Questions tagged [performance]

86

votes

8

answers

Fastest way to strip all non-printable characters from a Java String

asked 2011-08-23T13:10:54.123

30

votes

2

answers

What are the rules for the "Ω(n log n) barrier" for sorting algorithms?

performance algorithm sorting big-o lower-bound

asked 2011-08-23T01:07:23.313

10

votes

2

answers

BitBlt performance with Aero enabled

c++ performance winapi bitblt

asked 2011-08-22T22:56:05.420

33

votes

6

answers

Performance of variable expansion vs. sprintf in PHP

php string performance printf variable-expansion

asked 2011-08-22T12:14:52.233

58

votes

3

answers

What is the best macro-benchmarking tool / framework to measure a single-threaded complex algorithm in Java?

java monitoring performance

asked 2011-08-22T10:36:25.190

95

votes

4

answers

Why are loops slow in R compared to apply?

performance r apply

asked 2011-08-22T02:59:46.383

45

votes

7

answers

Performance difference between a wild card import and the required class import

java import performance

asked 2011-08-19T23:16:03.813

44

votes

11

answers

How to generate a secure random alphanumeric string in Java efficiently?

java algorithm security performance

asked 2011-08-18T17:35:28.227

24

votes

4

answers

faster membership testing in python than set()

python performance set fastq

asked 2011-08-18T15:47:50.093

10

votes

4

answers

Performance improvement Calculation mumbo jumbo

performance performancecounter performance-testing

asked 2011-08-16T22:05:14.483

106

votes

8

answers

Python: get a dict from a list based on something inside the dict

python performance list dictionary

asked 2011-08-16T13:53:25.280

15

votes

5

answers

Can defining a lot of constants cause performance or memory problems?

php performance memory

asked 2011-08-15T06:11:41.820

29

votes

2

answers

Why is my custom MySQL function so much slower than inlining same in query?

mysql performance user-defined-functions

asked 2011-08-12T00:05:37.417

9

votes

2

answers

Haskell - simple way to cache a function call

performance haskell

asked 2011-08-10T20:11:18.733

23

votes

6

answers

Is it ok to have an array or list returned as a property in .NET?

c# .net performance coding-style

asked 2011-08-10T19:48:18.253

15

votes

5

answers

Is the &method(:method_name) idiom bad for performance in Ruby?

ruby performance

asked 2011-08-07T23:53:42.277

10

votes

6

answers

High-performance multi-tier tag filtering

php sql performance join large-data

asked 2011-08-05T18:03:50.680

320

votes

2

answers

Is it safe to shallow clone with --depth 1, create commits, and pull updates again?

performance git git-clone

asked 2011-08-04T13:02:41.587

12

votes

5

answers

Does one of these use more resources than the other?

.net performance

asked 2011-08-02T22:49:51.340

28

votes

4

answers

Setting up a C# application for max performance build

c# .net visual-studio performance

asked 2011-08-02T12:11:43.400

36

votes

9

answers

Java performance: true vs. Boolean.TRUE

java performance boolean memory-footprint

asked 2011-08-02T11:49:44.500

14

votes

4

answers

Are there any usable path-finding libraries for python?

python c performance path-finding

asked 2011-08-01T11:43:44.620

11

votes

5

answers

Is there any performance difference with ++i vs i += 1 in C#?

c# performance increment

asked 2011-07-31T13:05:29.933

13

votes

4

answers

What is the best standard data structure to build a Graph?

c++ data-structures graph performance

asked 2011-07-29T19:51:03.410

42

votes

8

answers

Is it inefficient to pass large objects as parameters in Java?

java performance

asked 2011-07-29T08:38:50.067

23

votes

4

answers

JavaScript Performance Long Running Tasks

javascript performance recursion

asked 2011-07-28T19:13:39.847

13

votes

2

answers

SQL Server BIGINT or DECIMAL(18,0) for primary key

sql sql-server performance sql-server-2005 types

asked 2011-07-27T01:03:48.597

11

votes

4

answers

MySQL database connection not closed: what will happen?

php mysql database performance

asked 2011-07-24T19:52:07.237

10

votes

2

answers

Mixing python with a faster language for optimization in GAE

java python performance google-app-engine go

asked 2011-07-24T13:43:44.180

12

votes

2

answers

Performance issues with repeated calls to ConfigurationManager.AppSettings to get appsetting values?

.net performance appsettings

asked 2011-07-22T06:23:47.750

9

votes

2

answers

Android - How can I measure performance of ListView and other Views?

android performance listview frame-rate

asked 2011-07-21T21:42:07.220

115

votes

7

answers

Map.clear() vs new Map : Which one will be better?

java android performance collections

asked 2011-07-20T06:31:43.420

9

votes

5

answers

Can code running in a background thread be faster than in the main VCL thread in Delphi?

multithreading performance delphi vcl timing

asked 2011-07-19T03:54:42.033

177

votes

8

answers

Fast check for NaN in NumPy

python performance numpy nan

asked 2011-07-18T17:10:05.480

12

votes

1

answers

When is it worthwhile to cache UIImage resources?

iphone objective-c performance uiimage

asked 2011-07-15T20:35:20.207

12

votes

6

answers

Most efficient algorithm for determining if X out of N inputs are true

algorithm language-agnostic performance

asked 2011-07-14T14:59:36.087

14

votes

5

answers

MySQL database backup: performance issues

performance backup mysql database-backups

asked 2011-07-13T16:44:47.630

9

votes

4

answers

what is the highest performance hashing algo available in php when security is NOT at stake?

php performance md5 hash

asked 2011-07-10T06:43:57.983

9

votes

2

answers

Performance difference between int4 and int8 in PostgreSQL on 64 bit server

performance postgresql integer

asked 2011-07-09T05:52:04.413

12

votes

5

answers

Which is better? Between using image file and draw vector shape

wpf silverlight performance windows-phone-7 vector

asked 2011-07-07T17:46:06.427

21

votes

2

answers

OpenMP: poor performance of heap arrays (stack arrays work fine)

multithreading performance openmp heap-memory stack-memory

asked 2011-07-07T04:05:48.247

10

votes

1

answers

OpenGL - Will using multiple VBO's slow down rendering?

performance opengl vbo

asked 2011-07-06T18:15:38.073

32

votes

4

answers

Why is numpy.array so slow?

python performance numpy

asked 2011-07-02T20:34:08.507

33

votes

4

answers

Performance of Google's Go?

performance go

asked 2011-07-01T13:24:52.407

20

votes

2

answers

Is an empty function called at all in optimised code?

c++ optimization performance runtime

asked 2011-07-01T11:39:42.567

20

votes

5

answers

Why is this an Index Scan and not a Index Seek?

performance t-sql sql-server-2008 indexing sql-execution-plan

asked 2011-06-30T00:51:21.893

15

votes

2

answers

Is "SELECT COUNT(column)" faster/slower than "SELECT COUNT(*)"?

performance sql-server-2008 join count

asked 2011-06-29T16:05:34.770

22

votes

5

answers

Fast Data structure for finding strict subsets (from a given list)

algorithm performance data-structures set

asked 2011-06-28T20:00:27.290

13

votes

3

answers

Is there a fast way to invert a matrix in Matlab?

algorithm matlab matrix performance matrix-inverse

asked 2011-06-28T15:50:33.763

19

votes

5

answers

Why do .net languages vary in performance?

c# .net performance programming-languages

asked 2011-06-28T15:40:55.913

Questions tagged performance