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authorilezhankin <ilezhankin@yandex-team.com>2025-02-26 00:28:07 +0300
committerilezhankin <ilezhankin@yandex-team.com>2025-02-26 00:43:10 +0300
commit7365351c5991c71cf00cec395da951e1e5a6a3fb (patch)
tree6e4799cb8d3f64a27373264edb88417dddeddeae /contrib/java
parentc7a3ca4d4ab570913015e4be40d3ed8fefa194ee (diff)
downloadydb-7365351c5991c71cf00cec395da951e1e5a6a3fb.tar.gz
Replace munmap() with madvise() syscall
Для примера два идентичных прогона `` (смотреть нужно на сенсор `Stats/MemMapsCount`) , в которых мы каждую секунду очищаем весь кэш страниц из глобальных пулов.![image](https://arcanum.s3.mds.yandex.net/files/ilezhankin/t68HzHlhNyjG3dbFiyz6G)Вариант с `madvise()` - <https://nda.ya.ru/t/QJN6Gvb-7C7QVA> ![image](https://arcanum.s3.mds.yandex.net/files/ilezhankin/qZT0xYtXxp6fgcZfFz\_aE) Вариант с `munmap()` - <https://nda.ya.ru/t/trl7NAm37C7d6i> commit_hash:667fcaace2243948a962b1baf3e874891ce528f4
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