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process์™€ thread 1

[์šด์˜์ฒด์ œ] process vs thread

ํ”„๋กœ์„ธ์Šค์™€ ์Šค๋ ˆ๋“œ process and thread ์šด์˜์ฒด์ œ ์œ ํ˜• ๋‹ค์ค‘ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ์‹œ์Šคํ…œ (multi programming) cpu๊ฐ€ ์ˆ˜ํ–‰ํ•  ์ž‘์—…์„ ํ•ญ์ƒ ๊ฐ€์ง€๋„๋ก ํ•˜์—ฌ cpu ์ด์šฉ๋ฅ  ์ฆ์ง„ ์šด์˜์ฒด์ œ๋Š” ๋ฉ”๋ชจ๋ฆฌ์— ์žˆ๋Š” ์ž‘์—… ์ค‘์—์„œ ํ•˜๋‚˜๋ฅผ ํƒํ•˜์—ฌ ์‹คํ–‰ํ•œ๋‹ค. multi programming์ด ์•„๋‹Œ ์‹œ์Šคํ…œ์—์„œ๋Š” ์ด ์ž‘์—…์€ ํ‚ค๋ณด๋“œ์—์„œ ๋ช…๋ น์„ ์ž…๋ ฅํ•˜๊ฑฐ๋‚˜, ์ž…์ถœ๋ ฅ ์กฐ์ž‘์ด ๋๋‚˜๋Š” ๊ฒƒ๊ณผ ๊ฐ™์€ ์–ด๋–ค์ผ์„ ๊ธฐ๋‹ค๋ ค์•ผํ•  ํ•„์š”๊ฐ€ ์žˆ์„ ์ˆ˜ ์žˆ๋Š”๋ฐ ์ด๋•Œ cpu๊ฐ€ ์œ ํœด์ƒํƒœ์— ๋†“์ด๊ฒŒ ๋œ๋‹ค. ํ•˜์ง€๋งŒ, multi programming system์—์„œ๋Š” ์šด์˜์ฒด์ œ๊ฐ€ ๊ฐ„๋‹จํžˆ ๋‹ค๋ฅธ ์ž‘์—…์œผ๋กœ ์ „ํ™˜ํ•˜์—ฌ ๊ทธ๊ฒƒ์„ ์ˆ˜ํ–‰ํ•˜๋„๋ก ํ•œ๋‹ค. ์•ž์˜ ์ž‘์—…์ด ๋๋‚˜๋ฉด ์ด ์ž‘์—…์€ cpu๋ฅผ ๋‹ค์‹œ ์ฐจ์ง€ํ•˜๊ฒŒ ๋œ๋‹ค. ๋”ฐ๋ผ์„œ ์ˆ˜ํ–‰๋  ์ž‘์—…์ด ๊ธฐ์–ต์žฅ์น˜์— ์ ์žฌ๋˜์–ด ์žˆ์œผ๋ฉด cpu๋Š” ์‰ฌ์ง€ ์•Š๋Š”๋‹ค..

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