[Java] Investigate potential performance improvement of compression codec
- 主要语言
- Java
- 星标
- 94
- 派生
- 152
- 平均合并
- 3 天 16 小时
- 30 天内合并 PR
- 11
描述
In response to the discussion in https://github.com/apache/arrow/pull/8949/files#r588046787
There are some performance penalties in the implementation of the compression codecs (e.g. data copying between heap/off-heap data). We need to revise the code to improve the performance.
We should also provide some benchmarks to validate that the performance actually improves.
**Reporter**: [Liya Fan](https://issues.apache.org/jira/browse/ARROW-11901) / @liyafan82
**Note**: *This issue was originally created as [ARROW-11901](https://issues.apache.org/jira/browse/ARROW-11901). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*
贡献指南
调研方向
从压缩 codec 的实现以及链接的 pull request 中的讨论入手,重点关注其中提到的 heap/off-heap 数据复制。为相关 codec 添加基准测试,并使用这些基准测试来验证任何修订后的实现都能提升性能。
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评估
- 技术栈
- java
- 领域
- performance
- Issue 类型
- 重构
- 难度
- 4/5
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- 3-5 天
- 活跃度
- 停滞
- 描述清晰度
- 基本清楚
- 新手友好度
- 35/100