Find expensive allocations on hot paths

Usage

This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe org.openrewrite.kotlin.performance.FindAllocationsInHotPaths$KtRecipe

If the recipe isn’t available locally, install it with:

mod config recipes jar install io.moderne.recipe:recipes-kotlin:0.2.0

Definition

This recipe runs the following recipes in order.

• Find Regex allocations inside loopsorg.openrewrite.kotlin.performance.FindRegexAllocationsInLoops$KtRecipe
• Find Pattern.compile allocations inside loopsorg.openrewrite.kotlin.performance.FindPatternCompileInLoops$KtRecipe
• Find SimpleDateFormat allocations inside loopsorg.openrewrite.kotlin.performance.FindSimpleDateFormatInLoops$KtRecipe
• Find DateTimeFormatter.ofPattern allocations inside loopsorg.openrewrite.kotlin.performance.FindDateTimeFormatterInLoops$KtRecipe
• Find BigDecimal("...") allocations inside loopsorg.openrewrite.kotlin.performance.FindBigDecimalFromStringInLoops$KtRecipe
• Find BigInteger("...") allocations inside loopsorg.openrewrite.kotlin.performance.FindBigIntegerFromStringInLoops$KtRecipe
• Find BigInteger.valueOf(long) calls inside loopsorg.openrewrite.kotlin.performance.FindBigIntegerValueOfInLoops$KtRecipe
• Find Calendar.getInstance() calls inside loopsorg.openrewrite.kotlin.performance.FindCalendarGetInstanceInLoops$KtRecipe
• Find Locale(...) allocations inside loopsorg.openrewrite.kotlin.performance.FindLocaleConstructionInLoops$KtRecipe
• Find File(...).bufferedReader() calls inside loopsorg.openrewrite.kotlin.performance.FindFileNewBufferedReaderInLoops$KtRecipe
• Find URL("...") allocations inside loopsorg.openrewrite.kotlin.performance.FindURLConstructorInLoops$KtRecipe
• Find URI("...") allocations inside loopsorg.openrewrite.kotlin.performance.FindURIConstructorInLoops$KtRecipe
• Find Base64.getDecoder() calls inside loopsorg.openrewrite.kotlin.performance.FindBase64GetDecoderInLoops$KtRecipe
• Find Charset.forName(...) calls inside loopsorg.openrewrite.kotlin.performance.FindCharsetForNameInLoops$KtRecipe
• Find Optional.get() calls inside loopsorg.openrewrite.kotlin.performance.FindOptionalGetInLoops$KtRecipe
• Find LoggerFactory.getLogger calls inside loopsorg.openrewrite.kotlin.performance.FindLoggerFactoryGetLoggerInLoops$KtRecipe
• Find Class.forName calls inside loopsorg.openrewrite.kotlin.performance.FindClassForNameInLoops$KtRecipe
• Find String.format calls inside loopsorg.openrewrite.kotlin.performance.FindStringFormatInLoops$KtRecipe
• Find MessageDigest.getInstance calls inside loopsorg.openrewrite.kotlin.performance.FindMessageDigestGetInstanceInLoops$KtRecipe
• Find Jackson ObjectMapper() allocations inside loopsorg.openrewrite.kotlin.performance.FindObjectMapperInLoops$KtRecipe
• Find Gson() allocations inside loopsorg.openrewrite.kotlin.performance.FindGsonInLoops$KtRecipe
• Find graphics allocations inside View.onDraworg.openrewrite.kotlin.performance.FindAllocationsInOnDraw$KtRecipe
• Find graphics allocations inside View.onMeasureorg.openrewrite.kotlin.performance.FindAllocationsInOnMeasure$KtRecipe
• Find graphics allocations inside View.onLayoutorg.openrewrite.kotlin.performance.FindAllocationsInOnLayout$KtRecipe

Data tables

Structured output this recipe can produce.

• Source files that had resultsSource files that were modified by the recipe run.org.openrewrite.table.SourcesFileResults
• Source files that had search resultsSearch results that were found during the recipe run.org.openrewrite.table.SearchResults
• Source files that errored on a recipeThe details of all errors produced by a recipe run.org.openrewrite.table.SourcesFileErrors
• Recipe performanceStatistics used in analyzing the performance of recipes.org.openrewrite.table.RecipeRunStats