[問題] Node.js 延伸模組的 memory leak已刪文

看板Programming作者Neisseria (Neisseria)時間8年前 (2016/12/23 08:38)推噓1(1推 0噓 4→)

留言5則, 1人參與討論串1/1

小弟最近在練習用 Rust 寫高階語言的延伸模組，repo 如下： https://github.com/cwchentw/libmatrix-rust-demo 但小弟不解的是，為何以 Node.js 撰寫的模組的記憶體用量不斷上升？小弟用 C 存取此模組，以 Valgrind 檢查沒有 memory leak $ valgrind ./matrix ==4880== Memcheck, a memory error detector ==4880== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==4880== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info ==4880== Command: ./matrix ==4880== ==4880== ==4880== HEAP SUMMARY: ==4880== in use at exit: 0 bytes in 0 blocks ==4880== total heap usage: 5,000 allocs, 5,000 frees, 216,000 bytes allocated ==4880== ==4880== All heap blocks were freed -- no leaks are possible ==4880== ==4880== For counts of detected and suppressed errors, rerun with: -v ==4880== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) 以 Python 存取此模組的記憶體用量如圖：http://imgur.com/8X7kFNy

可以看到記憶體用量維持水平以 Ruby 存取此模組的記憶體用量如圖：http://imgur.com/XdQh2cM

同樣地，記憶體用量也是維持水平而以 Node.js 存取此模組的記憶體用量如圖：http://imgur.com/03MJQa6

可以看出來記憶體用量持續爬升不好意思，小弟沒有將數據正規化只是讓大家看一下記憶體變化的趨勢而已小弟比較沒有寫 Node.js 延伸模組的經驗，還在練習階段不知道是那個地方出了問題，上來問一下各位大大感謝看完長文，PTT 惠我良多 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 175.182.142.8 ※ 文章網址: https://www.ptt.cc/bbs/Programming/M.1482453518.A.5D3.html