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# BogoMips mini-Howto

## Wim van Dorst, WvD@clifton.nl

v33, 2002-04-07

This text gives some information about BogoMips, compiled from various sources such as news and e-mail. This text, initially started back in 1993 as BogoMips Information Sheet, is retrievable in the most up-to-date version from its homepage at www.clifton.nl, and from the various Linux archives in the file .../HOWTO/mini/BogoMips. Translations are reported to be available in Chinese, French, German, Hungarian, Indonesian, Italian, Japanese, Norwegian, Polish, Portuguese, Spanish, and Slovak from appropriate archives. An explanatory article, titled 'the Quintessential Linux Benchmark,' was published in the Linux Journal, vol 21, January 1996. The BogoMips is also explained in The Jargon File. New mini-Howto entries for unlisted CPUs will be highly appreciated. They can be send per e-mail to the author.

## 1. Lowest and highest BogoMips ratings

- 1.1 The lowest Linux boot sequence BogoMips value
- 1.2 The highest single-CPU Linux boot sequence BogoMips value
- 1.3 The highest multiple-CPU Linux boot sequence BogoMips value
- 1.4 The highest non-Linux BogoMips value

## 2. The frequently asked questions about BogoMips

- 2.1 What are BogoMips
- 2.2 How to estimate what the proper BogoMips rating should be
- 2.3 How to determine what the current BogoMips rating is
- 2.4 Variations in BogoMips rating
- 2.5 New BogoMips algorithm?
- 2.6 BogoMips ... failed
- 2.7 What about clone CPUs (Cyrix, NexGen, AMD, etc)
- 2.8 Why to pay attention to BogoMips

## 3. Compilation of ratings

- 3.1 386 systems: SX, DX, Nexgen
- 3.2 Oddly or faultily configured 386 systems
- 3.3 486 systems
- 3.4 Oddly or faultily configured 486 systems
- 3.5 486 variations: Cyrix/IBM, UMC
- 3.6 Pentium systems
- 3.7 Oddly or faultily configured Pentium systems
- 3.8 Pentium variations: Intel (MMX, Pro, II, Celeron, III, 4)
- 3.9 Pentium variations: Cyrix, AMD (K5/K6/K7, Duron, Athlon), Centaur
- 3.10 Alpha systems
- 3.11 Motorola systems
- 3.12 Sparc systems
- 3.13 PowerPC systems
- 3.14 Other CPU systems: Mips, Intel 8088/286 ELKS, IBM, Crusoe
- 3.15 Multi-CPU systems
- 3.16 Non-Linux systems (reference only)

## 4. Signature

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