â ç¾è¡è¨å®ç¢ºèª # cat /sys/kernel/mm/transparent_hugepage/defrag âalwayã§ããã°å¯¾è±¡ â ããï¼sysé«ããªã¨æã£ãã¨ãã«æ㤠# perf top â以ä¸ã®ããã«åºããããã«THPã®defragè¨å®ãè¦ç´ãã¾ããã ï½ï½ï½ Samples: 2M of event 'cycles', Event count (approx.): 908733026153 42.59% [kernel] [k] compaction_allocããââ ãã (å§ç¸®_åé ç½®) 8.09% [kernel] [k] __reset_isolation_suitable 2.32% [kernel] [k] compact_zone ... ï½ï½ï½ èµ·ããã㨠CPU使ç¨çã®sysãå¼µãä»ã postgresã®å¦çãæ¢ã¾ã postgresã®ããã»ã¹ã大é
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