{"id":1052,"date":"2016-01-01T13:04:14","date_gmt":"2016-01-01T13:04:14","guid":{"rendered":"http:\/\/haisins.epac.to\/wordpress\/?p=1052"},"modified":"2016-01-01T13:04:14","modified_gmt":"2016-01-01T13:04:14","slug":"hugepages-%ec%84%a4%ec%a0%95-%eb%b0%a9%eb%b2%95","status":"publish","type":"post","link":"http:\/\/haisins.synology.me\/wordpress\/?p=1052","title":{"rendered":"Hugepages \uc124\uc815 \ubc29\ubc95"},"content":{"rendered":"

# Hugepage \ub780?<\/P>
\n

\uc77c\ubc18\uc801\uc778 \ucef4\ud4e8\ud305 \uc2dc\uc2a4\ud15c\uc740 \ubb3c\ub9ac\uc801 \uba54\ubaa8\ub9ac \ud06c\uae30\ub97c \uadf9\ubcf5\ud558\uae30 \uc704\ud574 \uac00\uc0c1\uba54\ubaa8\ub9ac \uae30\ubc95\uc744 \uc0ac\uc6a9\ud558\uba70, \uc0c1\uc774\ud55c \ub450 \uba54\ubaa8\ub9ac\ub97c \ub9e4\ud551\ud558\uae30 \uc704\ud574 Page Table\uc774 \uc874\uc7ac\ud558\uace0 Page \ub2e8\uc704\ub85c \uad00\ub9ac\ub429\ub2c8\ub2e4. \ub9ac\ub205\uc2a4 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 \ubcf4\ud1b5 4k\ub85c \ub418\uc5b4\uc788\uc2b5\ub2c8\ub2e4.<\/P>
\n

\ub300\uc6a9\ub7c9 \uba54\ubaa8\ub9ac\ub97c \uc7a5\ucc29\ud55c \uc2dc\uc2a4\ud15c\uc758 \ud6a8\uc728\uc801\uc778 Page Table \uad00\ub9ac\ub97c \uc704\ud574 Kernel 2.6\ubd80\ud130\ub294 HugePage \uae30\uc220\uc774 \ub3c4\uc785\ub418\uc5b4 \ub354 \ud070 Page \ud06c\uae30(\uc608 : 2M ~ 256M)\ub85c \uad00\ub9ac \ud560 \uc218 \uc788\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/P>
\n

 <\/P>
\n

# \uc124\uc815 \ubc29\ubc95<\/P>
\n

1. \uc11c\ubc84\uc5d0 \uc788\ub294 \ubaa8\ub4e0 \uc778\uc2a4\ud134\uc2a4\ub97c \ub6f0\uc6c1\ub2c8\ub2e4. \ub2e8 AMM \uc124\uc815\uc740 \ub418\uc5b4 \uc788\uc73c\uba74 \uc548\ub429\ub2c8\ub2e4.<\/P>
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2. MOS\uc5d0\uc11c Note 401749.1\uc758 \uc2a4\ud06c\ub9bd\ud2b8\ub97c \uc774\uc6a9\ud558\uc5ec \ud544\uc694\ud55c Hugepages \uac12\uc744 \ucc3e\uc2b5\ub2c8\ub2e4.<\/P>$ sh huge.sh
Recommended setting: vm.nr_hugepages = 9222
\n

3 . \uac12\uc744 \uc124\uc815 \ud569\ub2c8\ub2e4.<\/P>
\n

sysctl \u2013w vm.nr_hugepages=9222<\/P>
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4. \uc11c\ubc84\uac00 Reboot \ub418\ub354\ub77c\ub3c4 \uc124\uc815\uac12\uc744 \uc720\uc9c0\ud558\uae30 \uc704\ud574\uc11c\ub294 \/etc\/sysctl.conf\uc5d0 vmm.nr_hugepages
= 9222 \ub97c \uc124\uc815\ud569\ub2c8\ub2e4.<\/P>
\n

5. DBMS \ud30c\ub77c\ubbf8\ud130\uc5d0\uc11c USE_LARGE_PAGES=ONLY \ub85c \uc124\uc815 \ud6c4 DB\ub97c Restart \ud569\ub2c8\ub2e4.<\/P>
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6. \u201c$ grep Huge \/proc\/meminfo\u201d \uba85\ub839\uc5b4\ub85c Huge Page\uc0ac\uc6a9\ub7c9\uc744 \ud655\uc778\ud569\ub2c8\ub2e4.<\/P><\/p>\n","protected":false},"excerpt":{"rendered":"

# Hugepage \ub780? \uc77c\ubc18\uc801\uc778 \ucef4\ud4e8\ud305 \uc2dc\uc2a4\ud15c\uc740 \ubb3c\ub9ac\uc801 \uba54\ubaa8\ub9ac \ud06c\uae30\ub97c \uadf9\ubcf5\ud558\uae30 \uc704\ud574 \uac00\uc0c1\uba54\ubaa8\ub9ac \uae30\ubc95\uc744 \uc0ac\uc6a9\ud558\uba70, \uc0c1\uc774\ud55c \ub450 \uba54\ubaa8\ub9ac\ub97c \ub9e4\ud551\ud558\uae30 \uc704\ud574 Page Table\uc774 \uc874\uc7ac\ud558\uace0 Page \ub2e8\uc704\ub85c \uad00\ub9ac\ub429\ub2c8\ub2e4. \ub9ac\ub205\uc2a4 \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 \ubcf4\ud1b5 4k\ub85c \ub418\uc5b4\uc788\uc2b5\ub2c8\ub2e4. \ub300\uc6a9\ub7c9 \uba54\ubaa8\ub9ac\ub97c \uc7a5\ucc29\ud55c \uc2dc\uc2a4\ud15c\uc758 \ud6a8\uc728\uc801\uc778 Page Table \uad00\ub9ac\ub97c \uc704\ud574 Kernel 2.6\ubd80\ud130\ub294 HugePage \uae30\uc220\uc774 \ub3c4\uc785\ub418\uc5b4 \ub354 \ud070 Page \ud06c\uae30(\uc608 : 2M ~ 256M)\ub85c \uad00\ub9ac \ud560 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"categories":[405],"tags":[],"jetpack_featured_media_url":"","amp_enabled":true,"_links":{"self":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1052"}],"collection":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1052"}],"version-history":[{"count":0,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1052\/revisions"}],"wp:attachment":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1052"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}