{"id":38211,"date":"2026-01-25T18:40:45","date_gmt":"2026-01-25T15:40:45","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/?p=38211"},"modified":"2026-01-25T18:40:45","modified_gmt":"2026-01-25T15:40:45","slug":"linuxta-atop-komutuna-kapsamli-bir-rehber","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/linuxta-atop-komutuna-kapsamli-bir-rehber\/","title":{"rendered":"Linux&#8217;ta atop Komutuna Kapsaml\u0131 Bir Rehber"},"content":{"rendered":"<p><body><\/p>\n<h2>Linux&#8217;ta atop Komutuna Kapsaml\u0131 Bir Rehber<\/h2>\n<p>Linux sistemlerinde performans analizi ve sorun giderme, sistem y\u00f6neticileri ve geli\u015ftiriciler i\u00e7in kritik \u00f6neme sahip g\u00f6revlerdir. Bu s\u00fcre\u00e7te kullan\u0131lan bir\u00e7ok ara\u00e7 bulunmakla birlikte, baz\u0131lar\u0131 belirli alanlarda uzmanla\u015fm\u0131\u015fken, baz\u0131lar\u0131 da daha geni\u015f bir bak\u0131\u015f a\u00e7\u0131s\u0131 sunar. <code>atop<\/code>, ikinci kategoriye giren, kapsaml\u0131 ve etkile\u015fimli bir sistem performans izleme arac\u0131d\u0131r. Bu rehberde, <code>atop<\/code> komutunun ne oldu\u011funu, nas\u0131l kuruldu\u011funu, temel ve geli\u015fmi\u015f kullan\u0131m\u0131n\u0131, \u00e7\u0131kt\u0131lar\u0131n\u0131 nas\u0131l yorumlayaca\u011f\u0131n\u0131z\u0131 ve \u00e7e\u015fitli senaryolarda nas\u0131l kullanabilece\u011finizi detayl\u0131 bir \u015fekilde inceleyece\u011fiz.<\/p>\n<h3>atop Nedir ve Neden Kullanmal\u0131y\u0131z?<\/h3>\n<p><code>atop<\/code> (Advanced System and Process Monitor), Linux sistemlerinde \u00e7al\u0131\u015fan s\u00fcre\u00e7lerin ve sistem kaynaklar\u0131n\u0131n (CPU, bellek, disk I\/O, a\u011f) anl\u0131k ve ge\u00e7mi\u015f performans\u0131n\u0131 detayl\u0131 bir \u015fekilde g\u00f6steren g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r. Geleneksel performans izleme ara\u00e7lar\u0131 olan <code>top<\/code> veya <code>htop<\/code>&#8216;tan farkl\u0131 olarak, <code>atop<\/code> sadece anl\u0131k verileri de\u011fil, ayn\u0131 zamanda belirli bir zaman aral\u0131\u011f\u0131nda toplanan ge\u00e7mi\u015f verileri de analiz etme yetene\u011fine sahiptir. Bu \u00f6zellik, ge\u00e7ici performans sorunlar\u0131n\u0131 veya kaynak s\u0131z\u0131nt\u0131lar\u0131n\u0131 tespit etmede paha bi\u00e7ilmezdir.<\/p>\n<p><code>atop<\/code>&#8216;un temel avantajlar\u0131 \u015funlard\u0131r:<\/p>\n<ul>\n<li><strong>Kapsaml\u0131 Veri Toplama:<\/strong> Sistem genelindeki (CPU, bellek, disk, a\u011f) ve s\u00fcre\u00e7 baz\u0131ndaki t\u00fcm \u00f6nemli performans metriklerini tek bir aray\u00fczde sunar.<\/li>\n<li><strong>Ge\u00e7mi\u015f Performans Analizi:<\/strong> Otomatik olarak veya manuel olarak g\u00fcnl\u00fck dosyalar\u0131na veri kaydeder ve bu g\u00fcnl\u00fck dosyalar\u0131n\u0131 daha sonra analiz etme imkan\u0131 sunar. Bu sayede, sorunun ne zaman ba\u015flad\u0131\u011f\u0131n\u0131 ve nas\u0131l geli\u015fti\u011fini g\u00f6rebilirsiniz.<\/li>\n<li><strong>Detay Seviyesi:<\/strong> S\u00fcre\u00e7lerin ve hatta i\u015f par\u00e7ac\u0131klar\u0131n\u0131n (threads) CPU, bellek, disk I\/O ve a\u011f kullan\u0131m\u0131 gibi \u00e7ok detayl\u0131 bilgilerini g\u00f6sterir. Bu, spesifik bir s\u00fcrecin neden yava\u015flad\u0131\u011f\u0131n\u0131 veya kaynak t\u00fcketti\u011fini anlamak i\u00e7in hayati \u00f6neme sahiptir.<\/li>\n<li><strong>Etkile\u015fimli Aray\u00fcz:<\/strong> Kullan\u0131c\u0131 dostu, etkile\u015fimli bir aray\u00fcze sahiptir. \u00c7e\u015fitli tu\u015f kombinasyonlar\u0131yla farkl\u0131 g\u00f6r\u00fcn\u00fcmler aras\u0131nda ge\u00e7i\u015f yapabilir, verileri s\u0131ralayabilir ve belirli kaynaklara odaklanabilirsiniz.<\/li>\n<li><strong>Kaynak S\u0131z\u0131nt\u0131s\u0131 Tespiti:<\/strong> Bellek veya di\u011fer kaynak s\u0131z\u0131nt\u0131lar\u0131n\u0131, bir s\u00fcrecin zaman i\u00e7indeki kaynak kullan\u0131m\u0131ndaki art\u0131\u015f\u0131 izleyerek tespit etmeye yard\u0131mc\u0131 olur.<\/li>\n<li><strong>A\u011f ve Disk I\/O Detaylar\u0131:<\/strong> A\u011f aray\u00fczleri ve diskler \u00fczerindeki detayl\u0131 I\/O istatistiklerini g\u00f6sterir, bu da I\/O tabanl\u0131 performans sorunlar\u0131n\u0131 te\u015fhis etmeyi kolayla\u015ft\u0131r\u0131r.<\/li>\n<\/ul>\n<h3>Kurulum<\/h3>\n<p><code>atop<\/code> \u00e7o\u011fu Linux da\u011f\u0131t\u0131m\u0131n\u0131n resmi depolar\u0131nda bulunur ve kurulumu olduk\u00e7a basittir. Da\u011f\u0131t\u0131m\u0131n\u0131za g\u00f6re a\u015fa\u011f\u0131daki komutlar\u0131 kullanabilirsiniz:<\/p>\n<h4>Debian\/Ubuntu tabanl\u0131 sistemler:<\/h4>\n<pre><code>sudo apt update\nsudo apt install atop<\/code><\/pre>\n<h4>RHEL\/CentOS\/Fedora tabanl\u0131 sistemler:<\/h4>\n<pre><code>sudo yum install atop<\/code><\/pre>\n<p>veya daha yeni s\u00fcr\u00fcmlerde:<\/p>\n<pre><code>sudo dnf install atop<\/code><\/pre>\n<h4>Arch Linux tabanl\u0131 sistemler:<\/h4>\n<pre><code>sudo pacman -S atop<\/code><\/pre>\n<p>Kurulumdan sonra, <code>atop<\/code> servisini ba\u015flatmak ve sistem ba\u015flang\u0131c\u0131nda otomatik olarak ba\u015flamas\u0131n\u0131 sa\u011flamak isteyebilirsiniz. Bu, <code>atop<\/code>&#8216;un d\u00fczenli aral\u0131klarla sistem performans verilerini g\u00fcnl\u00fck dosyalar\u0131na kaydetmesini sa\u011flar:<\/p>\n<pre><code>sudo systemctl enable atop\nsudo systemctl start atop<\/code><\/pre>\n<h3>Temel Kullan\u0131m<\/h3>\n<p><code>atop<\/code>&#8216;u \u00e7al\u0131\u015ft\u0131rmak i\u00e7in terminale basit\u00e7e <code>atop<\/code> yazman\u0131z yeterlidir:<\/p>\n<pre><code>atop<\/code><\/pre>\n<p>Bu komut, varsay\u0131lan olarak her 1 saniyede bir g\u00fcncellenen etkile\u015fimli bir aray\u00fcz ba\u015flat\u0131r. \u00c7\u0131kt\u0131, iki ana b\u00f6l\u00fcmden olu\u015fur: \u00fcst k\u0131s\u0131mda sistem genelindeki istatistikler ve alt k\u0131s\u0131mda s\u00fcre\u00e7 listesi.<\/p>\n<h4>Etkile\u015fimli Aray\u00fcz ve K\u0131sayollar<\/h4>\n<p><code>atop<\/code>&#8216;un etkile\u015fimli aray\u00fcz\u00fcnde gezinmek i\u00e7in \u00e7e\u015fitli tu\u015f kombinasyonlar\u0131n\u0131 kullanabilirsiniz:<\/p>\n<ul>\n<li><code>g<\/code>: Genel (varsay\u0131lan) g\u00f6r\u00fcn\u00fcm.<\/li>\n<li><code>m<\/code>: Bellek kullan\u0131m\u0131na odaklanma (process listesi bellek kullan\u0131m\u0131na g\u00f6re s\u0131ralan\u0131r).<\/li>\n<li><code>d<\/code>: Disk I\/O kullan\u0131m\u0131na odaklanma.<\/li>\n<li><code>n<\/code>: A\u011f kullan\u0131m\u0131na odaklanma (e\u011fer netatop \u00e7ekirdek mod\u00fcl\u00fc y\u00fckl\u00fcyse daha detayl\u0131).<\/li>\n<li><code>u<\/code>: Kullan\u0131c\u0131 baz\u0131nda CPU ve bellek kullan\u0131m\u0131.<\/li>\n<li><code>p<\/code>: S\u00fcre\u00e7 baz\u0131nda CPU ve bellek kullan\u0131m\u0131 (varsay\u0131lan).<\/li>\n<li><code>v<\/code>: S\u00fcre\u00e7 baz\u0131nda VIRT (sanal bellek) ve RES (ger\u00e7ek bellek) b\u00fcy\u00fcmesi.<\/li>\n<li><code>c<\/code>: S\u00fcre\u00e7 komut sat\u0131rlar\u0131n\u0131 g\u00f6sterme.<\/li>\n<li><code>s<\/code>: Zaman aral\u0131\u011f\u0131n\u0131 de\u011fi\u015ftirme (varsay\u0131lan 1 saniye).<\/li>\n<li><code>t<\/code>: Bir sonraki kayda atla (g\u00fcnl\u00fck dosyalar\u0131n\u0131 okurken).<\/li>\n<li><code>T<\/code>: Bir \u00f6nceki kayda atla (g\u00fcnl\u00fck dosyalar\u0131n\u0131 okurken).<\/li>\n<li><code>l<\/code>: S\u00fcre\u00e7 listesindeki limitleri de\u011fi\u015ftirme (\u00f6rne\u011fin sadece aktif s\u00fcre\u00e7leri g\u00f6sterme).<\/li>\n<li><code>q<\/code>: \u00c7\u0131k\u0131\u015f.<\/li>\n<li><code>?<\/code> veya <code>h<\/code>: Yard\u0131m ekran\u0131n\u0131 g\u00f6sterme.<\/li>\n<\/ul>\n<p>B\u00fcy\u00fck harf k\u0131sayollar\u0131 (<code>M<\/code>, <code>D<\/code>, <code>N<\/code> vb.) genellikle ilgili s\u00fctunlar\u0131 s\u0131ralamak i\u00e7in kullan\u0131l\u0131r.<\/p>\n<h3>atop \u00c7\u0131kt\u0131s\u0131n\u0131 Anlama<\/h3>\n<p><code>atop<\/code> \u00e7\u0131kt\u0131s\u0131, bir\u00e7ok farkl\u0131 metri\u011fi i\u00e7erir. Bunlar\u0131 anlamak, sistem performans\u0131n\u0131 do\u011fru bir \u015fekilde yorumlamak i\u00e7in kritik \u00f6neme sahiptir.<\/p>\n<h4>Header B\u00f6l\u00fcm\u00fc (Sistem Geneli \u0130statistikler)<\/h4>\n<p>Bu b\u00f6l\u00fcm, sistemin genel durumunu \u00f6zetler ve genellikle birden fazla sat\u0131rdan olu\u015fur:<\/p>\n<ul>\n<li><strong>PRC (Process Accounting):<\/strong>\n<ul>\n<li><code>sys<\/code>: Kernel modunda CPU kullanan s\u00fcre\u00e7lerin y\u00fczdesi.<\/li>\n<li><code>user<\/code>: Kullan\u0131c\u0131 modunda CPU kullanan s\u00fcre\u00e7lerin y\u00fczdesi.<\/li>\n<li><code>#proc<\/code>: Toplam s\u00fcre\u00e7 say\u0131s\u0131.<\/li>\n<li><code>#trun<\/code>: \u00c7al\u0131\u015fmaya haz\u0131r (runnable) s\u00fcre\u00e7 say\u0131s\u0131.<\/li>\n<li><code>#tslpi<\/code>: Kesintiye u\u011frayabilir uyku durumundaki s\u00fcre\u00e7 say\u0131s\u0131.<\/li>\n<li><code>#tslpu<\/code>: Kesintiye u\u011frayamaz uyku durumundaki s\u00fcre\u00e7 say\u0131s\u0131.<\/li>\n<li><code>#zombie<\/code>: Zombie s\u00fcre\u00e7 say\u0131s\u0131.<\/li>\n<li><code>#exit<\/code>: \u00c7\u0131k\u0131\u015f yapan s\u00fcre\u00e7 say\u0131s\u0131.<\/li>\n<\/ul>\n<\/li>\n<li><strong>CPU (CPU Utilization):<\/strong>\n<ul>\n<li><code>sys<\/code>: Kernel taraf\u0131ndan kullan\u0131lan CPU y\u00fczdesi.<\/li>\n<li><code>user<\/code>: Kullan\u0131c\u0131 s\u00fcre\u00e7leri taraf\u0131ndan kullan\u0131lan CPU y\u00fczdesi.<\/li>\n<li><code>irq<\/code>: Donan\u0131m ve yaz\u0131l\u0131m kesintileri taraf\u0131ndan kullan\u0131lan CPU y\u00fczdesi.<\/li>\n<li><code>idle<\/code>: Bo\u015fta olan CPU y\u00fczdesi.<\/li>\n<li><code>wait<\/code>: I\/O bekleyen CPU y\u00fczdesi.<\/li>\n<li><code>steal<\/code>: Sanal makinelerde di\u011fer VM&#8217;ler taraf\u0131ndan \u00e7al\u0131nan CPU y\u00fczdesi.<\/li>\n<li><code>guest<\/code>: Sanal makinelerin misafir i\u015fletim sistemlerinde harcanan CPU y\u00fczdesi.<\/li>\n<\/ul>\n<\/li>\n<li><strong>CPL (CPU Load Averages):<\/strong>\n<ul>\n<li><code>avg1<\/code>, <code>avg5<\/code>, <code>avg15<\/code>: Son 1, 5 ve 15 dakikal\u0131k ortalama y\u00fck.<\/li>\n<li><code>csw<\/code>: Saniye ba\u015f\u0131na ba\u011flam anahtarlama say\u0131s\u0131 (context switches).<\/li>\n<li><code>intr<\/code>: Saniye ba\u015f\u0131na kesinti say\u0131s\u0131.<\/li>\n<\/ul>\n<\/li>\n<li><strong>MEM (Memory Utilization):<\/strong>\n<ul>\n<li><code>tot<\/code>: Toplam fiziksel bellek.<\/li>\n<li><code>free<\/code>: Bo\u015f fiziksel bellek.<\/li>\n<li><code>cache<\/code>: Dosya sistemi \u00f6nbelle\u011fi.<\/li>\n<li><code>buff<\/code>: Arabellek \u00f6nbelle\u011fi.<\/li>\n<li><code>slab<\/code>: Kernel veri yap\u0131lar\u0131 i\u00e7in kullan\u0131lan bellek.<\/li>\n<li><code>dirty<\/code>: Diske yaz\u0131lmas\u0131 gereken kirli bellek.<\/li>\n<li><code>vmcom<\/code>: Commit edilmi\u015f sanal bellek (tahmin edilen maksimum).<\/li>\n<li><code>vmlim<\/code>: Sanal bellek limiti (vmcom&#8217;un izin verilen maksimumu).<\/li>\n<\/ul>\n<\/li>\n<li><strong>SWP (Swap Utilization):<\/strong>\n<ul>\n<li><code>tot<\/code>: Toplam swap alan\u0131.<\/li>\n<li><code>free<\/code>: Bo\u015f swap alan\u0131.<\/li>\n<li><code>vmcom<\/code>, <code>vmlim<\/code>: Swap alan\u0131 i\u00e7in de benzer anlamlara gelir.<\/li>\n<\/ul>\n<\/li>\n<li><strong>PAG (Paging Activity):<\/strong>\n<ul>\n<li><code>swin<\/code>: Saniye ba\u015f\u0131na swap&#8217;tan i\u00e7eri al\u0131nan sayfa say\u0131s\u0131.<\/li>\n<li><code>swout<\/code>: Saniye ba\u015f\u0131na swap&#8217;a d\u0131\u015far\u0131 at\u0131lan sayfa say\u0131s\u0131.<\/li>\n<\/ul>\n<\/li>\n<li><strong>LVM\/MDD\/DSK (Disk I\/O):<\/strong>\n<ul>\n<li><code>busy<\/code>: Diskin me\u015fgul oldu\u011fu y\u00fczdesi.<\/li>\n<li><code>read<\/code>: Saniye ba\u015f\u0131na okunan veri miktar\u0131.<\/li>\n<li><code>write<\/code>: Saniye ba\u015f\u0131na yaz\u0131lan veri miktar\u0131.<\/li>\n<li><code>dkrd<\/code>: Saniye ba\u015f\u0131na okuma i\u015flemi say\u0131s\u0131.<\/li>\n<li><code>dkwr<\/code>: Saniye ba\u015f\u0131na yazma i\u015flemi say\u0131s\u0131.<\/li>\n<\/ul>\n<\/li>\n<li><strong>NET (Network Activity):<\/strong>\n<ul>\n<li><code>transport<\/code>, <code>ip<\/code>, <code>tcp<\/code>, <code>udp<\/code>: \u0130lgili protokoller i\u00e7in paket ve bayt say\u0131lar\u0131.<\/li>\n<li><code>raw<\/code>, <code>socket<\/code>: Raw socket ve genel socket istatistikleri.<\/li>\n<li><code>lo<\/code>, <code>eth0<\/code>, <code>wlan0<\/code> vb.: Her a\u011f aray\u00fcz\u00fc i\u00e7in al\u0131nan\/g\u00f6nderilen paket ve bayt say\u0131lar\u0131.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>Proses Listesi B\u00f6l\u00fcm\u00fc<\/h4>\n<p>Bu b\u00f6l\u00fcm, her bir s\u00fcre\u00e7 veya i\u015f par\u00e7ac\u0131\u011f\u0131 i\u00e7in detayl\u0131 istatistikler sunar. S\u00fctunlar, <code>atop<\/code>&#8216;un hangi g\u00f6r\u00fcn\u00fcme ayarland\u0131\u011f\u0131na ba\u011fl\u0131 olarak de\u011fi\u015fir. Baz\u0131 yayg\u0131n s\u00fctunlar \u015funlard\u0131r:<\/p>\n<ul>\n<li><code>PID<\/code>: S\u00fcre\u00e7 ID.<\/li>\n<li><code>TID<\/code>: \u0130\u015f par\u00e7ac\u0131\u011f\u0131 ID (e\u011fer thread g\u00f6r\u00fcn\u00fcm\u00fc aktifse).<\/li>\n<li><code>PPID<\/code>: Ana s\u00fcre\u00e7 ID.<\/li>\n<li><code>EUSER<\/code>: Etkin kullan\u0131c\u0131 ad\u0131.<\/li>\n<li><code>RUSER<\/code>: Ger\u00e7ek kullan\u0131c\u0131 ad\u0131.<\/li>\n<li><code>SYSCPU<\/code>: Kernel modunda kullan\u0131lan CPU y\u00fczdesi.<\/li>\n<li><code>USRCPU<\/code>: Kullan\u0131c\u0131 modunda kullan\u0131lan CPU y\u00fczdesi.<\/li>\n<li><code>VGROW<\/code>: Sanal bellek b\u00fcy\u00fcmesi (kilobayt).<\/li>\n<li><code>RGROW<\/code>: Ger\u00e7ek bellek b\u00fcy\u00fcmesi (kilobayt).<\/li>\n<li><code>RSIZE<\/code>: Ger\u00e7ek bellek kullan\u0131m\u0131 (kilobayt).<\/li>\n<li><code>VSZ<\/code>: Sanal bellek boyutu (kilobayt).<\/li>\n<li><code>RSS<\/code>: Ger\u00e7ek bellek boyutu (kilobayt).<\/li>\n<li><code>EXC<\/code>: S\u00fcrecin exit kodu.<\/li>\n<li><code>S<\/code>: S\u00fcre\u00e7 durumu (R=\u00e7al\u0131\u015f\u0131yor, S=uykuda, D=kesintiye u\u011framaz uyku, Z=zombie, T=durdurulmu\u015f, W=sayfaland\u0131r\u0131lm\u0131\u015f).<\/li>\n<li><code>CPU<\/code>: Toplam CPU kullan\u0131m\u0131 y\u00fczdesi.<\/li>\n<li><code>CMD<\/code>: Komut ad\u0131.<\/li>\n<li><code>CKEY<\/code>: Konteyner ID (e\u011fer konteyner ortam\u0131nda \u00e7al\u0131\u015f\u0131yorsa).<\/li>\n<li><code>NTHR<\/code>: \u0130\u015f par\u00e7ac\u0131\u011f\u0131 say\u0131s\u0131.<\/li>\n<li><code>MEM<\/code>: S\u00fcrecin bellek kullan\u0131m\u0131 y\u00fczdesi.<\/li>\n<li><code>DSK<\/code>: S\u00fcrecin disk I\/O kullan\u0131m\u0131 (okuma\/yazma).<\/li>\n<li><code>NET<\/code>: S\u00fcrecin a\u011f I\/O kullan\u0131m\u0131 (g\u00f6nderilen\/al\u0131nan).<\/li>\n<\/ul>\n<h3>Geli\u015fmi\u015f Kullan\u0131m ve \u00d6zellikler<\/h3>\n<p><code>atop<\/code>, temel kullan\u0131m\u0131n \u00f6tesinde bir\u00e7ok geli\u015fmi\u015f \u00f6zelli\u011fe sahiptir.<\/p>\n<h4>G\u00fcnl\u00fckleme (Logging)<\/h4>\n<p><code>atop<\/code>&#8216;un en g\u00fc\u00e7l\u00fc \u00f6zelliklerinden biri, sistem performans verilerini g\u00fcnl\u00fck dosyalar\u0131na kaydetme yetene\u011fidir. Bu, \u00f6zellikle ge\u00e7ici veya ge\u00e7mi\u015fte meydana gelmi\u015f performans sorunlar\u0131n\u0131 analiz etmek i\u00e7in \u00e7ok kullan\u0131\u015fl\u0131d\u0131r.<\/p>\n<ul>\n<li><strong>Otomatik G\u00fcnl\u00fckleme Servisi:<\/strong> <code>atop<\/code> kurulumuyla birlikte gelen servis, varsay\u0131lan olarak 10 dakikada bir veri toplar ve <code>\/var\/log\/atop<\/code> dizinine kaydeder. G\u00fcnl\u00fck dosyalar\u0131 genellikle 28 g\u00fcn boyunca saklan\u0131r. Bu ayarlar <code>\/etc\/default\/atop<\/code> veya <code>\/etc\/sysconfig\/atop<\/code> (da\u011f\u0131t\u0131ma g\u00f6re de\u011fi\u015fir) dosyas\u0131nda yap\u0131land\u0131r\u0131labilir.<\/li>\n<li><strong>Manuel G\u00fcnl\u00fckleme:<\/strong> Belirli bir s\u00fcre boyunca veri toplamak i\u00e7in <code>-w<\/code> (write) bayra\u011f\u0131n\u0131 kullanabilirsiniz:\n<pre><code>atop -w \/var\/log\/atop\/atop_manual.log 5 10<\/code><\/pre>\n<p>Bu komut, <code>atop_manual.log<\/code> dosyas\u0131na her 5 saniyede bir, toplamda 10 kez veri yazacakt\u0131r.<\/p>\n<\/li>\n<li><strong>G\u00fcnl\u00fck Dosyalar\u0131n\u0131 Okuma:<\/strong> Kaydedilmi\u015f g\u00fcnl\u00fck dosyalar\u0131n\u0131 okumak i\u00e7in <code>-r<\/code> (read) bayra\u011f\u0131n\u0131 kullan\u0131n:\n<pre><code>atop -r \/var\/log\/atop\/atop_20231027<\/code><\/pre>\n<p>Bu komut, belirtilen g\u00fcnl\u00fck dosyas\u0131ndaki verileri etkile\u015fimli olarak g\u00f6sterir. <code>t<\/code> ve <code>T<\/code> tu\u015flar\u0131yla zaman \u00e7izelgesinde ileri ve geri gidebilirsiniz.<\/p>\n<\/li>\n<li><strong>Belirli Zaman Aral\u0131\u011f\u0131na Odaklanma:<\/strong> G\u00fcnl\u00fck dosyas\u0131ndan belirli bir zaman aral\u0131\u011f\u0131ndaki verileri g\u00f6rmek i\u00e7in <code>-b<\/code> (begin) ve <code>-e<\/code> (end) bayraklar\u0131n\u0131 kullanabilirsiniz:\n<pre><code>atop -r atop_20231027 -b 10:00 -e 10:30<\/code><\/pre>\n<p>Bu, sadece 10:00 ile 10:30 aras\u0131ndaki verileri g\u00f6sterir.<\/p>\n<\/li>\n<\/ul>\n<h4>Belirli Kaynaklara Odaklanma<\/h4>\n<p><code>atop<\/code>, farkl\u0131 kaynaklar\u0131n kullan\u0131m\u0131n\u0131 vurgulamak i\u00e7in \u00e7e\u015fitli g\u00f6r\u00fcn\u00fcm modlar\u0131 sunar. Bunlar\u0131 komut sat\u0131r\u0131nda veya etkile\u015fimli modda tu\u015flarla etkinle\u015ftirebilirsiniz:<\/p>\n<ul>\n<li><strong>CPU Kullan\u0131m\u0131:<\/strong> <code>-c<\/code> bayra\u011f\u0131 veya etkile\u015fimli modda <code>g<\/code> tu\u015fu (varsay\u0131lan).<\/li>\n<li><strong>Bellek Kullan\u0131m\u0131:<\/strong> <code>-m<\/code> bayra\u011f\u0131 veya etkile\u015fimli modda <code>M<\/code> tu\u015fu. S\u00fcre\u00e7 listesi bellek kullan\u0131m\u0131na g\u00f6re s\u0131ralan\u0131r.<\/li>\n<li><strong>Disk I\/O Kullan\u0131m\u0131:<\/strong> <code>-d<\/code> bayra\u011f\u0131 veya etkile\u015fimli modda <code>D<\/code> tu\u015fu. S\u00fcre\u00e7 listesi disk I\/O&#8217;ya g\u00f6re s\u0131ralan\u0131r.<\/li>\n<li><strong>A\u011f Kullan\u0131m\u0131:<\/strong> <code>-n<\/code> bayra\u011f\u0131 veya etkile\u015fimli modda <code>N<\/code> tu\u015fu. A\u011f istatistikleri g\u00f6sterilir. (Netatop \u00e7ekirdek mod\u00fcl\u00fc y\u00fckl\u00fc olmal\u0131d\u0131r.)<\/li>\n<li><strong>GPU Kullan\u0131m\u0131:<\/strong> <code>-G<\/code> bayra\u011f\u0131, NVIDIA GPU&#8217;lar i\u00e7in CUDA ve NVML k\u00fct\u00fcphaneleri ile entegrasyon sa\u011flayarak GPU kullan\u0131m\u0131n\u0131 izler.<\/li>\n<li><strong>\u0130plik (Thread) G\u00f6r\u00fcn\u00fcm\u00fc:<\/strong> <code>-y<\/code> bayra\u011f\u0131 ile s\u00fcre\u00e7lerin yan\u0131 s\u0131ra her bir i\u015f par\u00e7ac\u0131\u011f\u0131n\u0131n detaylar\u0131n\u0131 da g\u00f6rebilirsiniz.<\/li>\n<li><strong>Kullan\u0131c\u0131 Baz\u0131nda \u0130statistikler:<\/strong> <code>-u<\/code> bayra\u011f\u0131 ile her kullan\u0131c\u0131n\u0131n toplam CPU, bellek ve disk kullan\u0131m\u0131n\u0131 g\u00f6rebilirsiniz.<\/li>\n<\/ul>\n<h4>S\u0131ralama Se\u00e7enekleri<\/h4>\n<p>Etkile\u015fimli modda, s\u00fcre\u00e7 listesini farkl\u0131 s\u00fctunlara g\u00f6re s\u0131ralamak i\u00e7in b\u00fcy\u00fck harf tu\u015flar\u0131n\u0131 kullanabilirsiniz:<\/p>\n<ul>\n<li><code>C<\/code>: CPU kullan\u0131m\u0131 (varsay\u0131lan).<\/li>\n<li><code>M<\/code>: Bellek kullan\u0131m\u0131.<\/li>\n<li><code>D<\/code>: Disk aktivitesi.<\/li>\n<li><code>N<\/code>: A\u011f aktivitesi.<\/li>\n<li><code>P<\/code>: PID.<\/li>\n<li><code>V<\/code>: Sanal bellek kullan\u0131m\u0131.<\/li>\n<li><code>R<\/code>: Ger\u00e7ek bellek kullan\u0131m\u0131.<\/li>\n<li><code>S<\/code>: S\u00fcre\u00e7 durumu.<\/li>\n<li><code>T<\/code>: \u0130\u015f par\u00e7ac\u0131\u011f\u0131 say\u0131s\u0131.<\/li>\n<\/ul>\n<h4>\u00c7\u0131kt\u0131 Formatlar\u0131 ve Batch Modu<\/h4>\n<p><code>atop<\/code>, komut dosyalar\u0131 veya di\u011fer ara\u00e7larla entegrasyon i\u00e7in farkl\u0131 \u00e7\u0131kt\u0131 formatlar\u0131 sunar:<\/p>\n<ul>\n<li><strong>CSV Format\u0131:<\/strong> <code>-P<\/code> bayra\u011f\u0131 ile belirli alanlar\u0131 CSV format\u0131nda alabilirsiniz. \u00d6rne\u011fin, CPU kullan\u0131m\u0131n\u0131 almak i\u00e7in:\n<pre><code>atop -P CPU -o 1<\/code><\/pre>\n<p>Bu komut, her saniye CPU istatistiklerini CSV format\u0131nda \u00e7\u0131kt\u0131 verir.<\/p>\n<\/li>\n<li><strong>Batch Modu:<\/strong> <code>-b<\/code> bayra\u011f\u0131 ile <code>atop<\/code>&#8216;u etkile\u015fimli olmayan, tek seferlik \u00e7\u0131kt\u0131 veren bir modda \u00e7al\u0131\u015ft\u0131rabilirsiniz. Bu, betiklerde kullan\u0131m i\u00e7in idealdir.\n<pre><code>atop -b -P CPU,MEM,DSK 5 1<\/code><\/pre>\n<p>Bu komut, CPU, bellek ve disk istatistiklerini bir kez, 5 saniye arayla toplar ve \u00e7\u0131kt\u0131 verir.<\/p>\n<\/li>\n<\/ul>\n<h3>atop Kullan\u0131m Senaryolar\u0131<\/h3>\n<p><code>atop<\/code>, \u00e7e\u015fitli performans sorunlar\u0131n\u0131 te\u015fhis etmek ve sistem sa\u011fl\u0131\u011f\u0131n\u0131 izlemek i\u00e7in kullan\u0131labilir:<\/p>\n<ul>\n<li><strong>Performans Sorunlar\u0131n\u0131 Te\u015fhis Etme:<\/strong>\n<ul>\n<li><strong>Y\u00fcksek CPU Kullan\u0131m\u0131:<\/strong> <code>atop<\/code>&#8216;u \u00e7al\u0131\u015ft\u0131r\u0131n ve <code>C<\/code> tu\u015funa basarak s\u00fcre\u00e7leri CPU kullan\u0131m\u0131na g\u00f6re s\u0131ralay\u0131n. Hangi s\u00fcrecin CPU&#8217;yu yo\u011fun kulland\u0131\u011f\u0131n\u0131 hemen g\u00f6rebilirsiniz. Header b\u00f6l\u00fcm\u00fcndeki <code>CPU sys<\/code> ve <code>CPU user<\/code> de\u011ferleri, sorunun kernel mi yoksa kullan\u0131c\u0131 uygulamas\u0131 kaynakl\u0131 m\u0131 oldu\u011funu g\u00f6sterir.<\/li>\n<li><strong>Bellek S\u0131z\u0131nt\u0131lar\u0131 veya T\u0131kan\u0131kl\u0131klar\u0131:<\/strong> <code>M<\/code> tu\u015funa basarak bellek kullan\u0131m\u0131na odaklan\u0131n. <code>VGROW<\/code> ve <code>RGROW<\/code> s\u00fctunlar\u0131, s\u00fcre\u00e7lerin zaman i\u00e7inde bellek t\u00fcketimindeki art\u0131\u015f\u0131 g\u00f6sterir. E\u011fer bir s\u00fcre\u00e7 s\u00fcrekli bellek b\u00fcy\u00fct\u00fcyorsa, bu bir bellek s\u0131z\u0131nt\u0131s\u0131na i\u015faret edebilir. <code>MEM free<\/code> ve <code>SWP free<\/code> de\u011ferleri, sistemin genel bellek durumunu g\u00f6sterir.<\/li>\n<li><strong>Disk I\/O Sorunlar\u0131:<\/strong> <code>D<\/code> tu\u015funa basarak disk aktivitesine odaklan\u0131n. <code>DSK busy<\/code> y\u00fczdesi, disklerin ne kadar me\u015fgul oldu\u011funu g\u00f6sterir. S\u00fcre\u00e7 listesindeki <code>DSK<\/code> s\u00fctunu, hangi s\u00fcrecin diski en \u00e7ok kulland\u0131\u011f\u0131n\u0131 ortaya \u00e7\u0131kar\u0131r. Bu, yava\u015f depolama veya yo\u011fun disk eri\u015fimi gerektiren uygulamalar i\u00e7in kritik bir g\u00f6stergedir.<\/li>\n<li><strong>A\u011f T\u0131kan\u0131kl\u0131klar\u0131:<\/strong> <code>N<\/code> tu\u015funa basarak a\u011f istatistiklerini inceleyin. Hangi a\u011f aray\u00fcz\u00fcn\u00fcn (<code>eth0<\/code>, <code>wlan0<\/code> vb.) en \u00e7ok trafi\u011fi i\u015fledi\u011fini ve paket kay\u0131plar\u0131 olup olmad\u0131\u011f\u0131n\u0131 g\u00f6rebilirsiniz. E\u011fer <code>netatop<\/code> mod\u00fcl\u00fc y\u00fckl\u00fcyse, s\u00fcre\u00e7 baz\u0131nda a\u011f trafi\u011fi de izlenebilir.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Anormal Aktiviteyi Tespit Etme:<\/strong> Beklenmedik bir s\u00fcre\u00e7 mi y\u00fcksek kaynak kullan\u0131yor? <code>atop<\/code> ile anl\u0131k olarak bu t\u00fcr sapmalar\u0131 tespit edebilir ve hatta g\u00fcnl\u00fck dosyalar\u0131n\u0131 inceleyerek anormal aktivitenin ne zaman ba\u015flad\u0131\u011f\u0131n\u0131 ve ne kadar s\u00fcrd\u00fc\u011f\u00fcn\u00fc belirleyebilirsiniz.<\/li>\n<li><strong>Ge\u00e7mi\u015f Performans\u0131 Analiz Etme:<\/strong> Bir kullan\u0131c\u0131 bir saat \u00f6nce sistemin yava\u015flad\u0131\u011f\u0131n\u0131 bildirdi\u011finde, <code>atop<\/code> g\u00fcnl\u00fck dosyalar\u0131 kurtar\u0131c\u0131n\u0131z olabilir. \u0130lgili g\u00fcnl\u00fck dosyas\u0131n\u0131 <code>-r<\/code> bayra\u011f\u0131yla a\u00e7\u0131n ve <code>-b<\/code>, <code>-e<\/code> bayraklar\u0131yla veya <code>t<\/code>, <code>T<\/code> tu\u015flar\u0131yla ilgili zaman dilimine gidin.<\/li>\n<li><strong>Kapasite Planlamas\u0131:<\/strong> Uzun s\u00fcreli <code>atop<\/code> g\u00fcnl\u00fckleri, sistem kaynaklar\u0131n\u0131n zaman i\u00e7indeki kullan\u0131m e\u011filimlerini anlamak i\u00e7in kullan\u0131labilir. Bu veriler, gelecekteki donan\u0131m y\u00fckseltmeleri veya kaynak tahsis kararlar\u0131 i\u00e7in de\u011ferli bilgiler sa\u011flar.<\/li>\n<\/ul>\n<h3>atop ve Di\u011fer Ara\u00e7lar<\/h3>\n<p>Linux performans izleme ara\u00e7lar\u0131 d\u00fcnyas\u0131nda <code>atop<\/code>&#8216;un yeri nedir? Di\u011fer pop\u00fcler ara\u00e7larla kar\u015f\u0131la\u015ft\u0131ral\u0131m:<\/p>\n<ul>\n<li><strong><code>top<\/code>\/<code>htop<\/code>:<\/strong>\n<ul>\n<li><strong>Fark:<\/strong> <code>top<\/code> ve <code>htop<\/code>, anl\u0131k s\u00fcre\u00e7 ve sistem genelindeki CPU\/bellek kullan\u0131m\u0131n\u0131 g\u00f6steren harika ara\u00e7lard\u0131r. Ancak, ge\u00e7mi\u015f veri toplama yetenekleri yoktur ve disk\/a\u011f I\/O gibi detayl\u0131 metrikleri <code>atop<\/code> kadar kapsaml\u0131 sunmazlar. <code>htop<\/code> daha kullan\u0131c\u0131 dostu bir aray\u00fcze sahiptir.<\/li>\n<li><strong>Ne Zaman Kullan\u0131l\u0131r:<\/strong> H\u0131zl\u0131ca anl\u0131k durumu kontrol etmek veya en \u00e7ok kaynak t\u00fcketen s\u00fcre\u00e7leri g\u00f6rmek i\u00e7in idealdir.<\/li>\n<\/ul>\n<\/li>\n<li><strong><code>vmstat<\/code>:<\/strong>\n<ul>\n<li><strong>Fark:<\/strong> <code>vmstat<\/code>, sistem genelindeki bellek, takas (swap), CPU ve I\/O istatistiklerini verir ancak s\u00fcre\u00e7 baz\u0131nda detayl\u0131 bilgi sa\u011flamaz. Ge\u00e7mi\u015f veri toplama yetene\u011fi yoktur.<\/li>\n<li><strong>Ne Zaman Kullan\u0131l\u0131r:<\/strong> Sistem genelindeki bellek ve CPU t\u0131kan\u0131kl\u0131klar\u0131n\u0131 h\u0131zl\u0131ca te\u015fhis etmek i\u00e7in.<\/li>\n<\/ul>\n<\/li>\n<li><strong><code>iostat<\/code>:<\/strong>\n<ul>\n<li><strong>Fark:<\/strong> <code>iostat<\/code>, disk I\/O istatistiklerine odaklanm\u0131\u015ft\u0131r. Disklerin me\u015fguliyetini, okuma\/yazma h\u0131zlar\u0131n\u0131 ve I\/O i\u015flemlerinin say\u0131s\u0131n\u0131 g\u00f6sterir. S\u00fcre\u00e7 baz\u0131nda bilgi vermez.<\/li>\n<li><strong>Ne Zaman Kullan\u0131l\u0131r:<\/strong> Disk performans sorunlar\u0131n\u0131 derinlemesine incelemek i\u00e7in.<\/li>\n<\/ul>\n<\/li>\n<li><strong><code>sar<\/code> (System Activity Reporter):<\/strong>\n<ul>\n<li><strong>Fark:<\/strong> <code>sar<\/code>, <code>atop<\/code> gibi ge\u00e7mi\u015f performans verilerini toplayabilir ve raporlayabilir. Genellikle sistem y\u00f6neticileri taraf\u0131ndan uzun vadeli performans analizi i\u00e7in kullan\u0131l\u0131r. Ancak, <code>atop<\/code>&#8216;un etkile\u015fimli aray\u00fcz\u00fc ve anl\u0131k detay seviyesi <code>sar<\/code>&#8216;a g\u00f6re daha kullan\u0131c\u0131 dostu olabilir. <code>sar<\/code> genellikle \u00e7\u0131kt\u0131lar\u0131 yorumlamak i\u00e7in daha fazla \u00f6\u011frenme e\u011frisi gerektirir.<\/li>\n<li><strong>Ne Zaman Kullan\u0131l\u0131r:<\/strong> Uzun vadeli trend analizi ve kapasite planlamas\u0131 i\u00e7in.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Neden <code>atop<\/code> \u00d6ne \u00c7\u0131k\u0131yor:<\/strong> <code>atop<\/code>, bu ara\u00e7lar\u0131n \u00e7o\u011funun en iyi \u00f6zelliklerini bir araya getirir. Hem anl\u0131k hem de ge\u00e7mi\u015f verileri tek bir etkile\u015fimli aray\u00fczde sunar, sistem genelinden s\u00fcre\u00e7 ve hatta i\u015f par\u00e7ac\u0131\u011f\u0131 seviyesine kadar detayl\u0131 bilgi sa\u011flar. Bu &#8220;hepsi bir arada&#8221; yakla\u015f\u0131m, <code>atop<\/code>&#8216;u kapsaml\u0131 bir sorun giderme ve performans izleme arac\u0131 olarak vazge\u00e7ilmez k\u0131lar.<\/p>\n<h3>S\u0131k\u00e7a Sorulan Sorular (SSS)<\/h3>\n<h4>atop \u00e7ok fazla kaynak t\u00fcketiyor mu?<\/h4>\n<p>Hay\u0131r, <code>atop<\/code> olduk\u00e7a verimli \u00e7al\u0131\u015f\u0131r. Varsay\u0131lan olarak 10 dakikada bir veri toplayan g\u00fcnl\u00fckleme servisi, sistem \u00fczerinde g\u00f6zle g\u00f6r\u00fcl\u00fcr bir y\u00fck olu\u015fturmaz. Etkile\u015fimli modda \u00e7al\u0131\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, toplad\u0131\u011f\u0131 ve g\u00f6sterdi\u011fi veri miktar\u0131na k\u0131yasla CPU ve bellek kullan\u0131m\u0131 d\u00fc\u015f\u00fckt\u00fcr.<\/p>\n<h4>G\u00fcnl\u00fck dosyalar\u0131 ne kadar yer kaplar? Nas\u0131l y\u00f6netilir?<\/h4>\n<p>G\u00fcnl\u00fck dosyalar\u0131n\u0131n boyutu, toplama s\u0131kl\u0131\u011f\u0131na ve sistem aktivitesine ba\u011fl\u0131d\u0131r. Varsay\u0131lan olarak, <code>atop<\/code> g\u00fcnl\u00fck dosyalar\u0131n\u0131 28 g\u00fcn boyunca saklar ve daha eski dosyalar\u0131 otomatik olarak siler. Bu ayar, <code>\/etc\/default\/atop<\/code> (veya <code>\/etc\/sysconfig\/atop<\/code>) dosyas\u0131ndaki <code>LOGINTERVAL<\/code> ve <code>LOGGENERATIONS<\/code> parametreleri de\u011fi\u015ftirilerek ayarlanabilir. Ayr\u0131ca, <code>logrotate<\/code> gibi ara\u00e7larla da entegre edilebilir.<\/p>\n<h4>atop \u00e7\u0131kt\u0131s\u0131ndaki baz\u0131 k\u0131saltmalar\u0131n anlam\u0131 nedir?<\/h4>\n<p>Makalenin &#8220;atop \u00c7\u0131kt\u0131s\u0131n\u0131 Anlama&#8221; b\u00f6l\u00fcm\u00fcnde detayl\u0131ca a\u00e7\u0131klanm\u0131\u015ft\u0131r. Genel olarak, <code>atop<\/code>&#8216;un yard\u0131m ekran\u0131 (<code>?<\/code> veya <code>h<\/code> tu\u015fu) veya man sayfas\u0131 (<code>man atop<\/code>) t\u00fcm k\u0131saltmalar\u0131n a\u00e7\u0131klamalar\u0131n\u0131 i\u00e7erir.<\/p>\n<h4>atop root olmadan \u00e7al\u0131\u015f\u0131r m\u0131?<\/h4>\n<p><code>atop<\/code> komutunu normal bir kullan\u0131c\u0131 olarak \u00e7al\u0131\u015ft\u0131rabilirsiniz, ancak baz\u0131 detayl\u0131 metrikleri (\u00f6zellikle kernel seviyesindeki veya di\u011fer kullan\u0131c\u0131lar\u0131n s\u00fcre\u00e7lerine ait olanlar\u0131) g\u00f6rebilmek i\u00e7in root yetkilerine sahip olman\u0131z \u00f6nerilir. G\u00fcnl\u00fckleme servisi ise genellikle root yetkileriyle \u00e7al\u0131\u015f\u0131r.<\/p>\n<h3>Sonu\u00e7<\/h3>\n<p><code>atop<\/code>, Linux sistemlerinde performans analizi ve sorun giderme i\u00e7in vazge\u00e7ilmez bir ara\u00e7t\u0131r. Kapsaml\u0131 veri toplama yetene\u011fi, anl\u0131k ve ge\u00e7mi\u015f performans analizi imkan\u0131, detayl\u0131 s\u00fcre\u00e7 ve sistem istatistikleri sunmas\u0131, onu di\u011fer bir\u00e7ok performans izleme arac\u0131ndan ay\u0131r\u0131r. Bir sistem y\u00f6neticisi, DevOps m\u00fchendisi veya hatta bir geli\u015ftirici olarak, <code>atop<\/code>&#8216;u ara\u00e7 setinize eklemek, sistemlerinizin sa\u011fl\u0131\u011f\u0131n\u0131 ve performans\u0131n\u0131 anlamak i\u00e7in size \u00f6nemli bir avantaj sa\u011flayacakt\u0131r. Bu rehberdeki bilgileri kullanarak, <code>atop<\/code>&#8216;un g\u00fcc\u00fcn\u00fc tam olarak ortaya \u00e7\u0131karabilir ve kar\u015f\u0131la\u015ft\u0131\u011f\u0131n\u0131z performans sorunlar\u0131n\u0131 daha etkili bir \u015fekilde \u00e7\u00f6zebilirsiniz.<\/p>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"Linux&#8217;ta atop Komutuna Kapsaml\u0131 Bir Rehber\nLinux sistemlerinde performans analizi ve sorun giderme, sistem y\u00f6neticileri ve geli\u015ftiriciler i\u00e7in kr","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[241],"tags":[],"class_list":{"0":"post-38211","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-linux","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - 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