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Raspberry Pi
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Raspberry Pi Zero[2020/12] What other computer system consumes no more than 1 watt of power and costs $~10? Though not its intended purpose, RPI0 is way too slow as a desktop computer. RPI0 is fast enough to run GUI, but then most complex programs will run tortuously slow. Some programs ran faster on 25Mhz 80486. A few programs do run fast enough, similar programs don't. Lack of L1 cache is what mainly cripples RPI0 apparently. ARM had (past tense) a reputation for being sleek and efficient. Let's look at junk that has accumulated into instruction-set of RPI0's ARM, from Linux /proc/cpuinfo: processor : 0 model name : ARMv6-compatible processor rev 7 (v6l) BogoMIPS : 797.66 Features : half thumb fastmult vfp edsp java tls ^^^^ -- JUNK -- |
benchmarksSpeed of compiling GNU emacs[2020/12] Not equal comparisons, variously compiled emacs versions 24..27, emacs may have been compiled in temp RAM on PCs having ample memory. ~40 sec PC Intel Goldmont+ Atom J5005, 2.8Ghz, 4 cores ~80 sec PC Intel Core 2 Duo, 2.2Ghz, 2 cores ~115 sec PC AMD64X2 2.2Ghz, 2 cores ~470 sec Mac Mini PowerPC G4 7450 1.33Ghz 2613 sec Raspberry Pi Zero W, 1Ghz 32-bit ARMv6, 1 core |