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Recent questions tagged performance
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performance - Does a mutating struct function in swift create a new copy of self?
I like value semantics in swift but I am worried about the performance of mutating functions. Suppose we have the ... Point(x:self.x+1) See Question&Answers more detail:os...
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performance - JavaScript Code Works Faster when JS Profiling is on? What?
I'm facing a very strange behaviour with my application - if I start the profiler (must be JS profiler), ... be opened when running. Thanks! See Question&Answers more detail:os...
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performance - Is str.replace(..).replace(..) ad nauseam a standard idiom in Python?
For instance, say I wanted a function to escape a string for use in HTML (as in Django's escape filter): def ... to use what I wrote before? See Question&Answers more detail:os...
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performance - C# Merging Two or more Text Files side by side
using (StreamWriter writer = File.CreateText(FinishedFile)) { int lineNum = 0; while (lineNum < FilesLineCount.Min()) ... . Thanks for the help. See Question&Answers more detail:os...
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performance - Fast combinations without replacement for arrays - NumPy / Python
I'm after generating efficiently pairwise combinations from 1D array(s). Itertools is just too inefficient with if n > ... thing to it is here. See Question&Answers more detail:os...
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performance
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performance - GIN index on smallint[] column not used or error "operator is not unique"
create table test( id serial primary key, tagged smallint[] ); There is gin index on tagged column, with _int2_ops ... that will be faster ... See Question&Answers more detail:os...
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performance
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performance - Do comments get translated to machine code? C++
When a program written in C++ has comments, are those comments translated into machine language or do they never ... compile or run any slower? See Question&Answers more detail:os...
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performance
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832
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performance - What is the definition of Floating Point Operations ( FLOPs )
I'm trying to optimize my code with SIMD ( on ARM CPUs ), and want to know its arithmetic intensity ( ... point values or vectors as inputs. See Question&Answers more detail:os...
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performance - Can we avoid interning of strings in java?
Can we completely disable interning of strings. It might not be really helpful, but just a thought. I can think ... still...) Any thoughts!! See Question&Answers more detail:os...
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performance
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performance - Large 'sync' value for ParallelGCFailedAllocation
Sometimes I see long pauses in my gc.log 2014-07-18T18:42:26.137+0400: 7846.980: [GC [PSYoungGen: 86267K-> ... does 'sync' mean in this context? See Question&Answers more detail:os...
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performance
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performance - Benchmarking - How to count number of instructions sent to CPU to find consumed MIPS
Consider I have a software and want to study its behavior using a black-box approach. I have a 3.0GHz CPU ... be appreciated (in any language). See Question&Answers more detail:os...
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performance
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1.0k
views
1
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performance - Release required module from Node.js
How can one release a Node.js module during runtime in order to save memory or improve the overall performance ... . Any insights? Thanks. See Question&Answers more detail:os...
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71.8m
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performance
0
votes
1.4k
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1
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performance - Why am I receiving Response code: Non HTTP response code: java.net.SocketException?
I am trying to send requests using JMeter to my application that is running on localhost but many of the ... shots of my JMeter configuration See Question&Answers more detail:os...
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performance
0
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1.0k
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1
answer
performance - Python string concatenation Idiom. Need Clarification.
From http://jaynes.colorado.edu/PythonIdioms.html "Build strings as a list and use ''.join at the end. join ... time and B is quadratic time? See Question&Answers more detail:os...
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Oct 24, 2021
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71.8m
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performance
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votes
969
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performance - Recursion, memoization and mutable default arguments in Python
"Base" meaning without just using lru_cache. All of these are "fast enough" -- I'm not looking for the ... apparent gains in execution speeds. See Question&Answers more detail:os...
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71.8m
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performance
0
votes
976
views
1
answer
performance - Julia vs. MATLAB - Distance Matrix - Run Time Test
I started learning Julia not a long time ago and I decided to do a simple comparison between Julia and Matlab on a simple ... n) - 2.0.*GG) end See Question&Answers more detail:os...
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71.8m
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performance
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votes
814
views
1
answer
performance - According to Intel my cache should be 24-way associative though its 12-way, how is that?
According to Intel 64 and IA-32 architectures optimization reference manual, April 2012 page 2-23 The physical ... readings are very welcome. See Question&Answers more detail:os...
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performance
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991
views
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performance - Get median from AVL tree?
If you have an AVL tree, what's the best way to get the median from it? The median would be defined as the ... indexes. Is there a better way? See Question&Answers more detail:os...
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performance
0
votes
1.0k
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1
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performance - DevExpress controls for WPF load time
When i use DevExpress controls for WPF-load time of the window on which they are declared-increases. But on ... First load is still long. See Question&Answers more detail:os...
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71.8m
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performance
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votes
862
views
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performance - What factors can cause Stored Procedure Recompilation on SQL Server?
What factors should I be aware of that can cause excessive stored procedure recompilation? Examples of the code ... will cause a recompile. See Question&Answers more detail:os...
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performance
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votes
950
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performance - Python - Speed up for converting a categorical variable to it's numerical index
I need to convert a column of categorical variables in a Pandas data frame into a numerical value that ... advance for any thoughts. See Question&Answers more detail:os...
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performance
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803
views
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performance - Supplying 64 bit specific versions of your software
Would I expect to see any performance gain by building my native C++ Client and Server into 64 bit code? What sort ... I'm not sure what else. See Question&Answers more detail:os...
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71.8m
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performance
0
votes
806
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1
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performance - Packing BCD to DPD: How to improve this amd64 assembly routine?
I'm writing a routine to convert between BCD (4 bits per decimal digit) and Densely Packed Decimal (DPD) (10 ... byte 0x6e .size lookup,.-lookup See Question&Answers more detail:os...
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performance
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votes
948
views
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performance - Javascript improved native for loop
I have just installed Aptana Studio for development and one of the available commands for Javascript is Insert a for ... than the first one? See Question&Answers more detail:os...
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performance
0
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893
views
1
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performance - When does `modify` copy the vector?
From https://hackage.haskell.org/package/vector-0.12.0.1/docs/Data-Vector.html#v:modify Apply a destructive ... will be modified in place? See Question&Answers more detail:os...
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71.8m
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performance
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votes
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performance - C# - For-loop internals
a quick, simple question from me about for-loops. Situation I'm currently writing some high-performance code when I ... under my happy rock! :) See Question&Answers more detail:os...
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902
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performance - Why do SSE instructions preserve the upper 128-bit of the YMM registers?
It seems to be a recurring problem that many Intel processors (up until Skylake, unless I'm wrong) exhibit ... registers? Is it ever useful? See Question&Answers more detail:os...
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performance - Algorithm to find max cost path of length N in matrix, from [0,0] to last row
I have a n*n matrix, where each element represents an integer. Starting in [0,0] I have to find the path ... Guimar?es, http://ideone.com/0iLS2 See Question&Answers more detail:os...
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