Linux Certif

Toute la documentation sur la certification Linux LPI

get_mempolicy

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get_mempolicy - ¥×¥í¥»¥¹¤Î NUMA ¥á¥â¥ê¤Î¥Ý¥ê¥·¡¼¤ò¼èÆÀ¤¹¤ë

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#include <numaif.h>

int get_mempolicy(int *policy, unsigned long *nodemask,

                  unsigned long maxnode, unsigned long addr,

                  unsigned long flags);

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flags ¤Ë 0 ¤¬»ØÄꤵ¤ì¤¿¾ì¹ç¡¢ (set_mempolicy(2) ¤ÇÀßÄꤵ¤ì¤¿) ¸Æ¤Ó½Ð¤·¸µ¥×¥í¥»¥¹¤Î¥Ç¥Õ¥©¥ë¥È¥Ý¥ê¥·¡¼¤Ë´Ø¤¹¤ë¾ðÊó¤òÊÖ¤¹¡£

flags ¤Ë MPOL_F_ADDR ¤¬»ØÄꤵ¤ì¤¿¾ì¹ç¡¢ addr ¤Ç»ØÄꤵ¤ì¤¿¥á¥â¥ê¥¢¥É¥ì¥¹¤ËŬÍѤµ¤ì¤Æ¤¤¤ë¥Ý¥ê¥·¡¼¤Ë´Ø¤¹¤ë¾ðÊó¤òÊÖ¤¹¡£ set_mempolicy(2) ¤ò»È¤Ã¤Æ addr ¤ò´Þ¤à¥Ú¡¼¥¸¤ËÂФ·¤Æ¥Ý¥ê¥·¡¼¤¬ÀßÄꤵ¤ì¤Æ¤¤¤¿¾ì¹ç¤Ë¤Ï¡¢ ÊÖ¤µ¤ì¤ë¥Ý¥ê¥·¡¼¤Ï¥×¥í¥»¥¹¤Î¥Ç¥Õ¥©¥ë¥È¥Ý¥ê¥·¡¼¤È°ã¤¦¤³¤È¤¬¤¢¤ë¡£

policy ¤¬ NULL °Ê³°¤Î¾ì¹ç¡¢¥Ý¥ê¥·¡¼¤òÊÖ¤¹¤Î¤Ë policy ¤¬»È¤ï¤ì¤ë¡£ nodemask ¤¬ NULL °Ê³°¤Î¾ì¹ç¡¢¤½¤Î¥Ý¥ê¥·¡¼¤ËÂбþ¤¹¤ë¥Î¡¼¥É¥Þ¥¹¥¯¤òÊÖ¤¹¤Î¤Ë nodemask ¤¬»È¤ï¤ì¤ë¡£ maxnode ¤Ï nodemask ¤Ë³ÊǼ¤Ç¤­¤ëºÇÂç¥Ó¥Ã¥È¿ô¤Ë 1 ¤ò­¤·¤¿Ãͤò»ØÄꤹ¤ë¡£ ¥Ó¥Ã¥È¿ô¤Ï¾ï¤Ë unsigned long ¤ÎÇÜ¿ô¤ËÀÚ¤ê¾å¤²¤é¤ì¤ë¡£

ÀßÄê²Äǽ¤Ê¥Ý¥ê¥·¡¼¤Î³µÍפˤĤ¤¤Æ¤Ï set_mempolicy(2) ¤ò»²¾È¡£

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mbind(2) »²¾È¡£

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mbind(2), set_mempolicy(2), numactl(8), numa(3)