$ mvn clean verify -B --no-transfer-progress -DskipPerformanceValidation=true [INFO] Scanning for projects... [WARNING] [WARNING] Some problems were encountered while building the effective model for in.virit:svg-visualizations:jar:1.0.1-SNAPSHOT [WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-surefire-plugin is missing. @ line 99, 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 1.0.1-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:1.0.1-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 6.8.0-107-generic Java: 21 (Eclipse Adoptium) Architecture: amd64 === Baseline Info === Last Updated: 2026-04-11T06:26:20.795302058Z Baseline CPU: AMD EPYC-Rome Processor Baseline OS: Linux Loaded 948423 weather records for performance testing 06:27:04.504 [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 | 1.85 ms | 1.68 ms | 1.12 ms 1,000 | 2.60 ms | 1.37 ms | 1.55 ms 10,000 | 10.55 ms | 3.30 ms | 5.81 ms 49,871 | 27.31 ms | 5.41 ms | 24.72 ms 97,643 | 48.39 ms | 5.50 ms | 3.66 ms 495,995 | 253.72 ms | 50.31 ms | 25.46 ms 944,282 | 460.33 ms | 96.71 ms | 86.93 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 | 687.5 µs | 1.33 ms | 2.02 ms 10,000 | 1.75 ms | 799.7 µs | 2.55 ms 50,000 | 7.91 ms | 746.4 µs | 8.65 ms 100,000 | 5.23 ms | 875.0 µs | 6.11 ms 500,000 | 20.91 ms | 614.1 µs | 21.53 ms 948,423 | 41.12 ms | 638.1 µs | 41.76 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 | 4.74 ms ( 0.6x) | 642.1 µs ( 0.8x) | 604.1 µs ( 0.9x) 2x | 19,996 | 9.33 ms ( 1.3x) | 1.15 ms ( 1.4x) | 1.19 ms ( 1.9x) 5x | 49,871 | 20.55 ms ( 2.8x) | 2.27 ms ( 2.7x) | 1.82 ms ( 2.8x) 10x | 97,643 | 41.02 ms ( 5.5x) | 4.70 ms ( 5.6x) | 3.70 ms ( 5.8x) 20x | 196,569 | 83.28 ms (11.2x) | 9.66 ms (11.5x) | 9.47 ms (14.7x) 50x | 495,995 | 236.55 ms (31.9x) | 34.29 ms (40.9x) | 19.58 ms (30.5x) 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 | 142.5 µs | 5 | 214.3 µs 10,000 | 5 | 527.8 µs | 5 | 499.5 µs 97,643 | 5 | 4.40 ms | 5 | 4.79 ms 495,995 | 5 | 42.85 ms | 5 | 19.86 ms 944,282 | 5 | 101.24 ms | 5 | 65.62 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 | 7.24 ms | 6.96 ms 2 | 9.57 ms | 11.52 ms 3 | 14.98 ms | 14.12 ms 5 | 25.92 ms | 30.54 ms Draw time scales with number of series. === Performance Summary === sparkline.none.100: 1.85 ms (baseline: 1.95 ms, -5.4%) ✓ sparkline.movingAvg.100: 1.68 ms (baseline: 2.23 ms, -24.6%) ✓ sparkline.rdp.100: 1.12 ms (baseline: 1.59 ms, -29.2%) ✓ sparkline.none.1000: 2.60 ms (baseline: 5.72 ms, -54.6%) ✓ sparkline.movingAvg.1000: 1.37 ms (baseline: 2.84 ms, -51.7%) ✓ sparkline.rdp.1000: 1.55 ms (baseline: 3.14 ms, -50.6%) ✓ sparkline.none.10000: 10.55 ms (baseline: 16.55 ms, -36.3%) sparkline.movingAvg.10000: 3.30 ms (baseline: 2.83 ms, +16.4%) ✓ sparkline.rdp.10000: 5.81 ms (baseline: 7.41 ms, -21.7%) ✓ sparkline.none.50000: 27.31 ms (baseline: 35.98 ms, -24.1%) ⚠️ sparkline.movingAvg.50000: 5.41 ms (baseline: 3.25 ms, +66.4%) ✓ sparkline.rdp.50000: 24.72 ms (baseline: 61.58 ms, -59.9%) sparkline.none.100000: 48.39 ms (baseline: 43.84 ms, +10.4%) ✓ sparkline.movingAvg.100000: 5.50 ms (baseline: 6.45 ms, -14.8%) ✓ sparkline.rdp.100000: 3.66 ms (baseline: 5.65 ms, -35.3%) sparkline.none.500000: 253.72 ms (baseline: 253.60 ms, +0.0%) ⚠️ sparkline.movingAvg.500000: 50.31 ms (baseline: 30.62 ms, +64.3%) ⚠️ sparkline.rdp.500000: 25.46 ms (baseline: 18.85 ms, +35.1%) sparkline.none.948423: 460.33 ms (baseline: 447.45 ms, +2.9%) sparkline.movingAvg.948423: 96.71 ms (baseline: 91.77 ms, +5.4%) ⚠️ sparkline.rdp.948423: 86.93 ms (baseline: 67.86 ms, +28.1%) ⚠️ windrose.aggregation.1000: 687.5 µs (baseline: 463.6 µs, +48.3%) ⚠️ windrose.draw.1000: 1.33 ms (baseline: 967.1 µs, +37.3%) ✓ windrose.aggregation.10000: 1.75 ms (baseline: 5.24 ms, -66.6%) ✓ windrose.draw.10000: 799.7 µs (baseline: 1.58 ms, -49.5%) ✓ windrose.aggregation.50000: 7.91 ms (baseline: 12.38 ms, -36.1%) ✓ windrose.draw.50000: 746.4 µs (baseline: 1.49 ms, -49.9%) windrose.aggregation.100000: 5.23 ms (baseline: 4.47 ms, +17.2%) windrose.draw.100000: 875.0 µs (baseline: 816.0 µs, +7.2%) windrose.aggregation.500000: 20.91 ms (baseline: 19.70 ms, +6.2%) windrose.draw.500000: 614.1 µs (baseline: 653.2 µs, -6.0%) windrose.aggregation.948423: 41.12 ms (baseline: 45.25 ms, -9.1%) windrose.draw.948423: 638.1 µs (baseline: 553.9 µs, +15.2%) scaling.none.1x: 4.74 ms (baseline: 5.16 ms, -8.1%) ✓ scaling.movingAvg.1x: 642.1 µs (baseline: 1.13 ms, -43.3%) ✓ scaling.rdp.1x: 604.1 µs (baseline: 723.3 µs, -16.5%) ✓ scaling.none.2x: 9.33 ms (baseline: 10.71 ms, -12.9%) scaling.movingAvg.2x: 1.15 ms (baseline: 1.17 ms, -1.4%) ⚠️ scaling.rdp.2x: 1.19 ms (baseline: 814.4 µs, +46.4%) ✓ scaling.none.5x: 20.55 ms (baseline: 23.53 ms, -12.6%) ✓ scaling.movingAvg.5x: 2.27 ms (baseline: 2.99 ms, -24.1%) ✓ scaling.rdp.5x: 1.82 ms (baseline: 2.65 ms, -31.4%) ✓ scaling.none.10x: 41.02 ms (baseline: 53.90 ms, -23.9%) scaling.movingAvg.10x: 4.70 ms (baseline: 4.52 ms, +4.1%) scaling.rdp.10x: 3.70 ms (baseline: 3.77 ms, -2.0%) ✓ scaling.none.20x: 83.28 ms (baseline: 97.36 ms, -14.5%) scaling.movingAvg.20x: 9.66 ms (baseline: 9.14 ms, +5.6%) scaling.rdp.20x: 9.47 ms (baseline: 8.75 ms, +8.2%) scaling.none.50x: 236.55 ms (baseline: 221.24 ms, +6.9%) scaling.movingAvg.50x: 34.29 ms (baseline: 34.45 ms, -0.5%) scaling.rdp.50x: 19.58 ms (baseline: 18.48 ms, +6.0%) ⚠️ multiseries.movingAvg.1series: 7.24 ms (baseline: 5.14 ms, +40.8%) ⚠️ multiseries.rdp.1series: 6.96 ms (baseline: 4.23 ms, +64.6%) multiseries.movingAvg.2series: 9.57 ms (baseline: 10.54 ms, -9.2%) ⚠️ multiseries.rdp.2series: 11.52 ms (baseline: 9.41 ms, +22.4%) multiseries.movingAvg.3series: 14.98 ms (baseline: 15.80 ms, -5.1%) multiseries.rdp.3series: 14.12 ms (baseline: 13.33 ms, +5.9%) multiseries.movingAvg.5series: 25.92 ms (baseline: 24.42 ms, +6.1%) ⚠️ multiseries.rdp.5series: 30.54 ms (baseline: 24.01 ms, +27.2%) 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: 32.95 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: 0.013 s -- in org.vaadin.svgvis.unit.WindRoseTest [INFO] Running org.vaadin.svgvis.unit.SvgSparkLineTest [INFO] Tests run: 8, 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: 15.72 s -- in org.vaadin.svgvis.SessionWeightTest [INFO] [INFO] Results: [INFO] [WARNING] Tests run: 23, 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-1.0.1-SNAPSHOT.jar [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 56.768 s [INFO] Finished at: 2026-04-11T06:27:40Z [INFO] ------------------------------------------------------------------------