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Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int'
...t seen any difference. It will only make a difference in apps that use the CPU heavily - games for example would see a benefit compiling for 64 bit.
– Robert J. Clegg
Mar 13 '14 at 19:27
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Why can't enum's constructor access static fields?
...e problem solved via a nested class. Pros: it's shorter and also better by CPU consumption. Cons: one more class in JVM memory.
enum Day {
private static final class Helper {
static Map<String,Day> ABBR_TO_ENUM = new HashMap<>();
}
Day(String abbr) {
this.a...
When to use volatile with multi threading?
...weakly-ordered memory might be a problem for this use-case: all real-world CPUs have coherent shared memory so volatile will work for this on real C++ implementations. But still don't do it.
Some discussion in comments seems to be talking about other use-cases where you would need something strong...
Convert a String In C++ To Upper Case
...ry/cache effects: data is hot in L1 cache the whole time, and we're purely CPU-bound.
boost::to_upper_copy<char*, std::string>(): 198.0s. Yes, Boost 1.58 on Ubuntu 15.10 is really this slow. I profiled and single-stepped the asm in a debugger, and it's really, really bad: there's a dynam...
list every font a user's browser can display
...ch fiability in showing content or parsing page in manner to not fill much cpu
– Constantin
Jul 24 at 8:41
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How many parameters are too many? [closed]
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A good rule-of-thumb is the number of CPU registers, because anymore and the compiler will be forced to allocate them on the stack.
– Michaelangel007
Mar 31 '16 at 14:10
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What's the purpose of the LEA instruction?
...nVoigt I used to say that, because I'm an old bloke :-) Traditionally, x86 CPUs did use the addressing units for this, agreed. But the "separation" has become very blurry these days. Some CPUs no longer have dedicated AGUs at all, others have chosen not to execute LEA on the AGUs but on the ordinary...
When to use reinterpret_cast?
...ic_cast stands for.
On the other hand, when you call reinterpret_cast the CPU does not invoke any calculations. It just treats a set of bits in the memory like if it had another type. So when you convert int* to float* with this keyword, the new value (after pointer dereferecing) has nothing to do ...
WebRTC - scalable live stream broadcasting / multicasting
...single broadcast can be relayed over unlimited users without any
bandwidth/CPU usage issues. Everything happens peer-to-peer!
This should definitely be possible to complete.
Others are also able to achieve this: http://www.streamroot.io/
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Wrapping synchronous code into asynchronous call
...ous API for it.
I'll proceed with the assumption that your "service" is a CPU-bound operation that must execute on the same machine as the web server.
If that's the case, then the next thing to evaluate is another assumption:
I need the request to execute faster.
Are you absolutely sure that...