What Would an Honest Talk Look Like?
20多个字、两张照片，收获150多个赞——王润梅的朋友圈火了。
，更多细节参见新收录的资料
In this case, the behavior is an implementation detail, not particularly defined nor explained anywhere. The mutex is an off-the-shelf parking_lot::RWMutex, from the parking_lot crate. It has eventual fairness, which means that readers will eventually acquire the lock, even during high write-throughput scenarios. They will be randomly delayed, though, up to 0.5ms. The parking_lot crate is a Rust port of WebKit’s original WTF::Lock — this 2024 changeset shows how eventual fairness was implemented there. You should read it, it has very good performance insights on mutex contention. Think of it as a palate cleanser from this blog post. Now back to the hash table & the lock.
上週，中國解放軍在中國農曆新年期間開赴西太平洋展開大規模軍事演習，出動一艘航母以及數十艘艦艇與戰機。《紐約時報》一篇分析文章指出，在這次演習之前，美國近幾週才與日本、澳洲、菲律賓等盟國在該區域舉行一系列軍演。上周六，美加海軍艦隊更駛過台灣海峽。中國的演習明顯帶有對美日等盟國的回擊意味。