๐Ÿ‘Š CS

์ œ๋ฐœ ๋…ธ๋ ฅํ•œ๊ฑฐ๋ณด๋‹ค ํ•™์  ์ž˜ ๋ฐ›๊ฒŒ ํ•ด์ฃผ์„ธ์š”
Ready ์ƒํƒœ์— ์žˆ๋Š” ํ”„๋กœ์„ธ์Šค ์ค‘ ๋ˆ„๊ตฌ์—๊ฒŒ CPU๋ฅผ ํ• ๋‹นํ• ๊ฒƒ์ธ๊ฐ€์— ๋Œ€ํ•œ ์ •์ฑ… Batch ์‹œ์Šคํ…œ์ด๋ƒ - TimeSharing ์‹œ์Šคํ…œ์ด๋ƒ์— ๋”ฐ๋ผ ๋‹ค๋ฆ„ Context Switching Overhead๋ฅผ ๊ณ ๋ คํ•ด์•ผํ•œ๋‹ค. user mode => kernel mode ๋ชจ๋“œ ์Šค์œ„์นญ ํ˜„์žฌ์˜ ์ƒํƒœ์ •๋ณด ์ €์žฅ ์ฃผ์†Œ๊ณต๊ฐ„ (memory map) ์ •๋ณด ์ €์žฅ ๋‹ค์Œ์— ์‹คํ–‰ํ•  ํ”„๋กœ์„ธ์Šค ์„ ํƒ (์Šค์ผ€์ฅด๋ง) PCB์— ์ €์žฅ๋˜์–ด ์žˆ๋Š” ๋ฐ์ดํ„ฐ ๋ฆฌ๋กœ๋”ฉ ๋“ฑ, ๊ฝค ๋งŽ์€ ์ผ์ด context switch ์‚ฌ์ด์— ์ผ์–ด๋‚œ๋‹ค!! Process Behavior CPU๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ํŒจํ„ด์— ๋”ฐ๋ผ a) Compute Bound : CPU ์—ฐ์‚ฐ์˜ ๋น„์ค‘์ด ๋†’์€ ํ”„๋กœ์„ธ์Šค b) I/O Bound : I/O ์—ฐ์‚ฐ์˜ ๋น„์ค‘์ด ๋†’์€ ํ”„๋กœ์„ธ์Šค CPU์˜ ์„ฑ๋Šฅ์— ๋”ฐ๋ผ ์ƒ๋Œ€์ ์œผ๋กœ ๊ฒฐ์ •๋œ๋‹ค..
ํ•œ๊ทœ์ง„
'๐Ÿ‘Š CS' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๊ธ€ ๋ชฉ๋ก