Memory mapping is an operating system feature that maps file contents directly into a process's virtual address space. Instead of reading file data into buffers with traditional I/O operations, the OS ...

In Java, if you have millions of objects in the heap, it causes program to run slow + risk out of memory. To solve this problem, we can use memory-mapped file. This method create a file channel that ...

大手コンピュータ・メーカー勤務。入社以来10数年をソフトウェア開発の現場で過ごし，その後ソフトウェア品質部へ異動。現場への技術支援や品質教育開発などを主に行っている。「APIで学ぶWindows徹底理解」(日経BP社)などを執筆。 前回は，仮想メモリー ...

Hope this title is more or less correct! I have written a video importer that has to scan potentially huge files (several Gb) in order to find the frames of interest, with the only requirement for ...

Have you ever thought of writing your own compiler? There are a number of good reasons to do this. It's incredibly educational and can be useful. It can solve problems and produce abstractions that ...