$ 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: 2026-04-13T06:45:44.901843600Z Baseline CPU: AMD EPYC-Rome Processor Baseline OS: Linux Loaded 948423 weather records for performance testing 06:46:28.444 [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 | 3.30 ms | 2.01 ms | 1.31 ms 1,000 | 5.33 ms | 2.08 ms | 2.17 ms 10,000 | 15.39 ms | 3.79 ms | 4.45 ms 49,871 | 32.27 ms | 3.63 ms | 39.75 ms 97,643 | 53.24 ms | 11.26 ms | 5.09 ms 495,995 | 255.66 ms | 44.10 ms | 22.76 ms 944,282 | 414.94 ms | 101.23 ms | 134.60 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 | 514.0 µs | 1.54 ms | 2.05 ms 10,000 | 2.48 ms | 1.33 ms | 3.81 ms 50,000 | 11.01 ms | 1.11 ms | 12.12 ms 100,000 | 4.26 ms | 1.29 ms | 5.55 ms 500,000 | 20.31 ms | 654.3 µs | 20.96 ms 948,423 | 38.28 ms | 704.4 µs | 38.98 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 | 4.35 ms ( 1.0x) | 874.2 µs ( 1.0x) | 999.5 µs ( 1.8x) 2x | 19,996 | 10.43 ms ( 2.5x) | 2.45 ms ( 2.8x) | 1.32 ms ( 2.3x) 5x | 49,871 | 20.17 ms ( 4.8x) | 4.83 ms ( 5.6x) | 1.89 ms ( 3.3x) 10x | 97,643 | 41.87 ms ( 9.9x) | 7.73 ms ( 9.0x) | 3.67 ms ( 6.5x) 20x | 196,569 | 86.16 ms (20.5x) | 16.20 ms (18.8x) | 9.34 ms (16.5x) 50x | 495,995 | 224.79 ms (53.4x) | 51.56 ms (59.9x) | 19.31 ms (34.1x) 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 | 153.7 µs | 5 | 171.8 µs 10,000 | 5 | 698.4 µs | 5 | 452.0 µs 97,643 | 5 | 6.20 ms | 5 | 3.44 ms 495,995 | 5 | 42.65 ms | 5 | 37.44 ms 944,282 | 5 | 112.13 ms | 5 | 44.72 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 | 6.66 ms | 3.40 ms 2 | 10.18 ms | 20.57 ms 3 | 14.23 ms | 19.90 ms 5 | 24.12 ms | 25.69 ms Draw time scales with number of series. === Performance Summary === sparkline.none.100: 3.30 ms (baseline: 3.19 ms, +3.5%) ✓ sparkline.movingAvg.100: 2.01 ms (baseline: 3.45 ms, -41.8%) sparkline.rdp.100: 1.31 ms (baseline: 1.16 ms, +13.5%) ⚠️ sparkline.none.1000: 5.33 ms (baseline: 3.08 ms, +73.2%) ⚠️ sparkline.movingAvg.1000: 2.08 ms (baseline: 1.57 ms, +32.9%) ⚠️ sparkline.rdp.1000: 2.17 ms (baseline: 1.63 ms, +32.8%) sparkline.none.10000: 15.39 ms (baseline: 13.58 ms, +13.3%) ✓ sparkline.movingAvg.10000: 3.79 ms (baseline: 4.90 ms, -22.7%) ✓ sparkline.rdp.10000: 4.45 ms (baseline: 10.85 ms, -59.0%) ⚠️ sparkline.none.50000: 32.27 ms (baseline: 25.92 ms, +24.5%) ✓ sparkline.movingAvg.50000: 3.63 ms (baseline: 4.30 ms, -15.6%) ⚠️ sparkline.rdp.50000: 39.75 ms (baseline: 16.17 ms, +145.9%) ⚠️ sparkline.none.100000: 53.24 ms (baseline: 42.65 ms, +24.8%) ⚠️ sparkline.movingAvg.100000: 11.26 ms (baseline: 7.10 ms, +58.6%) sparkline.rdp.100000: 5.09 ms (baseline: 4.63 ms, +10.0%) sparkline.none.500000: 255.66 ms (baseline: 250.10 ms, +2.2%) ✓ sparkline.movingAvg.500000: 44.10 ms (baseline: 51.75 ms, -14.8%) sparkline.rdp.500000: 22.76 ms (baseline: 20.69 ms, +10.0%) ✓ sparkline.none.948423: 414.94 ms (baseline: 472.04 ms, -12.1%) sparkline.movingAvg.948423: 101.23 ms (baseline: 106.67 ms, -5.1%) ⚠️ sparkline.rdp.948423: 134.60 ms (baseline: 88.89 ms, +51.4%) ✓ windrose.aggregation.1000: 514.0 µs (baseline: 581.2 µs, -11.6%) ⚠️ windrose.draw.1000: 1.54 ms (baseline: 1.06 ms, +44.5%) windrose.aggregation.10000: 2.48 ms (baseline: 2.21 ms, +12.4%) ⚠️ windrose.draw.10000: 1.33 ms (baseline: 805.9 µs, +64.5%) windrose.aggregation.50000: 11.01 ms (baseline: 9.95 ms, +10.6%) ⚠️ windrose.draw.50000: 1.11 ms (baseline: 734.1 µs, +51.0%) windrose.aggregation.100000: 4.26 ms (baseline: 4.52 ms, -5.9%) ⚠️ windrose.draw.100000: 1.29 ms (baseline: 748.9 µs, +72.7%) windrose.aggregation.500000: 20.31 ms (baseline: 21.85 ms, -7.0%) ✓ windrose.draw.500000: 654.3 µs (baseline: 908.8 µs, -28.0%) windrose.aggregation.948423: 38.28 ms (baseline: 41.49 ms, -7.7%) windrose.draw.948423: 704.4 µs (baseline: 699.4 µs, +0.7%) ✓ scaling.none.1x: 4.35 ms (baseline: 6.80 ms, -36.0%) scaling.movingAvg.1x: 874.2 µs (baseline: 881.2 µs, -0.8%) ⚠️ scaling.rdp.1x: 999.5 µs (baseline: 619.7 µs, +61.3%) scaling.none.2x: 10.43 ms (baseline: 10.43 ms, -0.0%) scaling.movingAvg.2x: 2.45 ms (baseline: 2.67 ms, -8.4%) scaling.rdp.2x: 1.32 ms (baseline: 1.31 ms, +1.2%) ✓ scaling.none.5x: 20.17 ms (baseline: 29.75 ms, -32.2%) ⚠️ scaling.movingAvg.5x: 4.83 ms (baseline: 3.68 ms, +31.4%) ✓ scaling.rdp.5x: 1.89 ms (baseline: 2.68 ms, -29.6%) ✓ scaling.none.10x: 41.87 ms (baseline: 54.15 ms, -22.7%) scaling.movingAvg.10x: 7.73 ms (baseline: 6.58 ms, +17.5%) scaling.rdp.10x: 3.67 ms (baseline: 3.41 ms, +7.7%) ✓ scaling.none.20x: 86.16 ms (baseline: 96.20 ms, -10.4%) scaling.movingAvg.20x: 16.20 ms (baseline: 16.00 ms, +1.3%) scaling.rdp.20x: 9.34 ms (baseline: 8.04 ms, +16.3%) scaling.none.50x: 224.79 ms (baseline: 228.01 ms, -1.4%) scaling.movingAvg.50x: 51.56 ms (baseline: 46.50 ms, +10.9%) scaling.rdp.50x: 19.31 ms (baseline: 20.60 ms, -6.2%) multiseries.movingAvg.1series: 6.66 ms (baseline: 6.77 ms, -1.6%) multiseries.rdp.1series: 3.40 ms (baseline: 3.54 ms, -4.1%) ✓ multiseries.movingAvg.2series: 10.18 ms (baseline: 18.87 ms, -46.1%) multiseries.rdp.2series: 20.57 ms (baseline: 21.52 ms, -4.4%) ✓ multiseries.movingAvg.3series: 14.23 ms (baseline: 20.16 ms, -29.4%) ✓ multiseries.rdp.3series: 19.90 ms (baseline: 24.21 ms, -17.8%) ✓ multiseries.movingAvg.5series: 24.12 ms (baseline: 30.17 ms, -20.0%) ✓ multiseries.rdp.5series: 25.69 ms (baseline: 28.66 ms, -10.4%) 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: 32.92 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: 0.012 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: 0.022 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: 16.16 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: 56.995 s [INFO] Finished at: 2026-04-13T06:47:04Z [INFO] ------------------------------------------------------------------------