Linux Certif

Toute la documentation sur la certification Linux LPI

set_mempolicy

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set_mempolicy - ¥×¥í¥»¥¹¤È¤½¤Î»Ò¥×¥í¥»¥¹¤Î NUMA ¥á¥â¥ê¤Î ¥Ç¥Õ¥©¥ë¥È¥Ý¥ê¥·¡¼¤òÀßÄꤹ¤ë

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#include <numaif.h>



int set_mempolicy(int policy, unsigned long *nodemask,

                  unsigned long maxnode);

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set_mempolicy() ¤Ï¡¢¸Æ¤Ó½Ð¤·¸µ¥×¥í¥»¥¹¤Î NUMA ¥Ý¥ê¥·¡¼¤ò policy ¤ËÀßÄꤹ¤ë¡£

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MPOL_DEFAULT ¥Ý¥ê¥·¡¼¤¬¥Ç¥Õ¥©¥ë¥È¤Ç¤¢¤ê¡¢¤³¤ì¤ò»ØÄꤹ¤ë¤È¥í¡¼¥«¥ë¤Î¥á¥â¥ê¤¬ ³ä¤êÅö¤Æ¤é¤ì¤ë¡¢¤Ä¤Þ¤ê¥á¥â¥ê³ä¤êÅö¤Æ¤Î¤­¤Ã¤«¤±¤È¤Ê¤Ã¤¿ CPU ¤Î ¥Î¡¼¥É¤Ë¥á¥â¥ê¤¬³ä¤êÅö¤Æ¤é¤ì¤ë¡£ nodemask ¤Ë¤Ï NULL ¤ò»ØÄꤹ¤Ù¤­¤Ç¤¢¤ë¡£

MPOL_BIND ¤Ï¸·¤·¤¤¥Ý¥ê¥·¡¼¤Ç¡¢¥á¥â¥ê³ä¤êÅö¤Æ¤Ï nodemask ¤Ë»ØÄꤵ¤ì¤¿¥Î¡¼¥É¤Ë¸ÂÄꤵ¤ì¤ë¡£ ¾¤Î¥Î¡¼¥É¤Ø¤Î³ä¤êÅö¤Æ¤Ï¹Ô¤ï¤ì¤Ê¤¤¡£

MPOL_INTERLEAVE ¤Ç¤Ï¡¢¥á¥â¥ê³ä¤êÅö¤Æ¤ò nodemask ¤Ë»ØÄꤵ¤ì¤¿¥Î¡¼¥É¤Ë¸ò¸ß¤Ë¹Ô¤¦¡£ ¤³¤Î¥Ý¥ê¥·¡¼¤Ç¤Ï¡¢ÃÙ±ä¤Ç¤Ï¤Ê¤¯¡¢ÂӰ褬ºÇŬ²½¤µ¤ì¤ë¡£ ¸ú²Ì¤òÆÀ¤ë¤Ë¤Ï¡¢¥á¥â¥êÎΰè¤ò¤¢¤ëÄøÅÙÂ礭¤¯¤¹¤Ù¤­¤Ç¤¢¤ê¡¢ ¾¯¤Ê¤¯¤È¤â 1MB °Ê¾åɬÍפǤ¢¤ë¡£

MPOL_PREFERRED ¤Ï¡¢³ä¤êÅö¤Æ»þ¤ËÍ¥À褵¤ì¤ë¥Î¡¼¥É¤òÀßÄꤹ¤ë¡£ ¥«¡¼¥Í¥ë¤Ï¤Þ¤ºÍ¥Àè¥Î¡¼¥É¤Ë³ä¤êÅö¤Æ¤ò¹Ô¤ª¤¦¤È¤·¡¢ Í¥Àè¥Î¡¼¥É¤Ë¶õ¤­¥á¥â¥ê¤¬¾¯¤Ê¤¤¾ì¹ç¤Ë¾¤Î¥Î¡¼¥É¤Ë³ä¤êÅö¤Æ¤ò¹Ô¤¦¡£ nodemask ¤ÎºÇ½é¤Î¥Î¡¼¥É¤À¤±¤¬»ÈÍѤµ¤ì¤ë¡£ nodemask ¤Ë¤É¤Î¥Î¡¼¥É¤â¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤Ê¤±¤ì¤Ð¡¢ (MPOL_DEFAULT ¤ÈƱ¤¸¤è¤¦¤Ë) ³ä¤êÅö¤Æ¤Î¤­¤Ã¤«¤±¤È¤Ê¤Ã¤¿ CPU ¤Î¥Î¡¼¥É¤Ë¥á¥â¥ê³ä¤êÅö¤Æ¤¬¹Ô¤ï¤ì¤ë¡£

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mbind(2) »²¾È¡£

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