OS - Ch03.Processes (2)
ยท
๐Ÿ’ป CS/OperatingSystem | ์šด์˜์ฒด์ œ
10. Operations on Processesfork(), exec(), exit() .. ๋“ฑ์€ system call์ž„.- Process Creation (ํ”„๋กœ์„ธ์Šค ์ƒ์„ฑ)    - fork() : OS์—๊ฒŒ ํ”„๋กœ์„ธ์Šค๋ฅผ ์ƒ์„ฑํ•ด๋‹ฌ๋ผ๊ณ  ์š”์ฒญํ•˜๋Š” system call- Process Execution (ํ”„๋กœ์„ธ์Šค ์‹คํ–‰)    - exec() : file system์— ์–ด๋–ค ์‹คํ–‰ํŒŒ์ผ์ด ์žˆ๋Š”๋ฐ, ์ด ์‹คํ–‰ํŒŒ์ผ์„ ์‹คํ–‰์‹œ์ผœ๋‹ฌ๋ผ๊ณ  ์š”์ฒญํ•˜๋Š” system call- Process termination (ํ”„๋กœ์„ธ์Šค ์ข…๋ฃŒ)    - exit() : ํ”„๋กœ์„ธ์Šค๋ฅผ ์ข…๋ฃŒ์‹œ์ผœ๋‹ฌ๋ผ๊ณ  ์š”์ฒญํ•˜๋Š” system call    - _exit()    - abort()    - wait()- Cooperating processes (ํ”„๋กœ์„ธ์Šค ๊ฐ„ ํ˜‘๋ ฅ)..
OS - Ch03.Processes (1)
ยท
๐Ÿ’ป CS/OperatingSystem | ์šด์˜์ฒด์ œ
์ œ๋ชฉ ์•ž์˜ * ํ‘œ์‹œ๋Š” ์ค‘์š”ํ•˜๋‹ค๋Š” ์˜๋ฏธ์ž…๋‹ˆ๋‹ค. ์šด์˜์ฒด์ œ : ์ปดํ“จํ„ฐ ํ•˜๋“œ์›จ์–ด๋ฅผ ๊ด€๋ฆฌํ•˜๋Š” ์†Œํ”„ํŠธ์›จ์–ด์ปดํ“จํ„ฐ ํ•˜๋“œ์›จ์–ด : CPU, Memory, I/O ์žฅ์น˜=> ์šด์˜์ฒด์ œ๊ฐ€ ํ•˜๋Š” ์ผ : CPU ๊ด€๋ฆฌ / Memory ๊ด€๋ฆฌ / I/O ์žฅ์น˜ ๊ด€๋ฆฌ 1. Program vs. Process- Program: disk .. ๋˜๋Š” file system์— ์ €์žฅ๋œ ์‹คํ–‰ ํŒŒ์ผ- Process: Program์€ ์‹คํ–‰์ด ๋˜๋ฉด Memory๋กœ loading๋˜์–ด ์‹คํ–‰๋˜๋Š”๋ฐ, ์ด๋•Œ ๋ฉ”๋ชจ๋ฆฌ๋กœ ๋กœ๋”ฉ๋˜์–ด ์‹คํ–‰๋˜๋Š” ์‹คํ–‰ ์ฃผ์ฒด๊ฐ€ Process.: Basic unit of execution(์‹คํ–‰) and scheduling.: A process is named using its process ID (PID, integer(์ˆซ์ž)์ž„) *Scheduling..