Garbage collection in Python: things you need to know

在 Python 中,每个 variable 都是一个指向一个对象的 reference(pointer),为了追踪 reference 每个 object 中都会有一个 reference count,当对象被 copy 或 delete 则相应的增减或减少其 count,当 count 值为 0 时,则表明已经没有 variable 指向这个 object 了,这时则需要 gc (garbage collector) 将 object 清除,进而回收其占用的内存。当然也可以通过 gc.disable() 禁用 gc ,gc.collect() 手动运行 gc。

Garbage collection in Python: things you need to know

comments powered by Disqus


abcs accept acid activemq affinity algorithm allocation android array async aws b+tree b-tree backoff benchmark best-practices bfs big-o bigquery bind bitcount blog break broker bubble buffer cache cap cert cgroups channel citus class classmethod cluster concurrency config consumer container cookie cors crawler cronjob csrf ctr data-science data-structure database datadog dataflow datascience decorator defer dfs distributed django dns docker double-shipping drf ecosia elastic-search enumerate epoll extra facebook-pixel financial-report flask flutter forward-proxy freelance frp garbage-collector gc gcp generator get gil git golang goroutine graphql ha handbook haproxy hash hash-slot hashring hashtable hpa http http-auth http-proxy http_proxy https index innodb instagram intergration interview ios javascript jinja2 jobboard jwt k8s kafka kibana kqueue label lambda layer4 layer7 lean linked-list linux list listen loadbalancer logs long-tail lru marketing master matplotlib memory merge metaclass metaprogramming metrics metrics-server microservices mitm model mq myisam mysql namespace nat netflix network-extension nginx nodejs nomad nosql npm oodesign openssl optimization orm pandas parallelism parkinglot patroni permission pg pipeline pixelme post postgresql postresql prefetch_related prerender process proxy proxycommand put pvm python queue rabbitmq rbac react-native rebase redis redis-cluster replication resource rest restfulapi retargeting retry revenue reverse-proxy rocketmq saas scaleable search-engine security select seo serverless service session set shadosocks shadowsocks shard sharding shell shopify sigint signal sigterm slack slave slow-query sniper sns socket socks5 source-code spa sql sqlalchemy sqs ssh ssl ssl-pinning stack startup state stateful stateless staticmethod string struct swift switch syscall system-design systemctl tcp tcp-proxy thread tmpreaper token traefik trustkit tunning type typeform udp variable vc vpn vuejs web web-development where yarn zset 削峰 宽索引 异步 窄索引 解耦 跨域 跳板机


2019 (137)
0001 (1)