BogoMips mini-Howto Wim C.A. van Dorst 1996-11-07 This text gives a little information about BogoMips, compiled from various sources by news and mail. This text is retrievable from the various Linux archives in ~linux/docs/HOWTO/mini/BogoMips. An article was published in the Linux Journal, issue January 1996 The Lowest Linux BogoMips: Tim Van der Linden Intel 8088/4.77 0.02 BogoMips The Highest Linux BogoMips: Bernd Meyer Alpha PC164 21164/433 429.91 BogoMips ------------------------------------------------------------------------------ Contents of this mini-HOWTO: 1. What are BogoMips 2. How to estimate what the proper BogoMips rating should be 3. How to determine what the current BogoMips rating is 4. Variations in BogoMips rating 5. BogoMips ... failed 6. What about clone CPUs (Cyrix, NexGen, AMD, etc) 7. Why to pay attention to BogoMips 8. Compilation of ratings A. Oddly or faultly configured 386 systems B. Normal 386 systems: SX, DX, NexGen C. Oddly or faultly configured 486 systems D. Normal 486 systems E. Normal 486 varations: Cyrix/IBM, UMC F. Oddly or faultly configured Pentium systems, or variations G. Normal Pentium systems H. Normal Pentium variations: SMP, PPro, Cyrix, AMD I. Normal Alpha systems J. Normal Motorola systems K. Other systems: Sparc, PowerPC, Mips, Intel 8088 L. Non-Linux systems (reference only) ------------------------------------------------------------------------------ 1. What are BogoMips From Lars Wirzenius' mail of 9 September 1993, explaining Bogomips, with additional detailed information by Wim van Dorst: `MIPS is short for Millions of Instructions Per Second. It is a measure for the computation speed of a program. Like most such measures, it is more often abused than used properly (it is very difficult to justly compare MIPS for different kinds of computers). BogoMips are Linus's invention. The kernel (or was it a device driver?) needs a timing loop (the time is too short and/or needs to be too exact for a non-busy-loop method of waiting), which must be calibrated to the processor speed of the machine. Hence, the kernel measures at boot time how fast a certain kind of busy loop runs on a computer. "Bogo" comes from "bogus", i.e, something which is a fake. Hence, the BogoMips value gives some indication of the processor speed, but it is way too unscientific to be called anything but BogoMips. The reasons (there are two) it is printed during bootup is that a) it is slightly useful for debugging and for checking that the computers caches and turbo button work, and b) Linus loves to chuckle when he sees confused people on the news.' BogoMips are being determined in /usr/src/linux/init/main.c (simple C algorithm), and the pertaining kernel variable loops_per_sec is used in various drivers of the net, scsi, and char sections. The actual delay functions are in assembler, and therefore each port has their own in include/asm/delay.h. This loops_per_sec variable is used in various drivers for char, net, and scsi devices (see `find /usr/src/linux -name '*.[hcS] -print -exec fgrep loops_per_sec {} \;`) ------------------------------------------------------------------------------ 2. How to estimate what the proper BogoMips rating should be From a initiative by Ian Jackson and Przemek Klosowski, much updated and expanded by Wim van Dorst for current data, as listed below: As a very approximate guide, the BogoMips can be calculated by: System BogoMips Comparison Intel 8088 clock * (0.004 plusminus 0.001) 0.02 Intel/AMD 386SX clock * (0.14 plusminus 0.01) 0.8 Intel/AMD 386DX clock * (0.18 plusminus 0.01) 1 (definition) Motorola 68030 clock * (0.25 plusminus 0.005) 1.4 Cyrix/IBM 486 clock * (0.34 plusminus 0.065) 1.8 Intel Pentium clock * (0.40 plusminus 0.035) 2.2 Intel 486/AMD 5x86 clock * (0.50 plusminus 0.01) 2.8 Mips R4000/R4400 clock * (0.50 plusminus 0.015) 2.3 Nexgen Nx586 clock * (0.75 plusminus 0.010) 4.2 PowerPC 601 clock * (0.84 plusminus 0.015) 4.7 Alpha (all) clock * (0.99 plusminus 0.005) 5.5 Intel Pentium Pro clock * (0.99 plusminus 0.005) 5.5 Cyrix 5x86/6x86 clock * (1.00 plusminus 0.005) 5.6 Mips R4600 clock * (1.00) 5.6 AMD 5k86 clock * (2.00 plusminus 0.010) 11.1 Motorola 68060 clock * (2.01) 11.2 Motorola 68040 (insufficient data yet) Sparc (insufficient data yet) Note that the BogoMips calculation loop does not take advantage of the parallelism of various processors, such as the Intel Pentium and the Alpha 21164. Note that the BogoMips calculation loop for the non-Intel CPUs is similar but not the same. ------------------------------------------------------------------------------ 3. How to determine what the current BogoMips rating is There are three methods to determing the current BogoMips, viz. a. looking in /proc/cpuinfo, e.g., with 'cat /proc/cpuinfo'. b. looking in the syslog output to see what was printed there during booting (if necessary retrieving the information explicitly with dmesg or syslogk) or c. using the standalone bogomips program. From the readme file of the standalone BogoMips program by Jeff Tranter : `Tired of rebooting your system so you can see how many BogoMIPS it's running at today? [...] "Bogomips" is a standalone program that displays your system performance using one of the world's most recognized benchmarks. It uses the same code that is used in the Linux kernel while booting, but runs as a user program. [...] Version 1.3 of BogoMIPs is now portable and should run on any system that supports an ANSI C compiler and library.' Note that due to system load values calculated with the standalone program may be lower than registered in the list below. Intrinsically the standalone cannot give precisely similar information to the boot sequence BogoMips, since system load will compete with this program run by an ordinary user. Note that version 1.2 of the standalone is the latest, but rather outdated. ------------------------------------------------------------------------------ 4. Variations in BogoMips rating From Linus Torvalds , explaining about the variation one may see in the BogoMips rating, in c.o.l.development, at 28 April 1994 `The BogoMips calculation loop is "quantizised", so you're most likely to get the exact same number all the time. You usually will get different numbers only if the speed is just on the "edge", when small variations (different time for interrupt ticks etc) will make it jump from one value to the other.' ------------------------------------------------------------------------------ 5. BogoMips ... failed Suggested by various questions on the net and private mail, e.g. by Lily and by Pierre Frenkiel . In March 1995 they asked: `When I boot Linux I get the message: Calibrating delay loop.. ok - 23.96 BogoMips failed Where/why has the calibration delay loop failed?' It didn't fail. If it had failed the text would have been Calibrating delay loop.. failed What likely did fail was a driver for some gadget which you may not have in your machine. Just after calculating the BogoMips rating all device drivers are initiated. First the SCSI devices, then Net devices, etc. Any failure is duly reported. Noteworthy is the AHA152x driver. Other effects of failing drivers (and not of failing BogoMips calculations) are systems crashes, long waits, and complete system locks. Since Linux 1.2 many error messages have improved, so upgrade to at least that version to find out which particular driver it is that is failing. ------------------------------------------------------------------------------ 6. What about clone CPUs (Cyrix, NexGen, AMD, etc) Cyrix 486-like CPUs need cache enabling software, sometimes referred to as BogoBoost software. Cyrix 5x86 and 6x86 CPUs may have their BogoMips improved drastically by branch-prediction (BIOS option). Note that the performance improvement may be marginal. There are several packages available for adjusting Cyrix CPUs, such as the bogoboost patch, cx5x86mod, and set6x86, all from the normal archives, in obvious places. It is reported the Cyrix 6x86 CPUs may give better performance when the kernel is compiled with 486-optimization, instead Pentium-optimization. NexGen 386-enhanced CPUs, marked as Nx586, are listed as 386-like, since the fact that they are performing like Pentium machines is not relevant to BogoMips. AMD 5x86, also denoted as AMD 486DX5, are quadrupled 486/33 machines. They are fully in line with other 486 CPUs. The AMD 5k86 is a Pentium like CPU, with their own BogoMips multiplier. ------------------------------------------------------------------------------ 7. Why to pay attention to BogoMips Let me add that there are only two reasons for paying attention to the BogoMips rating that is presented on booting Linux: 1. To see whether it is in the proper range for the particular processor, its clock frequency, and the potentially present cache. Many CPUs are prone to faulty setups of - memory cache setting (write-back is wrong for BogoMips, write-through is ok) - turbo-buttons (should be ON) - BIOS-software emulated fake cache (change it for real cache) - similar cache and clock related things. 2. To see whether your system is faster than mine. Of course this is completely wrong, unreliable, ill-founded, and utterly useless, but all benchmarks suffer from this same problem. So why not use it? This inherent stupidity has never before stopped people from using benchmarks, has it? :-) ------------------------------------------------------------------------------ 8. Compilation of ratings The following table gives some reported BogoMips ratings for various systems. Note that the ratings here are from the Linux actual booting sequence, except of course for the section on Non-Linux Systems. A. Oddly or faultly configured 386 systems System BogoMips Reporter 386DX/16 387 nocache 0.57 H. Peter Anvin 386DX/25 0.82 P Wright 386DX/25 nocache 1.03 Mark A. Horton 386SX/16 1.5 Stefan Kromer 386SX/16 1.6 Bill Davidsen 386SX/20 1.87 Paul C. Dulany 386DX/25(?) 128c 6.03 Chuck Meo 386DX/20 13 Ed Runnion B. Normal 386 systems: SX, DX, Nexgen System BogoMips Reporter 386SX/16 1.99 James Vahn 386SX/16 Packard Bell 2.05 386SX/16 2.09 David E. Fox 386SX/16 2.15 W Stevens 386SX/16 2.2 Lech Marcinkowski 386SX/16 2.23 Andrew Bulhak 386SX/16 2.23 Steven M. Gallo 386SX/16 2.34 Kevin Burtch 386SX/16 turbo 2.38 Andrew Haylett 386SX/16 0c 2.43 Adam Clarke 386SX/16 2.49 Waymon 386SX/20 2.7 Alex Strasheim 386SX/20 2.70 J.L. Brothers 386SXL/25 AMD 2.9 Vaughan R. Pratt 386SX/25 AMD 0c 3.06 K.J. MacDonald 386SX/25 AMD 3.38 Hamish Coleman 386SX/25 0c 3.52 Rogier Wolff 386SL/25 Intel 3.57 S Harris 386SX/25 AMD 3.62 S Harris 386SXL/25 AMD 0c 3.71 David E.A. Wilson 386SX/33 Intel 4.06 Kenneth J. Hoover 386SX/33 4.71 Alexander Komlik 386SX/40 Intel 0c 6.03 Michael Kenyon 386DX/16 2.49 Mike 386DX/20 Intel 3.0 Malcolm Reeves 386DX/20 Intel 3.08 Si. Harris 386DX/20 Nec Powermate 3.22 David J Dawkins 386DX/20 Micronics 3.25 M Haardt 386DX/20 3.67 Joost Helberg 386DX/25 3.91 Ian McCloghrie 386DX/25 3.95 Grant Edwards 386DX/25 0cache 3.96 J.O. Williams 386DX/25 32cache 4.53 J.M.A. Lahtinen 386DX/33 5.86 Tim Lacy 386DX/33 64cache 5.99 Lars Wirzenius 386DX/33 Intel 5.99 Harri Pasanen 386DX/33 no387 6.03 Joel B.Levin 386DX/33 387 6.03 Peter Bechtold 386DX/40 6.21 J.L. Brothers 386DX/33 6.46 Dennis Robinson 386DX/33 6.5 Dean Nelson 386DX/33 387 256cache 6.65 Wim van Dorst 386DX/33 6.65 Rick Lim 386DX/33 6.7 Craig Hagan 386DX/40 6.99 Ken Wilcox 386DX/40 AMD 7.76 Joe Phillips 386DX/40 AMD 7.10 Kerry Person 386DX/40 7.10 D. Bikram Singh 386DX/40 128cache 7.23 Julian Francis Day 386DX/40 bogoboosted 7.23 Pat St Jean 386DX/40 AMD 128cache 7.23 R.Bergs 386DX/40 slow DRAM 7.26 John Lockwood 386DX/40 128c 7.29 Karsten Friese 386DX/40 7.29 E.C. Garrison 386DX/40 7.29 Darin Cowan 386DX/40 7.29 Bonne van Dijk 386DX/40 AMD 7.76 Todd Lindner 386DX/40 7.76 Bear Giles 386DX/40 AMD 387 64c 7.91 386DX/40 7.98 Frank Pilhofer 386DX/40 64c 7.98 Dean Junk 386DX/40 AMD 32c 7.98 Tommy Olsen 386DX/40 AMD 7.98 James Reith 386DX/40 7.98 Aaron T. Baldie 386DX/40 128c 7.98 John Pate 386DX/40 7.98 Christian Nelson 386DX/40 7.98 Alan Peckham 386DX/40 8.06 Michael Guslick 386DX/40 8.06 Richard Brown 386DX/40 8.06 Bill G. Bohling Nx586/90 NexGen 67.44 Nx586/90 NexGen 67.44 Robert Gehring Nx586/90 NexGen 67.48 David G. Eckard Nx586/100 NexGen 74.34 Cameron L. Spitzer Nx586/100 NexGen 256c 74.56 Marius Groenendijk Nx586/110 NexGen 256c 81.51 Michael J. Micek Nx586/110 NexGen 81.51 Ron Marsh C. Oddly or faultly configured 486 systems System BogoMips Reporter 486DX/33 0c 1.45 Mark Gray 486SL/25 0c 1.95 Paraskevas Evripidou 486DLC/40 0c 2.45 S.Schendel 486DX/33 128c 2.94 P.J. Nefkens 486DX4/120 AMD 3.04 Andrew Steinbach 486DX5/133 AMD 3.05 Eric Hagen 486DX4/100 Cyrix 3.06 Stuart Harvey 486DX5/133 AMD 3.06 Charles Galpin 486DX4/100 3.06 Bear Giles 486DX2/80 3.08 Gerald E. Butler 486DX4/120 AMD 3.08 Charles Hines 486DX4/66 256c 3.10 Riccardo Capella 486DX4/100 wb-cache 3.10 Paul Close 486DX4/120 3.13 Brian Perkins 486DX4/120 AMD 3.15 486DX4/100 3.17 Thomas Sudbrak 486SLC2/50 Cyrix 3.30 Colin J. Wynne 486DX/33 3.61 Marten van de Laan 486DX/33 noturbo 3.61 Dimitris Evmorfopoulos 486DX4/120 3.74 Brian Wheeler 486DX4/120 AMD 3.74 Frank Pilhofer 486DX4/100 Cyrix 256c 4 Joel Kelso 486DX/33 256c noturbo 4.25 Wouter Liefting 486DX/33 4.66 Mark Gray 486Rx2 Cyrix 25/50 4.85 486SX/33 noturbo 5.21 Scott D. Heavner 486DX2/66 overdrive 5.37 Jeremy Orr 486DX/33 5.66 Ryan Tucker 486DX2/66 5.88 P.J. Nefkens 486DX4/100 5.94 Howard Goldstein 486DX4/100 AMD 5.94 Mr Pink 486DX4/100 notebook 6.55 Thomas 486DX4/100 notebook 6.55 Hugh McCurdy 486SLC Cyrix 7 Pieter Verhaeghe 486SX/33 7.84 Paul Hedderly 486DLC/40 7.98 Wil Cromer 486DX4/100 11.11 NN 486DX4/100 11.3 Earl Gooch 486/66 Cyrix 13.02 Mike Baptiste 486SLC2/25 14.6 Vaughan R. Pratt 486DX2/66 laptop 14.46 Robert Knop 486SLC2/66 18.94 486DX/33 turbo 19.98 C Vetter 486DX4/75 21.5 Theo Scott 486DX4/75 24.13 Sherman Hsieh 486DX2/58 26.3 Vassili Leonov 486DX4/100 overclock 28.67 Theo Scott 486DX2/80 36 Mark Lee 486DX2/80 50.08 Mark Lee 486DX4/100 60 Sebastien Dedieu 486DX2/100 overclock 60.45 Tony D Shan 486DX5/133 AMD 75.40 Jeff Hyche 486DX5/133 AMD 80.08 NN 486DX5/133 AMD 87 John Wiggins D. Normal 486 systems System BogoMips Reporter 486SX/20 DECpc 9.98 Thomas Pfau 486SX/25 12.24 M. Buchenrieder 486SX/25 12.3 Darren McKay 486SX/25 12.42 Mark R. Lindsey 486DX/25 12.5 Phillip Hardy 486SX/25 12.52 Emmanual Emore 486DX/33 256c 16.33 Eric Kemminan 486DX/33 16.35 Christopher L. Morrow 486DX/33 16.43 Rob Janssen 486DX/33 64cache 16.44 H. Peter Anvin 486DX/33 256c DIY 16.44 Wouter Liefting 486DX/33 Intel 128c 16.44 Rafal Kustra 486DX/33 16.5 Alex Freed 486DX/33 16.6 Vaughan R. Pratt 486DX/33 noturbo 16.61 C Vetter 486DX/33 16.61 Jeffrey L. Newbern 486DX/33 16.61 Giuseppe De Marco 486DX/33 16.61 M Heuler 486DX/33 16.61 Frank Lofaro 486DX/33 16.77 Donald Lewis 486DX/33 16.77 Stephan Boettcher 486DX/33 256c 16.77 David Manchester 486DX/40 19.8 Jose Calhariz 486DX/40 19.91 M Heuler 486DX/40 19.96 David A. Ranch 486DX/40 AMD 19.97 M Haardt 486DX/40 Intel 19.97 Paul van Spronsen 486DX/40 19.97 Ulf Tietz 486DX/40 19.97 486DX/40 19.97 Zoltan Lajber 486DX/40 19.97 Wim van Dorst 486DX/40 AMD 20 Chuck Munro 486DX/40 AMD 20.09 Pieter Eendebak 486DX/50 24.48 Arnd Gehrmann 486DX/50 AMD 24.85 Klaas Hemstra 486DX/50 DTK 24.85 Randolph Christophers 486DX/50 24.85 Kevin Lentin 486DX2/50 24.85 Jason Matthew 486DX2/50 24.85 Gregory P. Smith 486DX/50 VLB 24.97 Tom Miller 486DX/50 24.99 Jeff 486DX/50 Intel 256c 24.99 Mike 486DX/50 25 Robert Herzog 486DX2/50 25 M. Abrahamsson 486DX2/50 25.0 Christian Holtje 486DX2/50 DECpc 25.04 Thomas Pfau 486DX2/50 Eisa 25.04 John Willing 486DX2/50 256c 25.04 Zhou Yanmo 486DX/50 25.04 Michael Kress 486DX2/50 25.04 Mats Wikholm 486DX2/50 25.04 Jean C Delepine 486DX/50 25.04 Jean C Delepine 486DX/50 25.04 Kevin Burtch 486DX/50 notebook 25.04 Pierre Frenkiel 486DX/50 25.10 M Heuler 486DX2/50 25.4 Brian Kennedy 486DX2/66 32 Lee Sau Dan 486DX2/66 32.9 Frederick 486DX2/66 33 Alec Muffett 486DX2/66 33 NN 486DX2/66 33 Steve Tinney 486DX2/66 Intel 33 Chuck Munro 486DX2/66 VLB 33.0 Sebastien Dedieu 486DX2/66 AMD 33.05 G. Skinner 486DX2/66 33.20 Arnd Gehrmann 486DX2/66 Intel/PCI 33.22 C. Menke 486DX2/66 33.22 Brian Ricker 486DX2/66 33.22 Don Bennett < 486DX2/66 33.22 Robert Heller 486DX2/66 33.22 Warwick Ward-Cox 486DX2/66 33.22 Chien-An Chen 486DX2/66 Eisa/VL 33.22 Serge 486DX2/66 AMD 33.22 Wayne Robinson 486DX2/66 Intel 33.22 Jim Barber 486DX2/66 33.22 Tom Lowery 486DX2/66 33.27 S Viznyuk 486DX2/66 33.3 Devon Tuck 486DX2/66 256cache 33.4 H. Peter Anvin 486DX2/66 33.5 Jongyoon Lee 486DX2/66 33.5 Petrovsky Alexey 486DX2/66 33.5 Sung Lee 486DX2/66 33.55 Gene McCulley 486DX2/66 33.55 W. Zeilinger 486DX2/66 33.55 Donald Lewis 486DX2/66 33.55 Eric Malkowski 486DX2/66 0c 33.55 Chris Petit 486DX2/66 33.55 486DX2/66 33.55 Jesper de Jong 486DX2/66 33.55 John Paul Morrison 486DX2/66 33.55 Arash 486DX2/66 33.55 Ralph Lewis 486DX2/66 33.55 Ulisses Alonso Camaro 486DX2/66 33.55 Bussmann 486DX2/66 Intel/PCI 33.55 Louis J. LaBash 486DX2/66 Intel 33.55 Andrew Tubbiolo 486DX2/66 33.55 W Fink 486DX2/66 ICL 33.55 Mathias Koerber 486DX2/66 33.55 Bill Pogue 486DX2/66 256c 33.58 Theo Scott 486DX2/66 33.7 C Triantafillou 486DX2/66 256c Intel 33.81 S Harris 486DX2/66 33.9 Magnus Back 486DX2/66 notebook 33.9 Robert A Knop 486DX2/66 34.06 Al Clark 486DX4/75 37.47 G Asmundarson 486DX2/80 39.93 Andrew Tubbiolo 486DX2/80 overcl/66 39.94 Mario L. Guttierez 486DX2/80 AMD 39.94 Corey D Brenner 486DX2/80 39.94 Dan Delaney 486DX2/80 39.94 D t Haar 486DX2/80 overcl 39.94 Peter Suetterlin 486DX2/80 AMD 39.94 JL Gomez 486DX2/80 AMD 39.94 Pete Krawczyk 486DX2/80 AMD 40 Rene Baart 486DX2/80 AMD 40 Wolfgang Kalthoff 486DX2/80 40.0 Rick Brown 486DX2/80 AMD 40.14 Jon Lewis 486DX2/80 AMD 40.14 Richard S. Stone 486DX2/80 40.15 Oleg 486DX2/80 AMD 40.18 Adri Verhoef 486DX2/80 40.18 Mats Andtbacka 486DX2/100 AMD overcl 49.14 Jon Lewis 486DX4/100 256c 49.71 Lutz Pressler 486DX4/100 49.71 Brett Gersekowski 486DX4/100 Intel 256c 49.77 Angelo Haritsis 486DX4/100 49.78 Aurel Balmosan 486DX4/100 49.87 Chris Saia 486DX4/100 50 Donald Lewis 486DX4/100 50.02 Peter Skov Knudsen 486DX4/100 50.02 Shadow Weaver 486DX4/100 AMD 50.3 Dave 486DX4/100 AMD 50.04 Tony Smolar 486DX4/100 50.05 fredk 486DX4/100 50.06 Ronald Prague 486DX4/100 50.08 Matt Gisher 486DX4/100 50.08 Steven A. Duchene 486DX4/100 50.08 Miles O'Neal 486DX4/100 50.08 Will 486DX4/100 50.08 Piet de Bondt 486DX4/100 laptop 50.08 Karl Kleinpaste 486DX4/100 256c 50.08 Thomas Kanschik 486DX4/100 50.08 Linas Vepstas 486DX4/100 50.08 Ed Daiga 486DX4/100 notebook 50.08 Gerry Quejada 486DX4/100 AMD 50.08 B Schuller 486DX4/100 50.08 J.L. Brothers 486DX4/100 50.08 David E.A. Wilson 486DX4/100 50.08 Mark Lumsden 486DX4/100 50.08 Ashar 486DX4/100 50.08 Jacob Waltz 486DX4/100 50.08 Tom Sinclair 486DX4/100 AMD 50.08 G. Skinner 486DX4/100 AMD 50.08 Nick Savoiu 486DX4/100 50.08 Thomas J Fisher 486DX4/100 50.08 Pascal Pensa 486DX4/100 50.08 Julian Bradbury 486DX4/100 50.51 Frederic Potter 486DX4/100 50.66 Bill Stegers 486DX4/120 256c 59.1 Kevin 486DX4/120 AMD 59.80 Mark Tranchant 486DX4/120 AMD 59.80 Fred Broce 486DX4/120 AMD 59.90 Marko Ovaska 486DX4/120 AMD 59.80 Bob Purdon 486DX4/120 AMD 59.80 Pat Young 486DX4/120 59.91 Will 486DX4/120 AMD 256c 60.01 Angelo Haritsis 486DX4/120 overcl 60.45 Pascal Pensa 486DX4/120 60.45 Neal Howard 486DX4/120 AMD 60.45 Oscar Belmar Madrid 486DX4/120 60.45 Jason Buchanan 486DX4/120 60.45 Foersterling 486DX4/120 60.45 Bernd Hentig 5x86/133 AMD 66.15 Brad Wilson 5x86/133 AMD 66.44 P Yli-Krekola 5x86/133 AMD 66.55 Andrew B. Cramer 5x86/133 AMD 66.56 Bob Nielsen 5x86/133 AMD 66.65 Geoff Raye 5x86/133 AMD 66.7 Klaas Hemstra 5x86/133 AMD 66.80 N.N. 5x86/133 AMD 256c 67.10 Vasily Lewis 5x86/133 AMD 67.10 James Reith 5x86/133 AMD 256c 67.10 Yves Rougy 5x86/133 AMD 256c 67.10 Peter A. Koren 5x86/133 AMD 256c 67.10 Wim Joppe 5x86/133 AMD 256c 67.10 Gunnar Stefansson 5x86/133 AMD 256c 67.10 Vernard Martin 5x86/150 AMD overcl 74.75 Sergio Riveros 5x86/150 AMD overcl 74.75 Arthur K. Chan 5x86/160 AMD overcl 79.87 M.Suencksen 5x86/160 AMD overcl 79.87 J. Chris Hammond 5x86/160 AMD overcl 79.89 Martin Vernon 5x86/160 AMD overcl 79.92 T. Zerucha 5x86/160 AMD overcl 80.36 Paul Colucci 5x86/160 AMD overcl 80.36 Steinar Haug 5x86/160 AMD overcl 80.36 James Daniel 5x86/160 80.36 David H.S. Oh E. Normal 486 variations: Cyrix/IBM, UMC System BogoMips Reporter 486DLC/33 9.42 Dennis Robinson 486DLC/33 387DX/40 9.47 Denis Solaro 486DLC/33 Cyrix wb 9.5 M. Asplund 486DLC/33 Cyrix 386 11.2 Alex Freed 486DLC/40 256c 11.33 Schendel 486Dx/40 Cyrix 11.73 Malcolm Bremer 486DRx2/40 Cyrix 13.10 Christopher Lau 486DX/33 Cyrix 13.21 M Haardt 486DLC/40 bogoboost 13.21 Harry Pasanen 486DLC/40 487 Cyrix 13.21 Ian A. Verschuren 486DCL Cyrix 13.3 Tracer Bullet P.I. 486DLC/40 13.31 Adam Frampton 486DLC/40 13.31 Rick Chow 486SLC-S/33 13.51 Brad Pepers 486DLC/40 no Cxpatch 15.47 Sergei O. Naoumov 486DLC/40 TI 128c 15.97 Philip K. Roban 486DLC/40 Cyrix 15.97 L.J. LaBash 486DRx2/40 15.99 Christopher Lau 486DX2/66 IBM no-FF 19 NN 486SLC2/66 IBM 64c 18.95 Sujat Jamil 486SLC2/66 IBM 128c 18.95 Sujat Jamil 486SLC2/66 19.02 Harry Mangalam 486SLC/50 19.28 Sion Arrowsmith 486BL3/75 IBM 256c 21.50 Ming S. Chan 486DX2/66 Cyrix 128c 26.63 Derek Kwan 486DX2/66 Cyrix 26.63 Adrian Parker 486DX2-S/66 256c 26.63 Jean-Marc Wislez 486SX-S/33 UMC 0c 20.20 Hynek Med 486SX-S/40 UMC 0c 26.52 Hynek Med 486SX-U5/40 UMC 0c 26.63 Dusan Mihajlovic F. Oddly or faultly configured Pentium systems, or variations System BogoMips Reporter Pentium/66 2.18 Bob Myers Pentium/90 notebook 9.5 Mark Maybee 6x86/120 Cyrix 52.32 Joel Boring Pentium/83 Overdrive 82.85 Brian Smith Pentium/83 Overdrive 83.32 Scott Francis Pentium/83 Overdrive 82.94 G. Spiegelberg Pentium/83 Overdrive 83.35 Jacek Polewczak 6x86/120 P120+overcl 104.86 Howard Poe G. Normal Pentium systems System BogoMips Reporter Pentium/60 23 Chien-An Chen Pentium/60 23.96 Joost Helberg Pentium/60 23.96 Ulf Tietz Pentium/60 Gateway 23.96 Manoj Kasichainula Pentium/60 23.96 Pierre Frenkiel Pentium/60 23.96 Tim Oosterbroek Pentium/60 NCR 3455 24 Mathias Koerber Pentium/60 24 Joe Sloan Pentium/60 24.0 Mark H. Wood Pentium/60 24.13 R.M. van Rijswijk Pentium/66 25 Chuck Munro Pentium/66 26.63 Jason M. Naughton Pentium/66 26.84 Kelly Carmichael Pentium/75 256c 29.5 Chris Dodd Pentium/75 Intel 29.79 Scott M. Grim Pentium/75 29.95 Steve Martin Pentium/75 30.22 Zoran Marjanski Pentium/75 30.22 Andrew Buckby Pentium/75 30.22 Stuart Nuttall Pentium/90 notebook 32.73 Rich Neves Pentium/90 34.07 A. Galbraith Pentium/90 zappa 256c 35.6 Sebastien Dedieu Pentium/90 35.84 Jason Nunn Pentium/90 35.88 Joe Anderson Pentium/90 35.88 Warwick Allison Pentium/90 35.94 Erik Walthinsen Pentium/90 36 Joe Sloan Pentium/90 36 Larry Auton Pentium/90 36 Richard Knipe Pentium/90 36.0 Werner Almesberger Pentium/90 36.06 Rob J. Nauta Pentium/90 36.08 Leung Hon Wa Pentium/90 Zeos 36.08 Chris Laurel Pentium/90 36.08 Ronald Prague Pentium/90 36.08 Adrian Blues Pentium/90 36.08 Pak Yin Tam "Fred" Pentium/90 36.08 Jason Heiss Pentium/90 36.08 Tim Krantz Pentium/90 Gateway 36.08 Pete Stewart Pentium/90 36.08 Tom Manos Pentium/90 36.08 Richard Mundell Pentium/90 36.08 NN Pentium/90 36.08 Yavuz Batmaz Pentium/90 36.08 Alan Skelley Pentium/90 36.08 Ralph Sims Pentium/90 36.08 Julian Bradbury Pentium/90 36.08 Dan Langrill Pentium/90 36.08 Ravi Krishna Swamy Pentium/90 36.08 J.L. Brothers Pentium/90 Micronics 36.09 Andrew Brown Pentium/90 36.27 Giao H. Phan Pentium/90 Plato 36.4 Joe Valenzuela Pentium/90 36.5 Mike Kelleher Pentium/90 36.9 Ted Gaunt Pentium/100 39.52 Adrian Blues Pentium/100 overcl 39.73 Phil Howard Pentium/100 39.73 Pentium/100 0c 39.73 Jason Crawford Pentium/100 39.93 Tom Miller Pentium/100 Cyrix 39.94 Mike Holland Pentium/100 39.94 KAZ Vorpal Pentium/100 overcl 39.94 Donar G.E. Alofs Pentium/100 39.94 Larry Snyder Pentium/100 39.94 Ian Hill Pentium/100 39.94 John Crawford Pentium/100 39.94 Jered Pentium/100 overcl 39.94 Ian Pentium/100 39.94 Brian McGhee Pentium/100 39.94 M Skjelland Pentium/100 39.96 Dan Kha Pentium/100 39.98 Phillipe Charon Pentium/100 40.03 Pentium/100 40.08 Ronny Spiegel Pentium/100 40.18 David Baldwin Pentium/100 40.18 Pentium/120 Cyrix 47.8 Simon Ho Pentium/120 Cyrix 47.92 Joel N. Squire Pentium/120 47.93 Umberto d'Ortona Pentium/120 Cyrix 47.93 Jim T. Polk Pentium/120 47.93 Jon Trowbridge Pentium/120 47.98 Craig Bates Pentium/120 Cyrix 48 Steve Pentium/120 48.00 Michael Wazenski Pentium/120 Intel 48.02 Scott M. Grim Pentium/120 Cyrix 48.27 Glenn T. Jayaputera Pentium/120 48.27 Roman Mitnitski Pentium/120 48.27 Peter Walsh Pentium/120 Cyrix 48.2 Viznyuk Pentium/120 49.27 Simon Hargrave Pentium/133 53.04 Wayne Roberts Pentium/133 53.04 Gregory Travis Pentium/133 overcl 53.04 A. Kunigelis Pentium/133 53.25 Chuck Mattern Pentium/133 53.26 Glenn Holt Pentium/133 53.26 Heikki Levanto Pentium/133 53.26 Chaim Tarshish Pentium/133 53.26 Mitchell B. Hamm Pentium/133 53.26 Donald Lewis Pentium/133 53.26 Jon Trowbridge Pentium/133 53.26 Charny Peete Mitchell Pentium/133 256c 53.26 David Wuertele Pentium/133 256c 53.68 Guiseppe Miceli Pentium/133 53.68 Michael Kress Pentium/150 Intel 59.80 Joel D. Young Pentium/150 overcl 60.21 Duarte Cordeiro Pentium/166 66.16 Pedro Soria-Rodriguez Pentium/166 66.35 K. Visweswaran Pentium/166 66.44 Donald Lewis Pentium/166 66.76 F. Baitinger Pentium/166 67.10 Jon Trowbridge Pentium/166 67.10 Dylan Pentium/166 512c 67.10 Dirk Freese Pentium/200 79.66 Piete Brooks Pentium/200 79.89 Dave S. Baker H. Normal Pentium variations: SMP, PPro, Cyrix, AMD System BogoMips Reporter SMP Pentium/90 71.98 Daniel Luhde-Thompson SMP Pentium/90 72.08 Alan Cox SMP Pentium Pro/200 398.14 C.-A. Possamai SMP Pentium Pro/200 398.6 Bill Davidsen SMP Pentium Pro/200 398.95 Fons Rademakers SMP Pentium Pro/200 398.98 Greg Fausak Pentium Pro/133 132.88 John D. Sundberg Pentium Pro/180 179.61 Chuck Fee Pentium Pro/200 197.42 Michael Griffith Pentium Pro/200 197.42 Curtis Varner Pentium Pro/200 198.84 Erik Max Francis Pentium Pro/200 198.84 Marc Winkler Pentium Pro/200 199.04 V. Bostrom Pentium Pro/200 199.06 Justin Clancy Pentium Pro/200 199.06 Glenn Lamb Pentium Pro/200 199.06 Laszlo Herczeg Pentium Pro/200 199.07 Stefan Pentium Pro/200 199.07 Greg Fausak Pentium Pro/200 199.07 Chris Jones Pentium Pro/200 200.32 Jose Navarro Pentium Pro/200 200.32 Pentium Pro/200 200.32 Wayne Scott Pentium Pro/200 200.32 Adrian L. Hosey 5x86/100 Cyrix 100.16 NN 5x86/100 100.19 Valient Gough 5x86/100 Cyrix 100.47 C.Chan 5x86/120 Cyrix P150+ 119.60 Wynstan Tong 5x86/120 Cyrix P150+ 119.60 Joel N. Squire 5x86/120 Cyrix P150+ 119.83 Leland Olds 5x86/120 Cyrix P150+ 119.83 NN 5x86/120 Cyrix P150+ 120.68 C.Chan 5x86/133 Cyrix P166+ 132.88 Craig Andersen 6x86/100 Cyrix 99.42 Stig M. Valstad 6x86/110 Cyrix P133+ 109.77 Matthew Flint 6x86/110 Cyrix P133+ 109.77 John Merriam 6x86/110 Cyrix P133+ 109.77 Keith Smith 6x86/120 Cyrix P150+ 119 Jean-Claude Gouiran 6x86/120 Cyrix P150+ 119.60 Taso Lyristis 6x86/120 Cyrix P150+ 119.60 Hrvoje Stipetic 6x86/120 Cyrix P150+ 119.83 Roger Merchberger 6x86/120 Cyrix 119.83 Daniel Wold 6x86/120 Cyrix 120 John C. Beasley 6x86/120 Cyrix P150+ 120.01 Jeawan Kim 6x86/120 Cyrix P150+ 120.91 Cymen 6x86/133 Cyrix P166+ 132.71 Hrvoje Stipetic 6x86/133 Cyrix P166+ 132.82 Alex Liffers 6x86/133 Cyrix P166+ 132.82 Brian C. Theobald 5k86/90 AMD 179.40 5k86/90 AMD 179.40 Ken Edwards 5k86/90 AMD 181.00 Drew Golden 5k86/100 AMD 199.07 Henri Jamgotchian 5k86/100 AMD 199.88 J. Grassel I. Normal Alpha systems System BogoMips Reporter 21064/150 Jensen 148.37 Linus Torvalds 21064/150 Jensen 149.49 J.L. Brothers 21064/150 Jensen 148.89 Martin Osterman k 21064A/275 Cabriolet 272 Linus Torvalds 21064A/275 272 Stephen Gaudet 21064A/275 Cabriolet 272.63 Jay Estabrook 21064A/275 Cabriolet 273.37 David Mosberger-Tang 21064A/275 274.11 Kevin Jacobs 21064A/300 Cabriolet 298 Jay Estabrook 21064A/300 298 Stephen Gaudet 21066/166 164.59 David Mosberger-Tang 21066/166 Multia 164.63 Rudolf Gabler 21066/166 165 Gareth Bult 21066/166 165.04 Craig Ruff 21066/200 196.9 Danny ter Haar 21066/200 UDB overcl 198 Kari Davidsson 21066A/233 AS400 230.16 Ophir Ronen 21066A/233 NoName 230.67 T. Bogendoerfer 21066A/233 NoName 230.76 Mikael Nykvist 21066A/233 UDB 231.21 Eric Smith 21066A/233 NoName 231.21 Jay Estabrook 21066A/266 NoName ov.cl 261.62 Andreas Johansson 21066A/266 NoName ov.cl 262.14 Wim van Dorst 21066A/284 NoName ov.cl 281.0 21066A/297 NoName ov.cl 293.6 21164/266 EB164 265.29 Jay Estabrook 21164/333 Alcor 331.35 Linus Torvalds 21164/333 Alcor 331.35 David Mosberger-Tang 21164/433 PC164 429.91 Bernd Meyer J. Normal Motorola systems System BogoMips Reporter 68030/16 Atari Falcon 3.95 J.L. Brothers 68030/16 Atari Falcon 3.98 68030/20 0c 4.92 Chris Nadigh 68030 Amiga 4000-30 6.09 Karsten Merker 68030/25 Amiga 3000 6.21 Hamish Macdonald 68030/25 Amiga 3000 6.21 J.L. Brothers 68030/32 Atari Falcon 7.91 Franz Korntner 68030 Atari TT 7.96 68030/32 Atari MegaST 7.98 E.J. van den Bussche 68030/33 Atari TT 7.98 86030 Atari TT 7.98 Wayne Booth 68030/48 32c 11.89 Martin Rogge 68030/50 Atari 12 68030/50 32c 12.42 Michael Plonus 68040/24 Amiga 4000-40 16.6 Hamish Macdonald 68040/24 Amiga 4000-20 16.60 J.L. Brothers 68040/25 Amiga 4000-040 16.61 68040/25 Amiga 4000 16.61 Lawrence 68040/66 Medusa T60 22 68060/50 Amiga 4000 100.16 Jan Johansson K. Other Systems: Sparc, PowerPC, Mips, Intel 8088 System BogoMips Reporter Sparc Sun4c 17.94 J.L. Brothers PowerPC 601/60 Mac6100 45.24 J.L. Brothers PowerPC 601/66 Mac 51.62 Fred Klein PowerPC 601/60 Mac6100 59.38 Kent Radek Mips R4000/100 48.30 J.L. Brothers Mips R4000/100 Magnum 50.03 Andreas Busse Mips R4400/134 Acer Pica 67.10 Andreas Busse Mips R4400/134 Acer Pica 67.10 Ralf Baechle Mips R4600/133 Tyne 133.12 Ralf Baechle Intel 8088/4.77 0.02 Tim Van der Linden Intel 8088/10 0.05 Tim Van der Linden Intel 8086 0.5 Kin Lau L. Non-Linux systems (reference only) System OS BogoMips Reporter 68020/20 Sun 3 SUNOS 2.0 68020/25 Sun 3-180 SUNOS 4.0 Sparc Sun 3-60 SUNOS 4.00 Sparc Sun 3-80 SUNOS 4.00 68040/33 HP9000-280 HP-UX 14 Sparc Sun 4-280 SUNOS 16.0 Sparc Sun IPC/40 Solaris 16.00 68040 NextStep (?) 16.26 Sparc Sun Sparcstation1 SUNOS 18.00 Sparc Sun Sparcstation1+ SUNOS 19 Sparc Sun Sparcstation1+ SUNOS 24.00 Sparc Sun IPC SUNOS 24.00 Sparc Sun Sparcstation2 SUNOS 26.00 SparcClassic/50 Solaris 32.00 Sparc Sun ELC SUNOS 32.00 HP-PA 9000-720 HP-UX 32.00 Sparc Sun SS10 SUNOS 34.00 Pentium/100 Win-NT 36.21 Sparc Sun Sparcstation2 SUNOS 38.0 Mips R4000/100 Indy (?) 48.00 Mips R4000/100 SGI IndySC Irix 48.00 HP-PA 9000-720 HP-UX 48.00 Sparc Sun Sparcstation10d SUNOS 54.0 Sparc SS1000 2CPU SUNOS 58.00 Alpha 21064/133 Decstation OSF1 64 Sparc Sun SS5 SUNOS 68.00 Sparc Sun SS20 SUNOS 72.00 Sparc Sun SS20/712 Solaris 74 Mips R4400/150 Challenge (?) 74.00 Mips R4400/150 Indigo2Extr (?) 74.00 HP-PA 9000-715 HP-UX 74.00 Alpha OSF1 92.00 Mips R4400/200 Indigo2Extr (?) 98.00 HP-PA 9000-735/99 HP-UX 98.00 Sparc Sun SS4/110 Solaris 108 Sparc Sun SS5 SUNOS 110 Alpha 21064A/233 OSF1 114 HP-PA 700/125 HP-UX 122 HP-PA 9000-735/125 HP-UX 122.00 Mips R4600/133 SGI Indy Irix 132 Alpha OSF1 180.0 Sparc Sun US1/170 Solaris 330 Alpha 3000/600S VMS 348.61 Alpha server 1000-4/200 VMS 397.68 Cray J90 Y-MP/100 16CPU Unicos 912.00 Roderick (three months) is a good eater. He drinks roughly 0.8 litre of milk per day. Especially comparing it to Isolde (2.5 years) who is more playing with here one slice of bread in the morning than eating it. Even with Hagelslag. Met vriendelijke groeten, Wim van Dorst. -------------------------------------------------------------------- Blue Baron = Wim van Dorst, Voice (+31) 33 4676365, (+31) 35 5242319 (-: baron@clifton.hobby.nl WvD@Chem.AkzoNobel.nl :-) --------------------------------------------------------------------