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Floating point vs integer calculations on modern hardware

...ere are many, many variables to performance...especially between integer & floating point math. It varies strongly from processor to processor (even within the same family such as x86) because different processors have different "pipeline" lengths. Also, some operations are generally very simp...
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What does f+++++++++ mean in rsync logs?

... read the section for -i, --itemize-changes in man rsync Decoding your example log file from the question: >f.st...... > - the item is received f - it is a regular file s - the file size is different t - the time stamp is different .d..t...... . - the item is not being updated (though it...
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cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术

...ging Extension 03 PSE Page Size Extension 04 TSC Time Stamp Counter 05 MSR Model Specific Registers 06 PAE Physical Address Extension 07 MCE Machine-Check Exception 08 CX8 CMPXCHG8 Instruction 09 APIC On-chip APIC Hardware 10 ...
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Creating range in JavaScript - strange syntax

...//true arr[0]; //'a' Object.keys(arr); //['0', '1', '2'] arr.length; //3, implies arr[3] === undefined //we expand the array by 1 item arr.length = 4; arr[3]; //undefined arr.hasOwnProperty(3); //false Object.keys(arr); //['0', '1', '2'] We get to the inherent difference between the number of ite...
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Schema for a multilanguage database

...it + since you are not autogenerating a translationid it may be easier to import items together with their related translations. The negative side of this is that if you have a complex language fallback mechanism you may need to implement that for each translation table - if you are relying on some ...
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List of All Locales and Their Short Codes?

... The importance of locales is that your environment/os can provide formatting functionality for all installed locales even if you don't know about them when you write your application. My Windows 7 system has 211 locales installed...