周报 - 2025-W42
INFO
【LeFlow-legit通知: 未合并MR提醒】 hankswu: —exp_info=“level:user|all|int:164554:1” [mixer] add wait for future https://git.woa.com/ads/main/merge_requests/329919/diffs
hankswu: [mixer][cleanup] 下线过期开关 https://git.woa.com/ads/main/merge_requests/329562/diffs
hankswu: [mixer] —exp_info=“level:user|all|int:165382:1” Mixer耗时优化，FillNoveltyMap 移到回包后 https://git.woa.com/ads/main/merge_requests/329561/diffs
hankswu: [mixer] mixer enable tflow monitor flag https://git.woa.com/ads/main/merge_requests/329148/diffs
hankswu: [mixer] —exp_info=“level:user|all|int:164368:1|int:165382:1|int:164368:1|int:163890:1” Mixer耗时优化，RtaRankingRequestMerger 两阶段构造 https://git.woa.com/ads/main/merge_requests/329097/diffs
hankswu: [mixer] fix end of line for ranking_action.cc https://git.woa.com/ads/main/merge_requests/326730/diffs
hankswu: [mixer][cleanup] 清理无用代码 & TMP 监控 https://git.woa.com/ads/main/merge_requests/326099/diffs
hankswu: —exp_info=“level:user|all|int:164554:1” [mixer] add wait for future https://git.woa.com/ads/main/merge_requests/321311/diffs
本周目标
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主要工作
思考总结
Note
Mixer 时延优化，视频号本地时延累计优化11.6ms，31.3ms → 19.7ms，降低37%（本周无新增） a. Mixer 支持调优 Arena 参数，已推全，视频号优化 1ms b. 数据准备阶段耗时优化实验，已推全，视频号平均耗时优化 2.8ms，优化来源：Retrieval请求避免拷贝、Datahub 回包并行解压 & 反序列化、Adx Retrieval Request 并行构造 c. 检索阶段耗时优化，非联盟已推全，优化4ms，优化来源：GenDpaTargetingState 异步化，mixer topn list 异步构造 d. 精排阶段耗时优化：Ranking 请求级别字段异步构造 & GenericSwap 优化，Rta请求构造异步化 & FillNoveltyMap 异步化，5%实验中，预计优化2ms f. 形态回包阶段耗时优化：AdPackServerOp异步化，开发完成，5%，预计优化0.7ms
Mixer 成本优化 a. SetUserRealtimeBehaviorLastOccurrenceTimeV2 推动下线，20%实验中，与其他实验一起打包推全（视频号预计降低2% CPU) b. ReportMonitorOp 切换 tflow 监控sdk，初步看有2%左右CPU优化，0.1% 实验中 c. ranking 断流字段填充逻辑，20% 实验中
Preranking & Display 自身耗时分析：进行中
GPR：mixer 对于探索流量强制落请求
下周计划
- Display top 1% 时延
- 补充各阶段 indicator 上报
- Retrieval Request 分析
- Mixer 热点 Top10 分析
- Proxy 看 Preranking 耗时 - Preranking 看自己耗时