本文介绍了缓存的常见使用场景、选型以及注意点,比较有价值。 译自:Implementing robust in-memory cache with Go 内存型缓存是一种以消费内存为代价换取应用性能和弹性的方式,同时也推迟了数据的一致性。在使…
使用Go实现健壮的内存型缓存 本文介绍了缓存的常见使用场景、选型以及注意点,比较有价值。 译自:Implementing robust in-memory cache with Go 内存型缓存是一种以消费内存为代价换取应用性能和弹性的方式,同时也推迟了数据的一致性。在使用内存型缓存时需要注意并行更
High performance resilient in-memory cache for Go This library defines cache interfaces and provides in-memory implementations. Why? There are a few libraries that provide in-memory cache already, why another one? This library addresses additional practical issues that are not usually covered by key...
span一共有三种状态:IN_USE,ON_NORMAL_FREELIST,ON_RETURNED_FREELIST.怎么理解这些状态呢?站在pageHeap的角度,pageHeap具体概念见下文。这里先记住pageHeap是管理span的。IN_USE顾名思义就是正在使用中,就是说拆分的小对象已分配给centralCache或者threadCache或者是已分配给应用程序了。因为从pageHeap角度看,span不管...
First in first out (FIFO) Least recently used (LRU) It also supports cache entry TTL, which is both active and passive. Active expiration means that if you attempt to retrieve a cache key that has already expired, it will delete it on the spot and the behavior will be as if the cache...
1. TCMalloc内存分配的核心思想是:多级缓存机制,每个线程Thread自行维护一个无锁的线程本地缓存ThreadCache,小对象优先从本地缓存申请内存,内存不足时向加锁的中央缓存CentralCache申请,中央缓存不足时向页堆PageHeap申请,大对象直接向页堆PageHeap申请。 2. Go内存分配器的设计思想主要来自TCMalloc,也是包含三级缓存机制...
go-cache,github 5.8k star 单机本地缓存的代表golang项目。 patrickmn/go-cache: An in-memory key:value store/cache (similar to Memcached) library for Go, suitable for single-machine applications. (github.com)github.com/patrickmn/go-cache bigcache, github 5.4k star 以高效、高性能为推广点。
client, err := ent.Open("sqlite3","file:ent?mode=memory&cache=shared&_fk=1")iferr !=nil{ log.Fatalf("failed opening connection to sqlite: %v", err) }deferclient.Close() MySQL/MariaDB TiDB 高度兼容MySQL 5.7 协议 ClickHouse 支持MySQL wire通讯协议 ...
fairly trivial to switch to an in-memory row cache 就不翻译了。简单来讲,vitess的作者也认为进程内的cache是更好的方案,由于当前golang的gc实现还不够理想, 所以选择了memcache。另外这里有篇文章分享了从ruby到golang到c的历程也说明go的gc还不够成熟。
go-cache go-cache is an in-memory key:value store/cache similar to memcached that is suitable for applications running on a single machine. Its major advantage is that, being essentially a thread-safemap[string]interface{}with expiration times, it doesn't need to serialize or transmit its co...