CrystalDiskMark is an

open source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

disk drive

benchmark Benchmark may refer to: Business and economics * Benchmarking, evaluating performance within organizations * Benchmark price * Benchmark (crude oil), oil-specific practices Science and technology * Experimental benchmarking, the act of defining a ...

tool for Microsoft Windows from Crystal Dew World. Based on Microsoft's MIT-licensed Diskspd tool, this graphical benchmark is commonly used for testing the performance of

solid-state storage Solid-state storage (SSS) is non-volatile computer storage that has no moving parts; it uses only electronic circuits. This solid-state design dramatically differs from the commonly-used competing technology of electromechanical magnetic storage ...

. 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. Solid-state drives tend to excel at random IO, as unlike

hard drive A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating hard disk drive platter, pla ...

s, they do not need to

seek SEEK Limited is an Australian employment website for job listings, headquartered in Melbourne, Victoria. Seek also operates in China, Hong Kong, Indonesia, Malaysia, New Zealand, Philippines, Singapore and Thailand. History Seek was founded ...

for the specific position to read from or write to. There is a

macOS macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...

clone version of it called AmorphousDiskMark developed by Katsura Shareware, named after the non-crystalline amorphous state of solids.

CrystalDiskInfo

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 NVM Express (NVMe) or Non-Volatile Memory Host Controller Interface Specification (NVMHCIS) is an open, logical-device interface specification for accessing a computer's non-volatile storage media usually attached via the PCI Express bus. The in ...

connections in addition to the usual PATA and

SATA SATA (Serial AT Attachment) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives. Serial ATA succeeded the earlier Parallel ATA (PATA) standard ...

. Other features include Intel RAID support, e-mail and sound warnings, and AAM/APM adjustment.

AmorphousDiskMark

It is a port of CrystalDiskMark for Mac OS X, published by Katsura Shareware, developed by Twitter user polydron.

AmorphousMemoryMark

It is a memory benchmarking programme for Mac OS X that uses CrystalDiskMark's user interface.

Marketing

Suisho Shizuku

Suisho Shizuku (), illustrated by Kirino Kasumu () of Hermit Penguin, produced by Bellche Tachibana (), and voiced by

Hiromi Igarashi is a Japanese voice actress from Sapporo, Hokkaido. She is affiliated with Mausu Promotion. Her major roles are Anzu Futaba in the Japanese idol franchise ''The Idolmaster Cinderella Girls''; Hina Takanashi, the youngest daughter in '' Listen ...

Mausu Promotion , formerly known as Ezaki Productions, is a Japanese talent management agency representing a number of prolific voice actors. Attached voice actors Male * Shinya Fukumatsu * Kenji Hamada * Mitsuhiro Ichiki * Atsushi Imaruoka * Kentarō It ...

, is ''Crystal Dew Worlds first mascot, introduced in CrystalDiskMark 3.0.2 in 2012-10-26 as separate release. The character's own website was announced in 2014-01-10. The character's Twitter account was opened in December 2013 Japan time, but was only announced in 2014-08-28. As of CrystalDiskInfo 7, she is voiced in Japanese in the special version. Shikuku editions of other Crystal Dew World software include CrystalDiskInfo since 5.0.0 (2012-06-16). Suisho Shizuku also has a crossover with Foxkonkochan (ふぉっくす紺子ちゃん), a

Foxconn Hon Hai Precision Industry Co., Ltd. (), Trade name, doing business as Hon Hai Technology Group () in Taiwan, Foxconn Technology Group () in China, and Foxconn () internationally, is a Taiwanese multinational corporation, multinational electron ...

mascot originally for authorized Foxconn Japanese dealer unistar, Inc. (later Mediabank Corp (メディアバンク株式会社)) announced by the company in 2014-02-25) designed by Nakano Tsukasa (永野つかさ) of e.l.fields, where both characters appear in a postcard that were included with purchases at selected stores in 2015-12-12.

Kurei Kei/Pronama-chan

Kurei Kei ()/Pronama-chan (), a Pronama LLC mascot designed by Ixy（いくしー） (''Nareru! Systems Engineer'' illustrator), and voiced by

Sumire Uesaka is a Japanese voice actress and singer associated with Voice Kit. She won the Best Rookie Actress at the 10th Seiyu Awards. She made her singing debut in April 2013 under King Records. Career Uesaka became a regular on the web radio program ' ...

of KING RECORD CO., LTD., was the second mascot used in Crystal Dew World's software, introduced in CrystalDiskInfo 7.1.0 (2017-08-04). As part of CrystalDiskInfo Kurei Kei Edition premiere launch, CrystalDiskInfo Kurei Kei Edition x OLIOSPEC B2-sized posters were given away with purchases at OLIOSPEC in 2017-08-04, with a CrystalDiskInfo Kurei Kei Edition theme images contest taking place between 2017-08-04 and 2017-10-01. The contest's Ultimate prize was won by Kohaku Muro ().

Tsukumo Tokka

Virtual salesperson android Tsukumo Tokka (), a Virtual Cast Shopping () (Project White Co., Ltd.'s online channel) mascot designed by ?, was the third mascot used in Crystal Dew World's software, introduced in CrystalDiskMark 8.0.2 (2020-06-01).

Suisho Aoi

Suisho Aoi mascot was introduced in CrystalDiskInfo 9.2.0, to celebrate Crystal Dew World's 25th anniversary.

References

{{reflist Hard disk software Free software programmed in C++ Windows-only free software