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c++ Programming Glossary: chipPerformance degradation due to default initialisation of elements in standard containers http://stackoverflow.com/questions/15952412/performance-degradation-due-to-default-initialisation-of-elements-in-standard-co a equivalent cheating method using my macbook's intel i7 chip with 4 cores 8 hyperthreads timing std vector vector n omp parallel..
What is “cache-friendly” code? http://stackoverflow.com/questions/16699247/what-is-cache-friendly-code registers typically several levels of cache within the CPU chip L1 L2 L3 instruction caches ... RAM HDDs armed with their own..
http://stackoverflow.com/questions/1761212/any-good-c-c-dsp-library We are thinking of AVR ARM and even some middle range chips Neither are particularly designed for DSP but if your performance.. the part may not be a good DSP platform. For example Microchip's dsPIC devices are microcontrollers with a DSP subsystem that.. per MHz for DSP algorithms such as FIR and FFT and Microchip provide a DSP library optimised for the part. ST provide a DSP..
Different math rounding behaviour between Linux, Mac OS X and Windows http://stackoverflow.com/questions/1961442/different-math-rounding-behaviour-between-linux-mac-os-x-and-windows I can't speak to the implementation in Windows but Intel chips contain 80 bit floating point registers and can give greater.. this routine in the main of your application on Intel chip platforms inline void fpu_round_to_IEEE_double unsigned short..
Microsecond resolution timestamps on Windows http://stackoverflow.com/questions/2414359/microsecond-resolution-timestamps-on-windows developers working around design shortcomings and bashing chip designers. To be fair it might be the same way vice versa. ..
Programmatically access CPU fan on a laptop? (Windows) http://stackoverflow.com/questions/485448/programmatically-access-cpu-fan-on-a-laptop-windows fans. Basically the fans are controlled by the superIO chip of your computer. We access the chip directly using port mapped.. by the superIO chip of your computer. We access the chip directly using port mapped IO and from there we can get to the.. driver development and how to access and interpret superIO chip information. When we started the project we didn't know anything..
Performance of built-in types : char vs short vs int vs. float vs. double http://stackoverflow.com/questions/5069489/performance-of-built-in-types-char-vs-short-vs-int-vs-float-vs-double fast. Within reason any operation can be made fast if the chip designers are willing to throw enough transistors at the problem... cost money or rather using lots of transistors makes your chip larger which means you get fewer chips per wafer and lower yields.. makes your chip larger which means you get fewer chips per wafer and lower yields which costs money so chip designers..
What happens when a computer program runs? http://stackoverflow.com/questions/5162580/what-happens-when-a-computer-program-runs . They are essentially just very small very fast on chip memory locations that are used for a number of different purposes...
Can I force cache coherency on a multicore x86 CPU? http://stackoverflow.com/questions/558848/can-i-force-cache-coherency-on-a-multicore-x86-cpu invalidate the cache of other cores on the same chip when ever a value is written back to memory. You should read..
What is the best Evaluation Kit for Learning Embedded C/C++ Development? [closed] http://stackoverflow.com/questions/644889/what-is-the-best-evaluation-kit-for-learning-embedded-c-c-development a new model based on an STM32 with more FLASH and RAM on chip that also has a micro SD card connector and a larger LCD that..
Hoisting the dynamic type out of a loop (a.k.a. doing Java the C++ way) http://stackoverflow.com/questions/7451442/hoisting-the-dynamic-type-out-of-a-loop-a-k-a-doing-java-the-c-way time this is called the memory will be placed in an in chip memory cache if it is not there you will get a processor stall..
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