垃圾回收永生代

发布时间：2020-12-14 00:46:17 所属栏目：Linux 来源：网络整理

导读：https://docs.python.org/3/library/gc.html#module-gc gc. freeze ( ) Freeze all the objects tracked by gc - move them to a permanent generation and ignore all the future collections. This can be used before a POSIX fork() call to make the gc

https://docs.python.org/3/library/gc.html#module-gc


gc. freeze (): Freeze all the objects tracked by gc - move them to a permanent generation and ignore all the future collections. This can be used before a POSIX fork() call to make the gc copy-on-write friendly or to speed up collection. Also collection before a POSIX fork() call may free pages for future allocation which can cause copy-on-write too so it’s advised to disable gc in master process and freeze before fork and enable gc in child process.

New in version 3.7.

gc. unfreeze (): Unfreeze the objects in the permanent generation,put them back into the oldest generation.

New in version 3.7.

gc. get_freeze_count (): Return the number of objects in the permanent generation.

（编辑：李大同）

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垃圾回收 永生代

垃圾回收永生代