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=25.3-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: 1.253 s [INFO] Finished at: 2026-08-08T18:30:32Z [INFO] ------------------------------------------------------------------------ $ mvn versions:set -DnewVersion=25.3-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 -> 25.3-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1.066 s [INFO] Finished at: 2026-08-08T18:30:35Z [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 6.8.0-136-generic Java: 25 (Eclipse Adoptium) Architecture: amd64 === Baseline Info === Last Updated: 2026-08-08T16:43:21.745507640Z Baseline CPU: AMD EPYC-Rome Processor Baseline OS: Linux Loaded 948423 weather records for performance testing 18:30:58.573 [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 | 2.97 ms | 2.54 ms | 874.2 µs 1,000 | 4.61 ms | 2.89 ms | 2.79 ms 10,000 | 11.87 ms | 2.13 ms | 10.68 ms 49,871 | 19.38 ms | 2.59 ms | 4.65 ms 97,643 | 33.59 ms | 4.86 ms | 4.71 ms 495,995 | 200.27 ms | 31.79 ms | 31.49 ms 944,282 | 353.73 ms | 87.95 ms | 95.67 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 | 476.5 µs | 749.1 µs | 1.23 ms 10,000 | 2.42 ms | 591.4 µs | 3.01 ms 50,000 | 11.94 ms | 572.6 µs | 12.52 ms 100,000 | 3.90 ms | 567.2 µs | 4.47 ms 500,000 | 17.96 ms | 603.3 µs | 18.57 ms 948,423 | 34.02 ms | 553.2 µs | 34.58 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 | 3.91 ms ( 0.7x) | 1.01 ms ( 1.5x) | 1.35 ms ( 2.1x) 2x | 19,996 | 7.84 ms ( 1.4x) | 1.00 ms ( 1.5x) | 978.9 µs ( 1.5x) 5x | 49,871 | 17.59 ms ( 3.1x) | 2.59 ms ( 3.8x) | 2.24 ms ( 3.5x) 10x | 97,643 | 33.49 ms ( 5.9x) | 4.38 ms ( 6.4x) | 4.05 ms ( 6.4x) 20x | 196,569 | 65.51 ms (11.6x) | 9.25 ms (13.6x) | 9.25 ms (14.6x) 50x | 495,995 | 182.43 ms (32.2x) | 32.51 ms (47.7x) | 25.07 ms (39.5x) 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 | 121.7 µs | 5 | 200.0 µs 10,000 | 5 | 500.5 µs | 5 | 517.9 µs 97,643 | 5 | 4.74 ms | 5 | 5.61 ms 495,995 | 5 | 42.88 ms | 5 | 24.91 ms 944,282 | 5 | 99.13 ms | 5 | 53.33 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 | 6.64 ms | 4.76 ms 2 | 11.40 ms | 17.82 ms 3 | 15.03 ms | 23.43 ms 5 | 28.75 ms | 35.42 ms Draw time scales with number of series. === Performance Summary === sparkline.none.100: 2.97 ms (baseline: 3.04 ms, -2.4%) ⚠️ sparkline.movingAvg.100: 2.54 ms (baseline: 1.44 ms, +76.5%) ✓ sparkline.rdp.100: 874.2 µs (baseline: 1.31 ms, -33.2%) sparkline.none.1000: 4.61 ms (baseline: 4.96 ms, -7.1%) ✓ sparkline.movingAvg.1000: 2.89 ms (baseline: 3.78 ms, -23.5%) ✓ sparkline.rdp.1000: 2.79 ms (baseline: 4.44 ms, -37.1%) ✓ sparkline.none.10000: 11.87 ms (baseline: 32.88 ms, -63.9%) ✓ sparkline.movingAvg.10000: 2.13 ms (baseline: 7.88 ms, -73.0%) ✓ sparkline.rdp.10000: 10.68 ms (baseline: 34.82 ms, -69.3%) ✓ sparkline.none.50000: 19.38 ms (baseline: 38.51 ms, -49.7%) ✓ sparkline.movingAvg.50000: 2.59 ms (baseline: 11.12 ms, -76.7%) ✓ sparkline.rdp.50000: 4.65 ms (baseline: 18.82 ms, -75.3%) ✓ sparkline.none.100000: 33.59 ms (baseline: 71.04 ms, -52.7%) ✓ sparkline.movingAvg.100000: 4.86 ms (baseline: 7.60 ms, -36.1%) ✓ sparkline.rdp.100000: 4.71 ms (baseline: 9.14 ms, -48.4%) ✓ sparkline.none.500000: 200.27 ms (baseline: 295.50 ms, -32.2%) ✓ sparkline.movingAvg.500000: 31.79 ms (baseline: 47.42 ms, -33.0%) ✓ sparkline.rdp.500000: 31.49 ms (baseline: 67.28 ms, -53.2%) ✓ sparkline.none.948423: 353.73 ms (baseline: 511.06 ms, -30.8%) ✓ sparkline.movingAvg.948423: 87.95 ms (baseline: 130.89 ms, -32.8%) ✓ sparkline.rdp.948423: 95.67 ms (baseline: 124.08 ms, -22.9%) ✓ windrose.aggregation.1000: 476.5 µs (baseline: 696.0 µs, -31.5%) ✓ windrose.draw.1000: 749.1 µs (baseline: 1.70 ms, -55.9%) ✓ windrose.aggregation.10000: 2.42 ms (baseline: 4.69 ms, -48.4%) ✓ windrose.draw.10000: 591.4 µs (baseline: 1.90 ms, -69.0%) ✓ windrose.aggregation.50000: 11.94 ms (baseline: 23.70 ms, -49.6%) ✓ windrose.draw.50000: 572.6 µs (baseline: 746.7 µs, -23.3%) ✓ windrose.aggregation.100000: 3.90 ms (baseline: 7.08 ms, -44.9%) windrose.draw.100000: 567.2 µs (baseline: 617.6 µs, -8.2%) windrose.aggregation.500000: 17.96 ms (baseline: 17.12 ms, +4.9%) windrose.draw.500000: 603.3 µs (baseline: 552.1 µs, +9.3%) windrose.aggregation.948423: 34.02 ms (baseline: 34.45 ms, -1.2%) ✓ windrose.draw.948423: 553.2 µs (baseline: 726.2 µs, -23.8%) ✓ scaling.none.1x: 3.91 ms (baseline: 5.02 ms, -22.2%) ✓ scaling.movingAvg.1x: 1.01 ms (baseline: 1.26 ms, -19.9%) ⚠️ scaling.rdp.1x: 1.35 ms (baseline: 659.4 µs, +104.2%) ✓ scaling.none.2x: 7.84 ms (baseline: 11.58 ms, -32.3%) ✓ scaling.movingAvg.2x: 1.00 ms (baseline: 1.12 ms, -10.1%) scaling.rdp.2x: 978.9 µs (baseline: 965.2 µs, +1.4%) ✓ scaling.none.5x: 17.59 ms (baseline: 32.68 ms, -46.2%) ✓ scaling.movingAvg.5x: 2.59 ms (baseline: 5.53 ms, -53.2%) ✓ scaling.rdp.5x: 2.24 ms (baseline: 4.21 ms, -46.9%) ✓ scaling.none.10x: 33.49 ms (baseline: 59.74 ms, -43.9%) scaling.movingAvg.10x: 4.38 ms (baseline: 4.13 ms, +6.0%) scaling.rdp.10x: 4.05 ms (baseline: 4.06 ms, -0.2%) ✓ scaling.none.20x: 65.51 ms (baseline: 109.51 ms, -40.2%) ✓ scaling.movingAvg.20x: 9.25 ms (baseline: 24.80 ms, -62.7%) ✓ scaling.rdp.20x: 9.25 ms (baseline: 13.73 ms, -32.6%) ✓ scaling.none.50x: 182.43 ms (baseline: 269.17 ms, -32.2%) scaling.movingAvg.50x: 32.51 ms (baseline: 32.16 ms, +1.1%) ✓ scaling.rdp.50x: 25.07 ms (baseline: 69.95 ms, -64.2%) ⚠️ multiseries.movingAvg.1series: 6.64 ms (baseline: 4.20 ms, +58.3%) multiseries.rdp.1series: 4.76 ms (baseline: 4.21 ms, +13.1%) multiseries.movingAvg.2series: 11.40 ms (baseline: 9.54 ms, +19.4%) multiseries.rdp.2series: 17.82 ms (baseline: 15.98 ms, +11.5%) ✓ multiseries.movingAvg.3series: 15.03 ms (baseline: 24.21 ms, -37.9%) ✓ multiseries.rdp.3series: 23.43 ms (baseline: 28.86 ms, -18.8%) ✓ multiseries.movingAvg.5series: 28.75 ms (baseline: 43.05 ms, -33.2%) ✓ multiseries.rdp.5series: 35.42 ms (baseline: 55.88 ms, -36.6%) 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: 29.01 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: 0.008 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: 0.013 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: 13.17 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: 47.193 s [INFO] Finished at: 2026-08-08T18:31:29Z [INFO] ------------------------------------------------------------------------