sysinfo(2) - wariua/manpages-ko GitHub Wiki

NAME

sysinfo - ์‹œ์Šคํ…œ ์ •๋ณด ๋ฐ˜ํ™˜

SYNOPSIS

#include <sys/sysinfo.h>

int sysinfo(struct sysinfo *info);

DESCRIPTION

sysinfo()๋Š” ๋ฉ”๋ชจ๋ฆฌ ๋ฐ ์Šค์™‘ ์‚ฌ์šฉ, ๊ทธ๋ฆฌ๊ณ  ํ‰๊ท  ๋ถ€ํ•˜์— ๋Œ€ํ•œ ๋ช‡ ๊ฐ€์ง€ ํ†ต๊ณ„๋ฅผ ๋ฐ˜ํ™˜ํ•œ๋‹ค.

๋ฆฌ๋ˆ…์Šค 2.3.16๊นŒ์ง€์—์„œ sysinfo()๋Š” ๋‹ค์Œ ๊ตฌ์กฐ์ฒด๋กœ ์ •๋ณด๋ฅผ ๋ฐ˜ํ™˜ํ–ˆ๋‹ค.

struct sysinfo {
    long uptime;             /* ๋ถ€ํŒ… ํ›„ ์ง€๋‚œ ์ดˆ */
    unsigned long loads[3];  /* 1๋ถ„, 5๋ถ„, 15๋ถ„ ํ‰๊ท  ๋ถ€ํ•˜ */
    unsigned long totalram;  /* ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์ฃผ ๋ฉ”๋ชจ๋ฆฌ ์ดํฌ๊ธฐ */
    unsigned long freeram;   /* ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ๋ฉ”๋ชจ๋ฆฌ ํฌ๊ธฐ */
    unsigned long sharedram; /* ๊ณต์œ  ๋ฉ”๋ชจ๋ฆฌ ์–‘ */
    unsigned long bufferram; /* ๋ฒ„ํผ์—์„œ ์“ฐ๋Š” ๋ฉ”๋ชจ๋ฆฌ */
    unsigned long totalswap; /* ์Šค์™‘ ๊ณต๊ฐ„ ์ดํฌ๊ธฐ */
    unsigned long freeswap;  /* ์•„์ง ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์Šค์™‘ ๊ณต๊ฐ„ */
    unsigned short procs;    /* ํ˜„์žฌ ํ”„๋กœ์„ธ์Šค ๊ฐœ์ˆ˜ */
    char _f[22];             /* ๊ตฌ์กฐ์ฒด๋ฅผ 64๋น„ํŠธ๋กœ ์ฑ„์šฐ๊ธฐ */
};

์œ„ ๊ตฌ์กฐ์ฒด์—์„œ ๋ฉ”๋ชจ๋ฆฌ ๋ฐ ์Šค์™‘ ํ•„๋“œ์˜ ํฌ๊ธฐ๋Š” ๋ฐ”์ดํŠธ ๋‹จ์œ„์ด๋‹ค.

๋ฆฌ๋ˆ…์Šค 2.3.23(i386) ๋ฐ 2.3.48(๋ชจ๋“  ์•„ํ‚คํ…์ฒ˜)๋ถ€ํ„ฐ๋Š” ๋‹ค์Œ ๊ตฌ์กฐ์ฒด์ด๋‹ค.

struct sysinfo {
    long uptime;             /* ๋ถ€ํŒ… ํ›„ ์ง€๋‚œ ์ดˆ */
    unsigned long loads[3];  /* 1๋ถ„, 5๋ถ„, 15๋ถ„ ํ‰๊ท  ๋ถ€ํ•˜ */
    unsigned long totalram;  /* ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์ฃผ ๋ฉ”๋ชจ๋ฆฌ ์ดํฌ๊ธฐ */
    unsigned long freeram;   /* ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ๋ฉ”๋ชจ๋ฆฌ ํฌ๊ธฐ */
    unsigned long sharedram; /* ๊ณต์œ  ๋ฉ”๋ชจ๋ฆฌ ์–‘ */
    unsigned long bufferram; /* ๋ฒ„ํผ์—์„œ ์“ฐ๋Š” ๋ฉ”๋ชจ๋ฆฌ */
    unsigned long totalswap; /* ์Šค์™‘ ๊ณต๊ฐ„ ์ดํฌ๊ธฐ */
    unsigned long freeswap;  /* ์•„์ง ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์Šค์™‘ ๊ณต๊ฐ„ */
    unsigned short procs;    /* ํ˜„์žฌ ํ”„๋กœ์„ธ์Šค ๊ฐœ์ˆ˜ */
    unsigned long totalhigh; /* ์ƒ์œ„ ๋ฉ”๋ชจ๋ฆฌ ์ดํฌ๊ธฐ */
    unsigned long freehigh;  /* ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ์ƒ์œ„ ๋ฉ”๋ชจ๋ฆฌ ํฌ๊ธฐ */
    unsigned int mem_unit;   /* ๋ฉ”๋ชจ๋ฆฌ ๋‹จ์œ„ ํฌ๊ธฐ์˜ ๋ฐ”์ดํŠธ ์ˆ˜ */
    char _f[20-2*sizeof(long)-sizeof(int)];
                             /* ๊ตฌ์กฐ์ฒด๋ฅผ 64๋น„ํŠธ๋กœ ์ฑ„์šฐ๊ธฐ */
};

์œ„ ๊ตฌ์กฐ์ฒด์—์„œ ๋ฉ”๋ชจ๋ฆฌ ๋ฐ ์Šค์™‘ ํ•„๋“œ์˜ ํฌ๊ธฐ๋Š” mem_unit ๋ฐ”์ดํŠธ๊ฐ€ ๋‹จ์œ„์ด๋‹ค.

RETURN VALUE

์„ฑ๊ณต ์‹œ sysinfo()๋Š” 0์„ ๋ฐ˜ํ™˜ํ•œ๋‹ค. ์˜ค๋ฅ˜ ์‹œ -1์„ ๋ฐ˜ํ™˜ํ•˜๋ฉฐ ์˜ค๋ฅ˜ ์›์ธ์„ ๋‚˜ํƒ€๋‚ด๋„๋ก errno๋ฅผ ์„ค์ •ํ•œ๋‹ค.

ERRORS

EFAULT
info๊ฐ€ ์œ ํšจํ•œ ์ฃผ์†Œ๊ฐ€ ์•„๋‹ˆ๋‹ค.

VERSIONS

๋ฆฌ๋ˆ…์Šค 0.98.pl6์—์„œ sysinfo()๊ฐ€ ์ฒ˜์Œ ๋“ฑ์žฅํ–ˆ๋‹ค.

CONFORMING TO

์ด ํ•จ์ˆ˜๋Š” ๋ฆฌ๋ˆ…์Šค ์ „์šฉ์ด๋ฏ€๋กœ ์ด์‹์„ฑ์ด ์žˆ์–ด์•ผ ํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์—์„œ๋Š” ์‚ฌ์šฉํ•˜์ง€ ๋ง์•„์•ผ ํ•œ๋‹ค.

NOTES

์ด ์‹œ์Šคํ…œ ํ˜ธ์ถœ์—์„œ ์ œ๊ณตํ•˜๋Š” ์ •๋ณด ๋ชจ๋‘๋ฅผ /proc/meminfo ๋ฐ /proc/loadavg๋ฅผ ํ†ตํ•ด์„œ๋„ ์–ป์„ ์ˆ˜ ์žˆ๋‹ค.

SEE ALSO

proc(5)


2017-09-15

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