https://hex-go.github.io/series/go-gc/Recent content in Go GC on Hex BlogHugo -- gohugo.iozhhex-py@gmail.com (Hex)hex-py@gmail.com (Hex)©2026, All Rights ReservedFri, 23 Aug 2024 00:00:00 +0000https://hex-go.github.io/posts/golang/2026-06-26-go-gc-%E6%89%A9%E5%B1%95%E7%AF%87-java%E5%88%86%E4%BB%A3%E5%9B%9E%E6%94%B6python%E5%BC%95%E7%94%A8%E8%AE%A1%E6%95%B0/Fri, 23 Aug 2024 00:00:00 +0000hex-py@gmail.com (Hex)Fri, 23 Aug 2024 00:00:00 +0000https://hex-go.github.io/posts/golang/2026-06-26-go-gc-%E6%89%A9%E5%B1%95%E7%AF%87-java%E5%88%86%E4%BB%A3%E5%9B%9E%E6%94%B6python%E5%BC%95%E7%94%A8%E8%AE%A1%E6%95%B0/重要 Java 的 GC 是"分代假设"的代表——认为大部分对象短命，按新生代/老年代分层回收。Python 则以引用计数为主力、标记清除HexGCGoPythonGolangGo GChttps://hex-go.github.io/posts/golang/2026-06-26-go-gc-%E5%AE%9E%E8%B7%B5%E7%AF%87-%E8%A7%A6%E5%8F%91%E6%97%B6%E6%9C%BA%E5%8F%82%E6%95%B0%E8%B0%83%E4%BC%98/Mon, 19 Aug 2024 00:00:00 +0000hex-py@gmail.com (Hex)Mon, 19 Aug 2024 00:00:00 +0000https://hex-go.github.io/posts/golang/2026-06-26-go-gc-%E5%AE%9E%E8%B7%B5%E7%AF%87-%E8%A7%A6%E5%8F%91%E6%97%B6%E6%9C%BA%E5%8F%82%E6%95%B0%E8%B0%83%E4%BC%98/重要 GOGC 默认值 100 意味着堆内存增长 100% 时触发 GC。降低 GOGC 减少内存峰值但增加 CPU，提高 GOGC 反之。Go 1.19+ 引入 GOMEMLIMIT 软限制，更适合容器化部署。 1. GC 触发时机 GoHexGCGoGolangGo GChttps://hex-go.github.io/posts/golang/2026-06-25-go-gc-%E5%8E%9F%E7%90%86%E8%AF%A6%E8%A7%A3/Thu, 15 Aug 2024 00:00:00 +0000hex-py@gmail.com (Hex)Thu, 15 Aug 2024 00:00:00 +0000https://hex-go.github.io/posts/golang/2026-06-25-go-gc-%E5%8E%9F%E7%90%86%E8%AF%A6%E8%A7%A3/重要 Go 1.8+ GC 使用并发三色标记 + 混合写屏障，STW 降至微秒级。核心设计取舍：编译器逃逸分析将短生命周期对象留在栈上使分代回收收益小；TCMallHexGCGoGolangGo GC