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Should I Stop Stopwatch at the end of the method?
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Also a Stopwatch isn't doing any work or eating cpu clock cycles between the calls to Start() and Stop(). Start() just sets a timestamp to now and Stop() calculates and saves the time elapsed since that. See source in coreclr: github.com/dotnet/corefx/blob/master/src/…
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How to throw an exception in C?
... process, signals to the process (Program Error Signals (GNU libc)) or the CPU hardware interruption (or other notification error form the CPU if there is)(How processor handles the case of division by zero).
Exceptions are defined in C++ and other languages though. Exception handling in C++ is spe...
Understanding garbage collection in .NET
...longer used. Also whether that variable is stored on the stack frame or a cpu register.
This table is essential to the garbage collector, it needs to know where to look for object references when it performs a collection. Pretty easy to do when the reference is part of an object on the GC heap. ...
How can I transition height: 0; to height: auto; using CSS?
...uite like the jQuery slideUp/Down. You can see a difference only with weak CPU's, like old computers or mobile, and opening and closing many of them at the same time.
– Cruz Nunez
Jul 1 '16 at 4:12
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How do you calculate log base 2 in Java for integers?
...lace a few static math functions with alternative implementations based on CPU intrinsics. One of those functions is Integer.numberOfLeadingZeros(). So with a 1.7 or newer server VM, a implementation like the one in the question is actually slightly faster than the binlog above. Unfortunatly the cli...
Why do you not use C for your web apps?
...buffer overflows, having a compile stage between the edit and test stages, etc).
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Maximum number of threads per process in Linux?
.../100k-pthread-create-app
2018 update from @Thomas, on systemd systems:
/etc/systemd/logind.conf: UserTasksMax=100000
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Return a `struct` from a function in C
...behaviour with respect to pass-by-value for parameter passing, assignment, etc.:
#include <stdio.h>
int f(int x)
{
int r = x;
return r;
}
int main(void)
{
int x = 12;
int y = f(x);
printf("%d\n", y);
return 0;
}
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recursion versus iteration
... course every recursion can be modeled as a kind of loop : that's what the CPU will ultimately do. And the recursion itself, more directly, means putting the function calls and scopes in a stack. But changing your recursive algorithm to a looping one might need a lot of work and make your code less ...
How accurate is python's time.sleep()?
...kernel unable to schedule your process as soon as you'd like, even without CPU contention. That's what the realtime kernels are trying to fix, I think. But, unless you really need realtime behavior, simply using a high tick rate (kernel HZ setting) will get you not-guaranteed-but-high-resolution s...