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serenity/Userland/Libraries/LibJS
davidot eac3c4c127 LibJS: Use entire array of SimpleIndexedPropertyStorage before growing
A common use case in JS is pushing items in an array in a loop.
A simple test case of 100_000 pushes took around ~20 seconds.
This is due to the fact that any pushed element per definition is beyond
the current size of the array. This meant calling grow_storage_if_needed
which then grew the storage by 25%. But this was done on every single
push, growing the array just a little bigger than its current capacity.

Now we now first use capacity of the array and only grow if the array
is actually full.
This decreases the time for 100_000 to around 0.35 seconds.
One problem is that we never shrink the capacity of the array but this
was already an issue before this.
2022-02-15 00:51:25 +00:00
..
Bytecode LibJS: More properly implement scoping rules in bytecode codegen 2022-02-13 14:41:33 +00:00
Heap LibJS: Remove MarkedValueList in favor of MarkedVector<Value> :^) 2022-02-09 12:25:27 +00:00
Runtime LibJS: Use entire array of SimpleIndexedPropertyStorage before growing 2022-02-15 00:51:25 +00:00
Tests LibJS: Get rid of unnecessary work from canonical_numeric_index_string 2022-02-14 21:06:49 +00:00
AST.cpp LibJS: Replace uses of MarkedValueList with MarkedVector<Value> 2022-02-09 12:25:27 +00:00
AST.h LibJS: Implement ClassExpression::generate_bytecode() 2022-02-13 14:41:33 +00:00
CMakeLists.txt LibJS: Remove MarkedValueList in favor of MarkedVector<Value> :^) 2022-02-09 12:25:27 +00:00
Console.cpp LibJS: Implement console.time/timeLog/timeEnd() methods 2021-12-27 21:44:07 +01:00
Console.h LibJS: Implement console.time/timeLog/timeEnd() methods 2021-12-27 21:44:07 +01:00
CyclicModule.cpp LibJS+Everywhere: Remove VM::exception() and most related functions 2022-02-08 09:12:42 +00:00
CyclicModule.h LibJS: Implement the import assertions proposal 2022-01-30 17:40:20 +00:00
Forward.h LibJS: Remove MarkedValueList in favor of MarkedVector<Value> :^) 2022-02-09 12:25:27 +00:00
Interpreter.cpp LibJS+Everywhere: Remove VM::exception() and most related functions 2022-02-08 09:12:42 +00:00
Interpreter.h LibJS: Replace uses of MarkedValueList with MarkedVector<Value> 2022-02-09 12:25:27 +00:00
Lexer.cpp LibJS: Always inline Lexer::current_code_point() 2022-02-13 14:44:36 +01:00
Lexer.h LibJS: Detect invalid unicode and stop lexing at that point 2021-12-29 16:57:23 +01:00
MarkupGenerator.cpp LibJS+js: Pretty-print Date objects using the ToDateString AO 2022-01-15 20:13:48 +01:00
MarkupGenerator.h Everywhere: Pass AK::StringView by value 2021-11-11 01:27:46 +01:00
Module.cpp LibJS: Add support for JSON modules 2022-01-30 17:40:20 +00:00
Module.h LibWeb: Introduce the Environment Settings Object 2022-02-08 17:47:44 +00:00
Parser.cpp LibJS: Make more use of Token::flystring_value() 2022-02-13 14:44:36 +01:00
Parser.h LibJS: Make more use of Token::flystring_value() 2022-02-13 14:44:36 +01:00
Script.cpp LibJS: Reduce header dependency graph in Realm.h 2022-02-07 19:16:46 +01:00
Script.h LibJS: Add [[HostDefined]] internal slot to Script objects 2022-02-07 19:16:46 +01:00
SourceRange.h LibJS: Add missing headers 2021-10-06 23:52:40 +01:00
SourceTextModule.cpp LibJS+Everywhere: Remove VM::exception() and most related functions 2022-02-08 09:12:42 +00:00
SourceTextModule.h LibJS: Implement the import assertions proposal 2022-01-30 17:40:20 +00:00
SyntaxHighlighter.cpp LibJS: Remove unused header includes 2021-08-01 08:10:16 +02:00
SyntaxHighlighter.h LibWeb+LibSyntax: Implement nested syntax highlighters 2021-06-07 14:45:49 +04:30
SyntheticModule.cpp LibJS: Reduce header dependency graph in Realm.h 2022-02-07 19:16:46 +01:00
SyntheticModule.h LibJS: Add support for JSON modules 2022-01-30 17:40:20 +00:00
Token.cpp LibJS: Disallow '\8' and '\9' in strict mode due to being octal escapes 2021-11-30 17:05:32 +00:00
Token.h LibJS: Add Token::flystring_value() to produce FlyString directly 2022-02-13 14:44:36 +01:00