{"id":2153,"date":"2025-10-20T16:30:24","date_gmt":"2025-10-20T13:30:24","guid":{"rendered":"https:\/\/saviorhost.com\/blog\/?p=2153"},"modified":"2025-10-20T16:30:24","modified_gmt":"2025-10-20T13:30:24","slug":"swap-memory-doluyor-nedenleri-teshis-adimlari-ve-kalici-cozumler-linux-sunucular-icin","status":"publish","type":"post","link":"https:\/\/saviorhost.com\/blog\/swap-memory-doluyor-nedenleri-teshis-adimlari-ve-kalici-cozumler-linux-sunucular-icin\/","title":{"rendered":"Swap Memory Doluyor: Nedenleri, Te\u015fhis Ad\u0131mlar\u0131 ve Kal\u0131c\u0131 \u00c7\u00f6z\u00fcmler (Linux Sunucular i\u00e7in)"},"content":{"rendered":"

Swap Nedir, Neden Doluyor?<\/h2>\n

Swap; RAM yetersiz kald\u0131\u011f\u0131nda veya \u00e7ekirdek (kernel) seyrek kullan\u0131lan sayfalar\u0131<\/strong> RAM\u2019den \u00e7\u0131kar\u0131p diske yazmaya karar verdi\u011finde devreye giren disk alan\u0131d\u0131r. Linux, RAM h\u00e2l\u00e2 bo\u015f olsa bile<\/strong> \u00f6nbellek\/verimlilik i\u00e7in baz\u0131 sayfalar\u0131 swap\u2019a ta\u015f\u0131yabilir; bu anormal de\u011fildir. Sorun, sistemin s\u00fcrekli swap yapmas\u0131 (thrashing)<\/strong> ve I\/O y\u00fck\u00fcn\u00fcn artmas\u0131d\u0131r. wiki.archlinux.org<\/span>+1<\/span><\/span><\/span><\/a><\/span><\/span><\/p>\n

Swappiness<\/strong> parametresi (vm.swappiness<\/code>), \u00e7ekirde\u011fin swap\u2019a y\u00f6nelme e\u011filimini belirler (0\u2013100). D\u00fc\u015f\u00fck de\u011fer swap\u2019\u0131 azalt\u0131r, y\u00fcksek de\u011fer art\u0131r\u0131r. phoenixNAP | Global IT Services<\/span>+1<\/span><\/span><\/span><\/a><\/span><\/span><\/p>\n

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H\u0131zl\u0131 Kontrol Listesi (5 Dakikada)<\/h2>\n
    \n
  1. \n

    Genel bellek ve swap kullan\u0131m\u0131n\u0131 g\u00f6r\u00fcn:<\/strong><\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    free -h && swapon --show
    \n<\/code><\/div>\n<\/div>\n<\/li>\n
  2. \n

    \u015eu an en \u00e7ok RAM yiyen s\u00fcre\u00e7leri listeleyin:<\/strong><\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    ps aux --sort<\/span>=-%mem | head<\/span> -n 15
    \n<\/code><\/div>\n<\/div>\n<\/li>\n
  3. \n

    Sistemde yo\u011fun swap olup olmad\u0131\u011f\u0131n\u0131 g\u00f6zlemleyin:<\/strong><\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    vmstat 3
    \n# si\/so s\u00fctunlar\u0131 swap-in\/swap-out h\u0131zlar\u0131n\u0131 g\u00f6sterir<\/span>
    \n<\/code><\/div>\n<\/div>\n<\/li>\n
  4. \n

    OOM killer ve bellek hatalar\u0131n\u0131 kontrol edin:<\/strong><\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    dmesg | egrep -i 'out of memory|oom'<\/span> || journalctl -k | egrep -i 'out of memory|oom'<\/span>
    \n<\/code><\/div>\n<\/div>\n<\/li>\n
  5. \n

    Swappiness de\u011ferini \u00f6\u011frenin:<\/strong><\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    cat<\/span> \/proc\/sys\/vm\/swappiness
    \n<\/code><\/div>\n<\/div>\n<\/li>\n<\/ol>\n
    \n

    Not: Linux\u2019un bir miktar swap kullanmas\u0131 normaldir; s\u00fcrekli y\u00fcksek si\/so<\/code> ve y\u00fcksek disk I\/O g\u00f6r\u00fcyorsan\u0131z problem var demektir. Unix & Linux Stack Exchange<\/span><\/span><\/span><\/a><\/span><\/span><\/p>\n<\/blockquote>\n

    \n

    Nedenler (Ger\u00e7ek D\u00fcnya Senaryolar\u0131)<\/h2>\n