| Terminology | Description |
|---|---|
| batch | 批次，one time a job |
| idle | 閒置 |
| volatile | 斷電即遺失 |
| userprog | user program |
| overhead | 浪費 |
| cascading | 瀑布般的 |
| trashing | 越來越多 page fault 導致 CPU 使用率低下 |
| locality | a set of pages that are actively used together |
| preemptive/non-preemptive | 打斷/不打斷 |
- Two Interrupt types: System call (software trigger), Signal (Hareware trigger)
In Linux, There are two ways to implement zero-copy: mmap + write and sendfile
mmapreturns addresses instead of copy data from kernal memory
- by Java:
Java NIO - transferTo()