Messages in this thread | | | From | Andrzej Krzysztofowicz <kufel!> | Subject | Re: [PATCH] 2.3.49 Configure.help processor patch | Date | Sat, 4 Mar 2000 20:15:42 +0100 (CET) |
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> Attached is a Configure.help patch for 2.3.49 for the processor > selection section. I doubt it's complete, but it's a start. At > least the options are represented correctly.
Some more comments here:
> > - If you specify one of "486" or "586" or "Pentium" or "PPro", then > - the kernel will not necessarily run on earlier architectures (e.g. a > - Pentium optimized kernel will run on a PPro, but not necessarily on > - a i486). > + If you specify anything other than 386, then the kernel the kernel ^^^^^^^^^^^^^ duplicated > + will not necessarily run on earlier architectures (e.g. a Pentium > + optimized kernel will run on the newer PPro, but not necessarily on > + the older i486). > > Here are the settings recommended for greatest speed: > - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI > 486DLC/DLC2 and UMC 486SX-S. Only "386" kernels will run on a 386 > class machine. > - - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or > + - "486/Cx486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or > SL/SLC/SLC2/SLC3/SX/SX2, AMD/Cyrix 5x86, NexGen Nx586 and > UMC U5D or U5S. > - - "586" for generic Pentium CPUs, possibly lacking the TSC > + - "586/K5/5x86/6x86" for the Intel Pentium/Pentium MMX, AMD K5 and > + generic 5x86 and 6x86. > + - "Pentium/TSC" for generic Pentium CPUs, possibly lacking the TSC > (time stamp counter) register. You reversed these options meaning! Pentium/TSC is for Pentium/Pentium MMX with TSC support. AMD K5 does not support TSC...
> - - "Pentium" for the Intel Pentium/Pentium MMX, AMD K5, K6 and > - K6-3D. > - - "PPro" for the Cyrix/IBM/National Semiconductor 6x86MX, MII and > - Intel Pentium II/Pentium Pro. > + - "K6/II/III" for AMD K6, K6-3D, K6-II and K6-III > + - "PPro/6x86MX" for the Cyrix/IBM/National Semiconductor 6x86MX, MII > + and Intel Pentium II/Pentium Pro. > + - "Athalon" for AMD Athalon.
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