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What is the difference between using IDisposable vs a destructor in C#?
...ngs to GC) - but is used for example to close files, database connections, etc.
There are lots of previous topics on this:
deterministic finalization
disposing objects
using block
resources
Finally, note that it is not uncommon for an IDisposable object to also have a finalizer; in this case, D...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
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My data is not sorted and my tests are on iPhone arm CPU. Your results with different data and CPU may differ.
– jjxtra
Feb 3 '17 at 14:24
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Spark java.lang.OutOfMemoryError: Java heap space
...uch mem you're using)
Try using more partitions, you should have 2 - 4 per CPU. IME increasing the number of partitions is often the easiest way to make a program more stable (and often faster). For huge amounts of data you may need way more than 4 per CPU, I've had to use 8000 partitions in some c...
Alternatives to gprof [closed]
...Beside time metric, you can also query specific counters, i.e. cache hits, etc.
Unlike gprof, you can profile any process/binary running on your system using either of the two.
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Why are C character literals ints instead of chars?
...A' from this main memory into a register, which one would you read?
Some CPUs may only directly support reading a 16 bit value into a 16 bit register, which would mean a read at 20 or 22 would then require the bits from 'X' be cleared out, and depending on the endianness of the CPU one or other wo...
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
...droid nativly comes with multipe forms to execute code in:
RenderScript (CPU and GPU)
Java (SDK)
C++ (NDK)
OpenGL (GPU)
It is quite obvious that when executing code the more native the solution the faster it will be. A run-time based language will never beat a language that directly runs on the ...
How to free memory in Java?
...new in the last six years) G1 collector is a low-pause model; it uses more CPU overall, but does it's best to never force a hard-stop on execution. Since server CPUs now almost all have multiple cores, this is A Really Good Tradeoff to have available.
Look at your flags tuning memory use. Especial...
Can I redirect the stdout in python into some sort of string buffer?
...t)| (default, May 11 2017, 14:07:41) [MSC v.1500 32 bit (Intel)]
AMD/Intel CPU? True
VML available? True
VML/MKL version: Intel(R) Math Kernel Library Version 11.3.1 Product Build 20151021 for 32-bit applications
Number of threads used by default: 4 (out of 4 detected cores)
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Difference between wait() and sleep()
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@Geek - why in the world do you say wait() wastes CPU cycles?
– Robert Munteanu
Jun 24 '09 at 7:04
26
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When should I use the “strictfp” keyword in java?
...lations need to be deterministic no matter what the underlying hardware or CPU is. What's the trade-off? Most likely execution time.
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