From https://github.com/viritin/svg-visualizations * branch main -> FETCH_HEAD Already on 'main' Your branch is up to date with 'origin/main'. HEAD is now at 939d4f0 [maven-release-plugin] prepare for next development iteration $ mvn versions:set-property -Dproperty=vaadin.version -DnewVersion=25.2-SNAPSHOT -DgenerateBackupPoms=false -B --no-transfer-progress --settings /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/settings.xml java 25-tem is already installed. Using java version 25-tem in this shell. [INFO] Scanning for projects... [WARNING] [WARNING] Some problems were encountered while building the effective model for in.virit:svg-visualizations:jar:1.1.1-SNAPSHOT [WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-surefire-plugin is missing. @ line 100, column 21 [WARNING] [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build. [WARNING] [WARNING] For this reason, future Maven versions might no longer support building such malformed projects. [WARNING] [INFO] [INFO] --------------------< in.virit:svg-visualizations >--------------------- [INFO] Building svg-vizualizations 1.1.1-SNAPSHOT [INFO] from pom.xml [INFO] --------------------------------[ jar ]--------------------------------- [INFO] [INFO] --- versions:2.21.0:set-property (default-cli) @ svg-visualizations --- [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.272 s [INFO] Finished at: 2026-08-09T10:42:38Z [INFO] ------------------------------------------------------------------------ $ mvn versions:set -DnewVersion=25.2-SNAPSHOT -DartifactId=vaadin-bom -DgenerateBackupPoms=false -B --no-transfer-progress --settings /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/settings.xml java 25-tem is already installed. Using java version 25-tem in this shell. [INFO] Scanning for projects... [WARNING] [WARNING] Some problems were encountered while building the effective model for in.virit:svg-visualizations:jar:1.1.1-SNAPSHOT [WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-surefire-plugin is missing. @ line 100, column 21 [WARNING] [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build. [WARNING] [WARNING] For this reason, future Maven versions might no longer support building such malformed projects. [WARNING] [INFO] [INFO] --------------------< in.virit:svg-visualizations >--------------------- [INFO] Building svg-vizualizations 1.1.1-SNAPSHOT [INFO] from pom.xml [INFO] --------------------------------[ jar ]--------------------------------- [INFO] [INFO] --- versions:2.21.0:set (default-cli) @ svg-visualizations --- [INFO] Searching for local aggregator root... [INFO] Local aggregation root: /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations [INFO] Processing change of in.virit:vaadin-bom:1.1.1-SNAPSHOT -> 25.2-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.535 s [INFO] Finished at: 2026-08-09T10:42:45Z [INFO] ------------------------------------------------------------------------ $ mvn clean verify -B --no-transfer-progress --settings /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/settings.xml -DskipPerformanceValidation=true java 25-tem is already installed. Using java version 25-tem in this shell. [INFO] Scanning for projects... [WARNING] [WARNING] Some problems were encountered while building the effective model for in.virit:svg-visualizations:jar:1.1.1-SNAPSHOT [WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-surefire-plugin is missing. @ line 100, column 21 [WARNING] [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build. [WARNING] [WARNING] For this reason, future Maven versions might no longer support building such malformed projects. [WARNING] [INFO] [INFO] --------------------< in.virit:svg-visualizations >--------------------- [INFO] Building svg-vizualizations 1.1.1-SNAPSHOT [INFO] from pom.xml [INFO] --------------------------------[ jar ]--------------------------------- [INFO] [INFO] --- clean:3.2.0:clean (default-clean) @ svg-visualizations --- [INFO] Deleting /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/target [INFO] [INFO] --- flatten:1.7.0:clean (flatten.clean) @ svg-visualizations --- [INFO] Deleting /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/.flattened-pom.xml [INFO] [INFO] --- resources:3.3.1:resources (default-resources) @ svg-visualizations --- [INFO] skip non existing resourceDirectory /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/src/main/resources [INFO] [INFO] --- flatten:1.7.0:flatten (flatten) @ svg-visualizations --- [INFO] Generating flattened POM of project in.virit:svg-visualizations:jar:1.1.1-SNAPSHOT... [INFO] [INFO] --- compiler:3.13.0:compile (default-compile) @ svg-visualizations --- [INFO] Recompiling the module because of changed source code. [INFO] Compiling 2 source files with javac [debug release 21] to target/classes [INFO] [INFO] --- resources:3.3.1:testResources (default-testResources) @ svg-visualizations --- [INFO] skip non existing resourceDirectory /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/src/test/resources [INFO] [INFO] --- compiler:3.13.0:testCompile (default-testCompile) @ svg-visualizations --- [INFO] Recompiling the module because of changed dependency. [INFO] Compiling 13 source files with javac [debug release 21] to target/test-classes [INFO] /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/src/test/java/org/vaadin/svgvis/it/SvgVisualizationsIT.java: /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/src/test/java/org/vaadin/svgvis/it/SvgVisualizationsIT.java uses or overrides a deprecated API. [INFO] /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/src/test/java/org/vaadin/svgvis/it/SvgVisualizationsIT.java: Recompile with -Xlint:deprecation for details. [INFO] [INFO] --- surefire:3.2.5:test (default-test) @ svg-visualizations --- [INFO] Using auto detected provider org.apache.maven.surefire.junitplatform.JUnitPlatformProvider [INFO] [INFO] ------------------------------------------------------- [INFO] T E S T S [INFO] ------------------------------------------------------- [INFO] Running org.vaadin.svgvis.RenderingPerformanceTest Loaded 948423 weather records === System Information === CPU Model: AMD EPYC-Rome Processor CPU Cores: 4 OS: Linux 6.8.0-137-generic Java: 25 (Eclipse Adoptium) Architecture: amd64 === Baseline Info === Last Updated: 2026-08-09T09:39:05.771940641Z Baseline CPU: AMD EPYC-Rome Processor Baseline OS: Linux Loaded 948423 weather records for performance testing 10:43:25.393 [main] INFO com.vaadin.flow.server.DefaultDeploymentConfiguration -- Vaadin is running in production mode. === SparkLine draw() CPU Time Analysis === Measuring time to execute draw() with real components... Data Points | No Smoothing | Moving Avg | RDP -------------|----------------|----------------|---------------- 100 | 1.65 ms | 6.83 ms | 2.61 ms 1,000 | 4.29 ms | 4.08 ms | 1.88 ms 10,000 | 30.19 ms | 2.57 ms | 4.05 ms 49,871 | 21.05 ms | 4.78 ms | 22.27 ms 97,643 | 61.69 ms | 8.77 ms | 101.68 ms 495,995 | 252.66 ms | 79.91 ms | 28.11 ms 944,282 | 497.91 ms | 168.89 ms | 126.87 ms Note: Times include full SVG element creation and DOM operations. === WindRose draw() CPU Time Analysis === Measuring time to aggregate and draw WindRose with real components... Input Records | Aggregation | Draw | Total --------------|----------------|----------------|---------------- 1,000 | 442.6 µs | 1.53 ms | 1.97 ms 10,000 | 1.80 ms | 3.13 ms | 4.93 ms 50,000 | 26.26 ms | 2.15 ms | 28.41 ms 100,000 | 8.72 ms | 2.74 ms | 11.46 ms 500,000 | 71.07 ms | 3.92 ms | 74.99 ms 948,423 | 52.45 ms | 670.9 µs | 53.12 ms Note: WindRose aggregation is O(n), but draw is O(sectors) = O(1). === Scaling Behavior Analysis === Comparing how draw time scales with data size... Multiplier | Data Size | NONE (rel) | MovingAvg (rel) | RDP (rel) -----------|--------------|----------------|-----------------|---------------- 1x | 10,000 | 8.38 ms ( 1.1x) | 1.20 ms ( 0.4x) | 1.63 ms ( 2.3x) 2x | 19,996 | 9.06 ms ( 1.2x) | 1.92 ms ( 0.6x) | 1.59 ms ( 2.3x) 5x | 49,871 | 24.13 ms ( 3.3x) | 3.70 ms ( 1.2x) | 2.47 ms ( 3.5x) 10x | 97,643 | 65.31 ms ( 8.9x) | 8.94 ms ( 2.8x) | 8.66 ms (12.4x) 20x | 196,569 | 119.84 ms (16.4x) | 9.01 ms ( 2.8x) | 17.37 ms (24.9x) 50x | 495,995 | 250.70 ms (34.4x) | 49.57 ms (15.6x) | 71.97 ms (103.3x) Ideal O(n): time should grow linearly with multiplier. With smoothing: time for SVG creation is ~constant after reduction. === Output Size vs Draw Time === Comparing output point count and actual draw time... Input Points | MA Elements | MA Draw Time | RDP Elements | RDP Draw Time -------------|-------------|----------------|--------------|---------------- 1,000 | 5 | 164.8 µs | 5 | 1.32 ms 10,000 | 5 | 1.13 ms | 5 | 2.02 ms 97,643 | 5 | 4.96 ms | 5 | 9.92 ms 495,995 | 5 | 45.10 ms | 5 | 42.93 ms 944,282 | 5 | 165.83 ms | 5 | 86.14 ms Element count reflects SVG complexity after smoothing. === Multi-Series SparkLine Draw Time === Measuring draw time with multiple data series... Series Count | Moving Avg | RDP -------------|----------------|---------------- 1 | 10.62 ms | 6.49 ms 2 | 14.99 ms | 31.65 ms 3 | 21.61 ms | 24.99 ms 5 | 28.73 ms | 36.36 ms Draw time scales with number of series. === Performance Summary === sparkline.none.100: 1.65 ms (baseline: 1.42 ms, +16.3%) ⚠️ sparkline.movingAvg.100: 6.83 ms (baseline: 1.69 ms, +304.9%) ⚠️ sparkline.rdp.100: 2.61 ms (baseline: 1.01 ms, +158.3%) sparkline.none.1000: 4.29 ms (baseline: 3.93 ms, +9.2%) ⚠️ sparkline.movingAvg.1000: 4.08 ms (baseline: 1.22 ms, +235.9%) ⚠️ sparkline.rdp.1000: 1.88 ms (baseline: 1.29 ms, +46.4%) ⚠️ sparkline.none.10000: 30.19 ms (baseline: 8.39 ms, +259.7%) ✓ sparkline.movingAvg.10000: 2.57 ms (baseline: 2.85 ms, -10.1%) sparkline.rdp.10000: 4.05 ms (baseline: 3.76 ms, +7.7%) sparkline.none.50000: 21.05 ms (baseline: 21.80 ms, -3.4%) ⚠️ sparkline.movingAvg.50000: 4.78 ms (baseline: 2.71 ms, +76.6%) ✓ sparkline.rdp.50000: 22.27 ms (baseline: 51.53 ms, -56.8%) ⚠️ sparkline.none.100000: 61.69 ms (baseline: 36.51 ms, +69.0%) ⚠️ sparkline.movingAvg.100000: 8.77 ms (baseline: 4.75 ms, +84.7%) ⚠️ sparkline.rdp.100000: 101.68 ms (baseline: 9.57 ms, +963.0%) sparkline.none.500000: 252.66 ms (baseline: 210.95 ms, +19.8%) ⚠️ sparkline.movingAvg.500000: 79.91 ms (baseline: 28.80 ms, +177.5%) sparkline.rdp.500000: 28.11 ms (baseline: 28.99 ms, -3.0%) ⚠️ sparkline.none.948423: 497.91 ms (baseline: 359.60 ms, +38.5%) ⚠️ sparkline.movingAvg.948423: 168.89 ms (baseline: 93.60 ms, +80.4%) ⚠️ sparkline.rdp.948423: 126.87 ms (baseline: 61.81 ms, +105.2%) windrose.aggregation.1000: 442.6 µs (baseline: 429.4 µs, +3.1%) ⚠️ windrose.draw.1000: 1.53 ms (baseline: 1.11 ms, +37.7%) windrose.aggregation.10000: 1.80 ms (baseline: 1.70 ms, +6.0%) ⚠️ windrose.draw.10000: 3.13 ms (baseline: 676.0 µs, +362.8%) ⚠️ windrose.aggregation.50000: 26.26 ms (baseline: 8.59 ms, +205.7%) ⚠️ windrose.draw.50000: 2.15 ms (baseline: 775.9 µs, +177.4%) ⚠️ windrose.aggregation.100000: 8.72 ms (baseline: 4.80 ms, +81.8%) ⚠️ windrose.draw.100000: 2.74 ms (baseline: 2.17 ms, +26.4%) ⚠️ windrose.aggregation.500000: 71.07 ms (baseline: 24.15 ms, +194.2%) ⚠️ windrose.draw.500000: 3.92 ms (baseline: 598.6 µs, +555.3%) ⚠️ windrose.aggregation.948423: 52.45 ms (baseline: 41.14 ms, +27.5%) ⚠️ windrose.draw.948423: 670.9 µs (baseline: 544.8 µs, +23.1%) ⚠️ scaling.none.1x: 8.38 ms (baseline: 3.59 ms, +133.7%) ⚠️ scaling.movingAvg.1x: 1.20 ms (baseline: 619.9 µs, +93.1%) ⚠️ scaling.rdp.1x: 1.63 ms (baseline: 577.6 µs, +182.4%) ⚠️ scaling.none.2x: 9.06 ms (baseline: 6.78 ms, +33.6%) ⚠️ scaling.movingAvg.2x: 1.92 ms (baseline: 1.14 ms, +68.8%) ⚠️ scaling.rdp.2x: 1.59 ms (baseline: 939.2 µs, +69.1%) ⚠️ scaling.none.5x: 24.13 ms (baseline: 16.38 ms, +47.3%) ⚠️ scaling.movingAvg.5x: 3.70 ms (baseline: 2.62 ms, +41.5%) scaling.rdp.5x: 2.47 ms (baseline: 2.13 ms, +16.0%) ⚠️ scaling.none.10x: 65.31 ms (baseline: 31.41 ms, +107.9%) ⚠️ scaling.movingAvg.10x: 8.94 ms (baseline: 5.48 ms, +63.1%) ⚠️ scaling.rdp.10x: 8.66 ms (baseline: 4.37 ms, +98.2%) ⚠️ scaling.none.20x: 119.84 ms (baseline: 75.14 ms, +59.5%) scaling.movingAvg.20x: 9.01 ms (baseline: 9.80 ms, -8.1%) ⚠️ scaling.rdp.20x: 17.37 ms (baseline: 9.54 ms, +82.0%) ⚠️ scaling.none.50x: 250.70 ms (baseline: 194.68 ms, +28.8%) ⚠️ scaling.movingAvg.50x: 49.57 ms (baseline: 40.11 ms, +23.6%) ⚠️ scaling.rdp.50x: 71.97 ms (baseline: 25.20 ms, +185.6%) ⚠️ multiseries.movingAvg.1series: 10.62 ms (baseline: 8.25 ms, +28.8%) ⚠️ multiseries.rdp.1series: 6.49 ms (baseline: 5.17 ms, +25.5%) ⚠️ multiseries.movingAvg.2series: 14.99 ms (baseline: 8.76 ms, +71.2%) ⚠️ multiseries.rdp.2series: 31.65 ms (baseline: 13.84 ms, +128.7%) ⚠️ multiseries.movingAvg.3series: 21.61 ms (baseline: 12.51 ms, +72.7%) ⚠️ multiseries.rdp.3series: 24.99 ms (baseline: 18.09 ms, +38.1%) ⚠️ multiseries.movingAvg.5series: 28.73 ms (baseline: 23.26 ms, +23.5%) multiseries.rdp.5series: 36.36 ms (baseline: 33.66 ms, +8.0%) Baseline saved to: /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/performance-baseline.properties [WARNING] Tests run: 6, Failures: 0, Errors: 0, Skipped: 1, Time elapsed: 45.68 s -- in org.vaadin.svgvis.RenderingPerformanceTest [INFO] Running org.vaadin.svgvis.unit.WindRoseTest [INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.027 s -- in org.vaadin.svgvis.unit.WindRoseTest [INFO] Running org.vaadin.svgvis.unit.SvgSparkLineTest [INFO] Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.039 s -- in org.vaadin.svgvis.unit.SvgSparkLineTest [INFO] Running org.vaadin.svgvis.SessionWeightTest Loaded 948423 weather records for testing === DataPoints Session Weight Analysis === Measuring serialized size of SvgSparkLine.DataPoint lists... Data points: 100 -> Serialized: 2.3 KB (23.2 bytes/point) Data points: 1,000 -> Serialized: 21.6 KB (22.1 bytes/point) Data points: 10,000 -> Serialized: 215.0 KB (22.0 bytes/point) Data points: 49,871 -> Serialized: 1.0 MB (22.0 bytes/point) Data points: 97,643 -> Serialized: 2.0 MB (22.0 bytes/point) Data points: 495,995 -> Serialized: 10.4 MB (22.0 bytes/point) Data points: 944,282 -> Serialized: 19.8 MB (22.0 bytes/point) === WindRose Data Session Weight Analysis === WindRose aggregates data into fixed sectors, so weight is constant. Input records: 100 -> Aggregated to 16 sectors -> Serialized: 505 B Input records: 1,000 -> Aggregated to 16 sectors -> Serialized: 505 B Input records: 10,000 -> Aggregated to 16 sectors -> Serialized: 505 B Input records: 50,000 -> Aggregated to 16 sectors -> Serialized: 505 B Input records: 100,000 -> Aggregated to 16 sectors -> Serialized: 505 B Input records: 500,000 -> Aggregated to 16 sectors -> Serialized: 505 B Input records: 948,423 -> Aggregated to 16 sectors -> Serialized: 505 B Conclusion: WindRose weight is ~constant regardless of input size! === Session Weight Growth Comparison === Comparing growth patterns of different data storage approaches... Size | Raw Data | Before Draw | After Smooth | After Draw | WindRose -------------|----------------|----------------|----------------|----------------|---------- 1,000 | 259.4 KB | 21.6 KB | 1.2 KB | 58 B | 155 B 10,000 | 2.5 MB | 215.0 KB | 1.2 KB | 58 B | 155 B 100,000 | 25.3 MB | 2.1 MB | 1.2 KB | 58 B | 155 B 948,423 | 239.7 MB | 19.9 MB | 1.2 KB | 58 B | 155 B Key insight: After draw(), SparkLine clears all data - session weight is ~0! Data is only needed during draw(), SVG elements retain the visualization. === Raw Weather Data Session Weight === For comparison: size of raw RawWeatherStationData objects... Raw records: 100 -> Serialized: 26.4 KB (271 bytes/record) Raw records: 1,000 -> Serialized: 259.4 KB (266 bytes/record) Raw records: 10,000 -> Serialized: 2.5 MB (265 bytes/record) Raw records: 50,000 -> Serialized: 12.6 MB (265 bytes/record) Raw records: 100,000 -> Serialized: 25.3 MB (265 bytes/record) Raw records: 500,000 -> Serialized: 126.4 MB (265 bytes/record) Raw records: 948,423 -> Serialized: 239.7 MB (265 bytes/record) === RDP Algorithm Point Reduction === Measuring how RDP reduces data points while preserving shape... Input Points | RDP Points | Reduction | Serialized Size -------------|------------|-----------|---------------- 100 | 40 | 60.0% | 997 B 1,000 | 132 | 86.8% | 3.0 KB 10,000 | 84 | 99.2% | 1.9 KB 49,871 | 94 | 99.8% | 2.1 KB 97,643 | 95 | 99.9% | 2.2 KB 944,282 | 187 | 100.0% | 4.1 KB RDP preserves shape-significant points, so reduction varies with data complexity. [INFO] Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 22.35 s -- in org.vaadin.svgvis.SessionWeightTest [INFO] [INFO] Results: [INFO] [WARNING] Tests run: 24, Failures: 0, Errors: 0, Skipped: 1 [INFO] [INFO] [INFO] --- jar:3.5.0:jar (default-jar) @ svg-visualizations --- [INFO] Building jar: /home/ghrunner/actions-runner/_work/vaadin-ecosystem-build/vaadin-ecosystem-build/work/svg-visualizations/target/svg-visualizations-1.1.1-SNAPSHOT.jar [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 01:19 min [INFO] Finished at: 2026-08-09T10:44:15Z [INFO] ------------------------------------------------------------------------