StackOverflow Questions for Tag: premature-optimization

Flueras Bogdan

Reputation: 9497

Java foreach efficiency

javaperformanceloopsforeachpremature-optimization

Score: 23

Answers: 6

Rogach

Reputation: 27200

Which "if" construct is faster - statement or ternary operator?

javaperformanceif-statementshorthandpremature-optimization

Score: 90

Answers: 6

Jin Kwon

Reputation: 21978

Can I cache getClass.hashCode()?

javajpahashcodepremature-optimization

Score: 1

Answers: 2

oink

Reputation: 1503

Efficiently taking the absolute value of an integer vector in C

coptimizationvectorizationpremature-optimization

Score: 2

Answers: 2

nickf

Reputation: 546035

When is optimisation premature?

optimizationpremature-optimization

Score: 93

Answers: 20

Amessihel

Reputation: 6384

Is it a good practice to instantiate a HashSet from an IEnumerable before using Contains()?

c#performancetime-complexityhashsetpremature-optimization

Score: 2

Answers: 1

Ivan Ivanyuk

Reputation: 342

Does wrapping lock into scope change when lock will be released?

rustpremature-optimization

Score: 1

Answers: 1

user22165515

Reputation:

Is it worth moving `let` out of loop?

rustpremature-optimization

Score: 0

Answers: 1

Punit Patel

Reputation: 9

All possible Combinations for this set of letternumbers

typescriptvariablessetcombinationspremature-optimization

Score: -1

Answers: 1

Elijas Dapšauskas

Reputation: 1237

Should I minimize the usage of db_session in Pony ORM? What is the purpose of db_session?

pythonormdatabase-connectionponyormpremature-optimization

Score: 2

Answers: 1

syimyuzya

Reputation: 13

Is there an example where using React.memo/PureComponent has worse performance than not using it?

reactjsperformancememoizationpremature-optimization

Score: 1

Answers: 1

Jin Kwon

Reputation: 21978

Narrow scope of a variable and performance?

cscopecoding-stylepremature-optimization

Score: 1

Answers: 2

James T

Reputation: 3320

ColdFusion: More efficient structKeyExists() instead of isDefined()

performanceoptimizationcoldfusioncfmlpremature-optimization

Score: 22

Answers: 2

Andy Faibishenko

Reputation: 1181

Are Java static calls more or less expensive than non-static calls?

javaperformancepremature-optimization

Score: 113

Answers: 11

Cheiron

Reputation: 3736

x > -1 vs x >= 0, is there a performance difference

javac++operatorsmicro-optimizationpremature-optimization

Score: 39

Answers: 11

GuruKulki

Reputation: 26418

Calling a getter multiple times or calling once and assigning to a variable?

javapremature-optimization

Score: 20

Answers: 13

Black

Reputation: 332

Object dynamic constness

c++design-patternsobject-poolingpremature-optimization

Score: 0

Answers: 0

Aliaksandr Kazlou

Reputation: 3301

Impact of Java streams from GC perspective or handling short-lived objects by the GC

javaperformancegarbage-collectionjava-streampremature-optimization

Score: 9

Answers: 1

user955249

Reputation:

Why swap doesn't use Xor operation in C++

c++swapxormicro-optimizationpremature-optimization

Score: 13

Answers: 5

autistic

Reputation: 15642

Why don't people use xor swaps?

cswapxorpremature-optimization

Score: 3

Answers: 4

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StackOverflow Questions for Tag: premature-optimization

Java foreach efficiency

Which &quot;if&quot; construct is faster - statement or ternary operator?

Can I cache getClass.hashCode()?

Efficiently taking the absolute value of an integer vector in C

When is optimisation premature?

Is it a good practice to instantiate a HashSet from an IEnumerable before using Contains()?

Does wrapping lock into scope change when lock will be released?

Is it worth moving `let` out of loop?

All possible Combinations for this set of letternumbers

Should I minimize the usage of db_session in Pony ORM? What is the purpose of db_session?

Is there an example where using React.memo/PureComponent has worse performance than not using it?

Narrow scope of a variable and performance?

ColdFusion: More efficient structKeyExists() instead of isDefined()

Are Java static calls more or less expensive than non-static calls?

x &gt; -1 vs x &gt;= 0, is there a performance difference

Calling a getter multiple times or calling once and assigning to a variable?

Object dynamic constness

Impact of Java streams from GC perspective or handling short-lived objects by the GC

Why swap doesn&#39;t use Xor operation in C++

Why don&#39;t people use xor swaps?

Which "if" construct is faster - statement or ternary operator?

x > -1 vs x >= 0, is there a performance difference

Why swap doesn't use Xor operation in C++

Why don't people use xor swaps?