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What's the difference between `1L` and `1`?
... large vectors, that's less wasted memory and less to wade through for the CPU (so it's typically faster).
Mostly this applies when working with indices.
Here's an example where adding 1 to an integer vector turns it into a double vector:
x <- 1:100
typeof(x) # integer
y <- x+1
typeof(y) # ...
What is the difference between using IDisposable vs a destructor in C#?
...ent but were abandoned without unsubscribing, that could cause a memory or CPU leak (since the time required to process each subscription would increase).
– supercat
May 18 '15 at 16:35
...
How to install PyQt4 on Windows using pip?
... version was better and Intel adopted it, now calling it Intel64 for their CPUs - both are pretty much compatible (very minor differences). So pretty much every 64bit x86-64 CPU out there (except Itaniums) uses AMD64.
– user136036
Feb 20 '18 at 22:02
...
String.Replace ignoring case
...nsensitive way to replace all values.
Advantages of this method:
High CPU and MEMORY efficiency;
It is the fastest solution, 2.5 times faster than other's methods
with regular expressions (proof in the end);
Suitable for removing parts from the input string (set newValue to
null), optimized for...
iPhone Data Usage Tracking/Monitoring
... mach_absolute_time is not uptime. It is roughly the amount of time the CPU has been active. mach_absolute_time mostly stops counting when the device sleeps.
– Bob Whiteman
Oct 26 '15 at 20:26
...
When to use enumerateObjectsUsingBlock vs. for
...ly faster, but that doesn't matter much in most cases — few programs are CPU-bound, and even then it's rare that the loop itself rather than the computation inside will be a bottleneck.
A simple loop also reads more clearly. Here's the boilerplate of the two versions:
for (id x in y){
}
[y enum...
Is there a library function for Root mean square error (RMSE) in python?
...i-gigabyte sized libraries; requiring 3 to 20 minute Network download then CPU full-tilt installs, when all you really need is about 3 lines of code that fits in 400 bytes. If you ask for a library for a job that can be compressed into a 1 line of code, that's about 90 characters wide, then you're ...
Android Studio vs Eclipse + ADT Plugin? [closed]
... I installed the last version of Android Studio, it consumes the CPU and RAM much much more than eclipse ((I have i7 laptop with 10G RAM )), in addition some works become hard work, I was able to build "hello world in 2 minutes in eclipse, but not be able to do so in android studio, even s...
Logging in Scala
...re sent to an actor which calls SLF4J from a dedicated thread pool. Trades CPU time for (much better) latency. github.com/oncue/journal
– Gary Coady
Jul 24 '15 at 12:03
add a ...
Parsing JSON with Unix tools
...f a parser that has to support recursion, and in this case, spends lots of CPU building trees for structures you don't care about. (If someone wrote a finite state transducer that did proper (depth-limited) JSON parsing, that would be fantastic! In the meantime we have "grep -o".)
To write maint...