[Bug] dynamic data & time axis without showSymbol memory leak

[JessonLiou]

Version

5.5.0

Link to Minimal Reproduction

https://echarts.apache.org/examples/en/editor.html?c=dynamic-data2&code=GYVwdgxgLglg9mABAJwIZgCZwLYBFVSoAUAlIgN4BQiiYcA7ogLy0Cmj-UrRA1HYz0QJW-AJ4kA3NUQA3VABsQrZrIVLEggLIEAFgDo0mHKUQAqRACYAjIgC0iKwAYpNZKyghkSKjRphU2KwAXLQMelBwAMpQyDBgAOakADTSNHKKwYgA2qm-Wfx68e4AYiDy8gCarKjIyaH0he6aCFA6JoJWSfWNUJzcJAC6egBWcHFEAOQA9BMkKb6-2q0GcOAYROlKJLkD0gC-UnuU8u6IGASoKlkDUidQ9Spg7Ih9RFYAnO8A7F3vXQDMkmOp2EYhUFgALGZEP8AGyORzQpwI26nTbKFhLfSGLDYEzmZHOSjAODIRAbGqIGAqZxUxAAHgcCNpMB4PDIPjOFz0AAcQABnNo4nCcYgkIFHOA82AIFSc2BQE4hTk0LgADygIQmuFE_mwMAgLwuiAAZIgACowQKIACCapg_Im-3miAicHksB5ytyMRg8SKyC1qHtjpdNBJyGwBC4gcQoEgMqQRB5NQC_I5uRoKbQ2H5KmzaayjhumdUZPOXEez1eBdzej1rCBC1c7k8SdLNArrB6rzIPA7iGmEw0A6IXZ6zTArXaDj7A6HI-bvnHRSgpXKVRq7XniC1i6XiFr_L06KyVl2S6bvj2YcQwYdAAUxlPWLGVb50FaCPAwCFgAp-VYXIjhoG9pDVO0HW9BYoFEHlMgmWBAgmW9-R5eQYCgAAZOJMnfGhBQYP8AKAhYQMQMCaFESD-Wg3xYPgrV0RQ3IACNVkwGpRAAcVQL1skcLoJmRABSCYBlQ9DMJwp46IWQj6GI-RAOA51pEA2JWFo7Jcnw2gAgQ4pUAAa2UUUWKXBiEIwp4LObKYpkQBTIlEbB2PkJTANvTsLhCCtUFUmhdgOShAKgABJF9kHSIh42gH9yQzcNSXJOQyWpFgWQZBwAFYWTZJLl25QUYGAKBSBcIrCF5AUhXQXFRVIK9yOwUQAGEdBqKA9DCgB5aUfyId8NJgLSQhyJc9J8wg_IuUtyKC_YJS6QlJCAA

Steps to Reproduce

1. line chart with dynamic data and time axis
2. without series.showSymbol = false
3. take memory snapshot multi times

Current Behavior

memory rised

Expected Behavior

memory not rise

Environment

- OS: window11
- Browser: chrome 125.0.6422.112
- Framework: vanila js

Any additional comments?

Related issues: #7125, #18865

[helgasoft]

correct observation, can confirm.

cnt = 0;
setInterval(function () { ...
  if (cnt++ % 20 ==0) console.log(performance.memory.usedJSHeapSize);
});

A progress table of usedJSHeapSize change after 180 (20*9) updates.

showSymbol: true	showSymbol: false
130121792	42828236
144218209	47866032
151430246	47950212
156291700	49143991
160956740	50432808
174964166	46047918
180142251	47375168
188515739	48728521
201940791	44206139

However jsHeapSizeLimit is 2,172,649,472 and GC moves in mysterious ways, so I'm not sure if this is a real problem...

[JessonLiou]

In my observation, the memory will keep rising, and can't be released even I trigger GC manually.

[sjcobb]

See related comment / screenshot of JS heap snapshots that I took before my browser tab eventually crashed: https://github.com/apache/echarts/issues/20022#issuecomment-2163282730

[sjcobb]

It seems there was a recent fix related to this! https://github.com/apache/echarts/pull/20161

@plainheart can you confirm, looks like it’ll be in the next ECharts release?

[sjcobb]

It seems there was a recent fix related to this! #20161

@plainheart can you confirm, looks like it’ll be in the next ECharts release?

Pulled in the nightly release with the fix from #20161 and the issue is still present. Browser tab crashes when there are many series with symbols

[plainheart]

@JessonLiou Please check if this issue persists in v5.6.0 and file a new issue if it does.

[plainheart]

Closing this issue since I think this has been fixed in v5.6.0. (#20161)