Go 1.4 runtime Gopher China 2015 1. Memory Allocator 2. Garbage Collector 3. Goroutine Scheduler 1. Memory Allocator 内存分配器 base on tcmalloc. 基于成熟方案，性能优秀。随着版本升级， 针对性改进，以期与垃圾回收器更好协作。 核心：自主管理，缓存复用，无锁分配。 阈值触发，并行标记，并发清理。 定期强制回收，释放物理内存。 版本升级，垃圾回收效率总是核心问题。 gogc. 阈值检查，或强制回收。 malloc next_gc 0 gogc runtime.gc() stop start mark sweep stop start mark sweep 0 2 2 1 forcegc 2m 1 mark. 暂停用户逻辑，并行标记。 scheduler thread processor goroutine max. 系统限制，允许调整。 runtime.GOMAXPROCS 调整 P 数量，会导致 G 任务队列重新分布。 M G P scheduler max = 10000 max = 256 runtime/debug.SetMaxThreads 超出限制，会导致进程崩溃。 newproc. 创建新并发任务。

Rust 异步 Runtime 的兼容层 施继成 @ DatenLord Introduce what’s rust async runtime # Rust async runtime Analyze the reason of runtime isolation # Async runtime binding # Compatible layer 1 Create a wheel 2 3 # Rust async runtime 1 Light-weight task • Language and compiler define tasks • How to run it? • When to run it? • How does it deal with the I/O? Rust async runtime Runtime responsibilities it’s multi-thread model Rust async runtime Available Runtimes • Tokio • Async-std • Smol • Monoio Rust async runtime # Async runtime binding 2 Which runtime to choose ? • More adopters • Rich

浅谈全链路监控： 从应用到数据库到 Runtime 黄东旭, Co-founder & CTO, PingCAP 关于我 黄东旭，联合创始人 & CTO @ PingCAP 做分布式数据库的程序员 ● 现在能写代码的时间是奢侈品 TiDB 的亲爹之一兼首席客服和新功能的第一个用户 ● 冤有头债有主，SQL 慢了来找我。。。 偶尔玩玩音乐 ● 摇滚乐->实验音乐 Go 的粉丝！！！！ tool trace go tool trace ● 优点：好用，好看（UI） ● 缺点：性能损耗太大，不能一直开着 Trace in Go runtime ● go tool trace 的原理是？ Trace 会 Go Runtime 的代码中打桩收集 CPU time，在 Goroutine 开始执行时记录 start_run_time, 在调度退出执行时记录 end_run_time，累加 goroutine 的 CPU time。 A little bit about Go runtime https://learnku.com/articles/41728 https://github.com/golang/go/blob/ma ster/src/runtime/trace.go hack runtime 的思路： follow the tracing event. PingCAP

Kotlin 1.2 Kotlin 1.1 Kotlin 1.9.0 的新特性 发布于：2023-08-23 The Kotlin 1.9.0 release is out and the K2 compiler for the JVM is now in Beta. Additionally, here are some of the main highlights: 新版 Kotlin K2 编译器更新 The Kotlin team at JetBrains continues to stabilize the K2 compiler, and the 1.9.0 release introduces further advancements. The K2 compiler for the JVM is now in Beta. There's now also basic support with the K2 compiler, but with some restrictions. Despite setting languageVersion to 2.0 , the kapt compiler plugin still utilizes the old compiler. If you execute the kapt compiler plugin within

Kotlin 的新特性 53 Kotlin 1.9.0 的新特性 发布于：2023-08-23 The Kotlin 1.9.0 release is out and the K2 compiler for the JVM is now in Beta. Additionally, here are some of the main highlights: 新版 Kotlin K2 编译器更新 The Kotlin team at JetBrains continues to stabilize the K2 compiler, and the 1.9.0 release introduces further advancements. The K2 compiler for the JVM is now in Beta. There's now also basic support along with the K2 compiler, but with some restrictions. Despite setting languageVersion to 2.0 , the kapt compiler plugin still utilizes the old compiler. If you execute the kapt compiler plugin within

mod_proxy_balancer More runtime configuration changes for BalancerMembers via balancer-manager Additional BalancerMembers can be added at runtime via balancer-manager Runtime configuration of a subset mod_authnz_ldap adds support for nested groups. mod_ldap adds LDAPConnectionPoolTTL, LDAPTimeout, and other improvements in the handling of timeouts. This is especially useful for setups where a stateful firewall drops With the introduction of platform-specific multi-processing modules (MPMs) and the Apache Portable Runtime (APR), these platforms are now implemented in their native API, avoiding the often buggy and poorly

mod_proxy_balancer More runtime configuration changes for BalancerMembers via balancer-manager Additional BalancerMembers can be added at runtime via balancer-manager Runtime configuration of a subset mod_authnz_ldap adds support for nested groups. mod_ldap adds LDAPConnectionPoolTTL, LDAPTimeout, and other improvements in the handling of timeouts. This is especially useful for setups where a stateful firewall drops With the introduction of platform-specific multi-processing modules (MPMs) and the Apache Portable Runtime (APR), these platforms are now implemented in their native API, avoiding the often buggy and poorly

mod_proxy_balancer More runtime configuration changes for BalancerMembers via balancer-manager Additional BalancerMembers can be added at runtime via balancer-manager Runtime configuration of a subset mod_authnz_ldap adds support for nested groups. mod_ldap adds LDAPConnectionPoolTTL, LDAPTimeout, and other improvements in the handling of timeouts. This is especially useful for setups where a stateful firewall drops With the introduction of platform-specific multi-processing modules (MPMs) and the Apache Portable Runtime (APR), these platforms are now implemented in their native API, avoiding the often buggy and poorly

mod_proxy_balancer More runtime configuration changes for BalancerMembers via balancer-manager Additional BalancerMembers can be added at runtime via balancer-manager Runtime configuration of a subset mod_authnz_ldap adds support for nested groups. mod_ldap adds LDAPConnectionPoolTTL, LDAPTimeout, and other improvements in the handling of timeouts. This is especially useful for setups where a stateful firewall drops With the introduction of platform-specific multi-processing modules (MPMs) and the Apache Portable Runtime (APR), these platforms are now implemented in their native API, avoiding the often buggy and poorly

mod_proxy_balancer More runtime configuration changes for BalancerMembers via balancer-manager Additional BalancerMembers can be added at runtime via balancer-manager Runtime configuration of a subset mod_authnz_ldap adds support for nested groups. mod_ldap adds LDAPConnectionPoolTTL, LDAPTimeout, and other improvements in the handling of timeouts. This is especially useful for setups where a stateful firewall drops With the introduction of platform-specific multi-processing modules (MPMs) and the Apache Portable Runtime (APR), these platforms are now implemented in their native API, avoiding the often buggy and poorly