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How to get image height and width using java?
...t one. Blows ImageIO.read() completely out of the water, both in terms of CPU time and memory usage.
– aroth
Feb 4 '16 at 5:41
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Random record from MongoDB
... Apprichiate your idea. Finally, I have a great code that is much CPU & RAM friendly! Thank you
– Qais Bsharat
Mar 3 at 22:49
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Why use the INCLUDE clause when creating an index?
...mns while already updating the index. The overhead is the extra memory and CPU used to store redundant info on the index.
If the columns you consider to add as included-columns are often updated (without the index-key-columns being updated) - or - if it is so many of them that the index becomes clo...
How do you implement a Stack and a Queue in JavaScript?
...have a really good reason for it... while it might seem logically correct, CPUs don't operate according to human abstractions. Iterating over a datastructure that has pointers all over the place will result in cache misses in the CPU, unlike a sequential array which is highly efficient. blog.davidec...
What is the bit size of long on 64-bit Windows?
...icial site) say that long are indeed 64 bits when compiling for a 64-bit CPU. I looked up what it was on 64-bit Windows and found
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Should I use char** argv or char* argv[]?
... says: argv is a non-null pointer pointing to at least 5 char*'s
// allows CPU to pre-load some memory.
int main(int c, char *argv[static 5]);
// says: argv is a constant pointer pointing to a char*
int main(int c, char *argv[const]);
// says the same as the previous one
int main(int c, char ** c...
Is it possible to “decompile” a Windows .exe? Or at least view the Assembly?
...roach. Variable names are non-existent; such a thing doesn't exist to your CPU. Library calls are confusing as hell and often require disassembling further binaries. And assembly is hard as hell to read in the best of conditions.
Most professional programmers can't sit and read assembly language wi...
Why doesn't .NET/C# optimize for tail-call recursion?
...what I know.
Sometimes tailcall is a performance win-win. It can save CPU. jmp is
cheaper than call/ret It can save stack. Touching less stack makes for
better locality.
Sometimes tailcall is a performance loss, stack win.
The CLR has a complex mechanism in which to pass more paramet...
Pandas read_csv low_memory and dtype options
...loading (but none after loading is complete) and theoretically saving some cpu cycles (which you won't notice since disk I/O will be the bottleneck.
– firelynx
Sep 1 '16 at 11:22
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How to send an object from one Android Activity to another using Intents?
...ne process you're mucking about in. reasons why it's not good: memory use, cpu use, battery use. the last one especially made the design choices with intents quite perplexing in hindsight. there are people who insist that they're a good idea, usually because "google said so".
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