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Maximum number of threads per process in Linux?
...work to do is going to slow you down as they're fighting for the available CPU time)
What are you doing where this limit is even relevant?
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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...
Return a `struct` from a function in C
...that take place flinging structures around by value can be a real waste of CPU cycles, not to mention memory bandwidth.
– Carl Norum
Mar 11 '12 at 7:15
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How to clear APC cache entries?
... @Julien I guess it may increase server load if you are storing cpu intensive results or something. I wouldn't do it on a peak hour.
– ChocoDeveloper
Feb 4 '13 at 10:40
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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...