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PR Category
Execute Infrastructure
PR Types
Performance
Description
本PR尝试优化多Stream引入的event相关操作,对CPU调度性能带来的开销。
从图中可以看到:
本PR在炤伍的一个测试case中整个CheckGC有25%的性能受益。
由于PirInterpreter::RecordStreamForGC的cache策略可能影响分布式跨step多流overlap、推理动态切换执行流等场景等场景,添加FLAGS_pir_interpreter_record_stream_for_gc_cache,默认不打开。
之所以暂时没有使用StreamAnalyzer,是因为StreamAnalyzer需要的开发工作量较大。而未来又有“计划显存”策略的构想。暂时没有用StreamAnalyzer优化GC。
Pcard-67164