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What is Node.js? [closed]
...nt to have a single event-driven process than 10^6 processes competing for CPU time. Also, under overload conditions, the multi-process model behaves very poorly, starving critical administration and management services, especially SSHD (meaning you can't even log into the box to figure out how scre...
Is the sizeof(some pointer) always equal to four?
... @SangeethSaravanaraj: Note that theoretically the native word size of the CPU and what the compiler decides 'int' is can be arbitrarily different, it's just it was convention for 'int' to be the native word size before x86-64 came around, where it's long to ease backwards compat.
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What's the best practice to round a float to 2 decimals? [duplicate]
...e 1 - 18 ms
Time 2 - 1 ms
Time 3 - 378 ms
Tested on laptop
Intel i3-3310M CPU 2.4GHz
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Creating a comma separated list from IList or IEnumerable
...nchmarkDotNet=v0.10.5, OS=Windows 10.0.14393
Processor=Intel Core i5-2500K CPU 3.30GHz (Sandy Bridge), ProcessorCount=4
Frequency=3233539 Hz, Resolution=309.2587 ns, Timer=TSC
[Host] : Clr 4.0.30319.42000, 64bit RyuJIT-v4.6.1637.0
Clr : Clr 4.0.30319.42000, 64bit RyuJIT-v4.6.1637.0
Core :...
Removing trailing newline character from fgets() input
...trimming is usually not an issue given code is doing I/O - a black hole of CPU time. Should following code need the string's length or is highly performance conscious, use this strlen() approach. Else the strcspn() is a fine alternative.
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java.util.regex - importance of Pattern.compile()?
...n the heap in methods called thousands of times is usually much lighter on CPU, memory and thus the GC.
– Volksman
Apr 14 '18 at 3:22
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Why does integer overflow on x86 with GCC cause an infinite loop?
...y integers wrap around, but on occasion weird stuff happens".
Yes, on x86 CPUs, integers usually wrap the way you expect. This is one of those exceptions. The compiler assumes you won't cause undefined behavior, and optimizes away the loop test. If you really want wraparound, pass -fwrapv to g++ or...
Difference between Statement and PreparedStatement
...than disk operations which are an order of magnitude slower than in-memory CPU operations. Hence, any reduction in amount of data sent over the network will have a good effect on overall performance.
They protect against SQL injection, by escaping text for all the parameter values provided.
They pr...
Hidden Features of PHP? [closed]
...in the language core and are used all over the place which results in good CPU cache locality. Perl and Python both use separate language constructs for lists and maps resulting in more copying and potentially confusing transformations.
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Download File Using Javascript/jQuery
...ry at least as large as the file being downloaded and/or other interesting CPU side effects.
fetch('https://jsonplaceholder.typicode.com/todos/1')
.then(resp => resp.blob())
.then(blob => {
const url = window.URL.createObjectURL(blob);
const a = document.createElement('a'...