Skip to content

Reduce allocations in Async$Many and ResultPath on execution hot path #4252

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
andimarek merged 6 commits into from
Feb 19, 2026
Merged

Reduce allocations in Async$Many and ResultPath on execution hot path #4252

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
acc6c10
Avoid redundant array copy in Async$Many for synchronous execution path
andimarek Feb 19, 2026
45d13fc
Make ResultPath.toStringValue lazy and avoid intermediate string allo…
andimarek Feb 19, 2026
659fe34
Add fast-path DataFetcher lookup avoiding FieldCoordinates allocation
andimarek Feb 19, 2026
9a54c18
Merge remote-tracking branch 'origin/master' into async-many-material…
andimarek Feb 19, 2026
4011983
Make fast-path getDataFetcher public and document performance benefit
andimarek Feb 19, 2026
c52498b
Simplify ResultPath.initString() — inlining is unnecessary with lazy …
andimarek Feb 19, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
34 changes: 33 additions & 1 deletion build.gradle
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -156,6 +156,7 @@ dependencies {
// this is needed for the idea jmh plugin to work correctly
jmh 'org.openjdk.jmh:jmh-core:1.37'
jmh 'org.openjdk.jmh:jmh-generator-annprocess:1.37'
jmh 'me.bechberger:ap-loader-all:4.0-10'

// comment this in if you want to run JMH benchmarks from idea
// jmhAnnotationProcessor 'org.openjdk.jmh:jmh-generator-annprocess:1.37'
Expand Down Expand Up @@ -228,7 +229,38 @@ jmh {
includes = [project.property('jmhInclude')]
}
if (project.hasProperty('jmhProfilers')) {
profilers = [project.property('jmhProfilers')]
def profStr = project.property('jmhProfilers') as String
if (profStr.startsWith('async')) {
// Resolve native lib from ap-loader JAR on the jmh classpath
def apJar = configurations.jmh.files.find { it.name.contains('ap-loader') }
if (apJar) {
def proc = ['java', '-jar', apJar.absolutePath, 'agentpath'].execute()
proc.waitFor(10, java.util.concurrent.TimeUnit.SECONDS)
def libPath = proc.text.trim()
if (libPath && new File(libPath).exists()) {
if (profStr == 'async') {
profilers = ["async:libPath=${libPath}"]
} else {
profilers = [profStr.replaceFirst('async:', "async:libPath=${libPath};")]
}
} else {
profilers = [profStr]
}
} else {
profilers = [profStr]
}
} else {
profilers = [profStr]
}
}
if (project.hasProperty('jmhFork')) {
fork = project.property('jmhFork') as int
}
if (project.hasProperty('jmhIterations')) {
iterations = project.property('jmhIterations') as int
}
if (project.hasProperty('jmhWarmupIterations')) {
warmupIterations = project.property('jmhWarmupIterations') as int
}
}

Expand Down
Loading
Loading