japanese only.
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