{"id":15250,"date":"2022-04-23T10:48:03","date_gmt":"2022-04-23T07:48:03","guid":{"rendered":"https:\/\/kutaybilen.com.tr\/?p=15250"},"modified":"2022-04-23T10:48:03","modified_gmt":"2022-04-23T07:48:03","slug":"islemcilerdeki-cekirdek-nedir-ne-ise-fayda","status":"publish","type":"post","link":"https:\/\/kutaybilen.com.tr\/?p=15250","title":{"rendered":"\u0130\u015flemcilerdeki \u2018\u00c7ekirdek\u2019 Nedir, Ne \u0130\u015fe Fayda?"},"content":{"rendered":"<p>\u0130\u015flemci ara\u015ft\u0131rmas\u0131 yaparken \u00e7ekirdek terimiyle s\u0131k\u00e7a kar\u015f\u0131la\u015f\u0131yorsunuzdur. Bu y\u00fczden \u00e7ekirde\u011fin ne oldu\u011funu merak etmi\u015f olabilirsiniz. Akl\u0131n\u0131zda bulunan <strong>t\u00fcm sorular\u0131 <\/strong>cevaplamaya \u00e7al\u0131\u015faca\u011f\u0131z.Ak\u0131ll\u0131 telefon ve bilgisayar \u00fczere elektronik ayg\u0131tlarda bulunan en de\u011ferli mod\u00fcllerden birisi i\u015flemci.<\/p>\n<p>\u00c7ekirdek ise i\u015flemcinin en k\u0131ymetli kesimi olarak ge\u00e7iyor, fakat sadece \u00e7ekirde\u011fin tarifini yapmak k\u00e2fi olmad\u0131\u011f\u0131 i\u00e7in, \u00e7ekirdek \u00fczerinden ger\u00e7ekle\u015ftirilen \u201c<strong>multithreading<\/strong>\u201d \u00fczere s\u00fcre\u00e7leri de a\u00e7\u0131klayaca\u011f\u0131z. A\u00e7\u0131klay\u0131c\u0131 olmas\u0131 ismine birinci olarak bir i\u015flemcinin ne i\u015fe yarad\u0131\u011f\u0131na bakal\u0131m.<\/p>\n<p><b>\u0130\u015flemci (CPU) nedir?<\/b><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.webtekno.com\/images\/editor\/default\/0002\/36\/34b56214f0ea6cd0600efaf1f6285f4e3084533e.jpeg\"\/><\/p>\n<p>\u0130ngilizce\u2019de \u201c<strong>Central Processing Unit<\/strong>\u201d olarak isimlendirilen, T\u00fcrk\u00e7e\u2019ye \u201cMerkezi S\u00fcre\u00e7 Birimi\u201d olarak ge\u00e7en lakin k\u0131saca i\u015flemci olarak bildi\u011fimiz mod\u00fcl, bilgisayar\u0131n beynidir. Bilgisayarda yap\u0131lan t\u00fcm s\u00fcre\u00e7leri ger\u00e7ekle\u015ftiren ana mod\u00fcld\u00fcr. \u0130\u015fletim sistemi ve uygulamalar i\u015flemci \u00fczerinde \u00e7al\u0131\u015f\u0131r. \u0130\u015flemciyle uygulamalar ortas\u0131nda daima olarak bilgi giri\u015fi ve \u00e7\u0131k\u0131\u015f\u0131 ger\u00e7ekle\u015fir. \u0130\u015flemci uygulamadan gelen datay\u0131 i\u015fleyerek kullan\u0131c\u0131ya \u00e7\u0131kt\u0131s\u0131n\u0131 verir.<\/p>\n<p>Her i\u015flemcide en az bir <strong>\u00e7ekirdek<\/strong> bulunur. Bu \u00e7ekirdek, i\u015flemcinin i\u00e7inde bulunan yongaya verilen isimdir. Uzun bir vakit boyunca i\u015flemcilerde sadece bir \u00e7ekirdek vard\u0131. Fakat \u015fimdilerde neredeyse her i\u015flemcide en az\u0131ndan iki tane \u00e7ekirdek bulunuyor. \u0130\u015flemciler sahip olduklar\u0131 \u00e7ekirdek say\u0131s\u0131na nazaran isimlendirilir.\u00a0<\/p>\n<ul>\n<li><strong>\u00c7ift <\/strong>\u00e7ekirdek = <strong>dual<\/strong>-core\u00a0<\/li>\n<li><strong>D\u00f6rt <\/strong>\u00e7ekirdek = <strong>quad<\/strong>-core<\/li>\n<li><strong>Alt\u0131 <\/strong>\u00e7ekirdek = <strong>hexa<\/strong>-core<\/li>\n<li><strong>Sekiz <\/strong>\u00e7ekirdek = <strong>octa<\/strong>-core<\/li>\n<\/ul>\n<p><b>\u0130\u015flemcilerdeki <em>\u00e7ekirdek <\/em>nedir, ne i\u015fe fayda?<\/b><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.webtekno.com\/images\/editor\/default\/0002\/36\/f9c35f9b0fd30494f3accd25b11effa1f002b4b8.jpeg\"\/><\/p>\n<p>\u0130\u015flemciler i\u00e7in bilgisayar\u0131n beyni demi\u015ftik. \u00c7ekirdekler de i\u015flemcilerin beyni pozisyonundad\u0131r. \u00c7ekirdekler, i\u015flemci taraf\u0131ndan yap\u0131lan s\u00fcre\u00e7leri <strong>as\u0131l olarak <\/strong>yapan bile\u015fendir. Her bir \u00e7ekirdek farkl\u0131 bir s\u00fcre\u00e7le e\u015f vakitli olarak g\u00f6revlendirilebilir. Yani bir i\u015flemci ne kadar fazla \u00e7ekirde\u011fe sahipse o kadar s\u00fcratli \u00e7al\u0131\u015fma kapasitesine sahip olur.\u00a0<\/p>\n<p>Her \u00e7ekirdek farkl\u0131 vazifeleri yerine getirebilece\u011fi \u00fczere, birden fazla \u00e7ekirdek t\u0131pk\u0131 vazifesi yerine getirmek i\u00e7in paralel bir halde de kullan\u0131labilir. Hatta her \u00e7ekirdek kendi i\u00e7inde farkl\u0131 mod\u00fcllere ayr\u0131larak s\u00fcre\u00e7leri daha s\u00fcratli bir halde ger\u00e7ekle\u015ftirebilir. Bu s\u00fcrece \u201cMultithreading\u201d denir. Bu sebeple i\u015flemci \u00e7ekirdeklerinden bahsederken \u201c<strong>Thread<\/strong>\u201d kavram\u0131ndan bahsetmemek olmaz. Art\u0131k dilerseniz bu kavrama da de\u011finelim.<\/p>\n<p><b>Thread ve Multithreading nedir?<\/b><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.webtekno.com\/images\/editor\/default\/0002\/36\/bcf58d96bf47e55eb2d8abfa5308c3175ff8c85b.jpeg\"\/><\/p>\n<p>T\u00fcrk\u00e7e\u2019de &#8220;i\u015f par\u00e7ac\u0131\u011f\u0131&#8221; olarak ge\u00e7en \u201cThread\u201d, fizik\u00ee \u00e7ekirdeklerden olu\u015fturulan sanal \u00e7ekirdeklerdir. Yani i\u015flemcide ger\u00e7ek bir mod\u00fcl olarak yer alan \u00e7ekirdek kullan\u0131larak sanal ortamda kullan\u0131lmas\u0131 \u00fczere yarat\u0131lan bir \u00e7ekirdektir.<\/p>\n<p>Multithread ise her bir fizik\u00ee \u00e7ekirde\u011fi ikiye b\u00f6lerek, \u00e7ekirdek ba\u015f\u0131na iki\u015fer tane \u201cThread\u201d \u00fcretme s\u00fcrecine verilen isimdir. Intel bu s\u00fcre\u00e7 i\u00e7in \u201c<strong>hyper-threading<\/strong>\u201d ismini kullan\u0131rken, AMD \u201c<strong>simultaneous multithreading <\/strong>(SMT)\u201d ismini kullan\u0131r. Asl\u0131nda iki s\u00fcre\u00e7 de birebir maksat i\u00e7in kullan\u0131l\u0131r. B\u00fcsb\u00fct\u00fcn birebir \u015feyi tabir ederler.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.webtekno.com\/images\/editor\/default\/0002\/36\/f4386a99e333d0300024dba3b1bdc3dfa5e3ecc0.jpeg\"\/><\/p>\n<p>\u00d6rnek vererek daha g\u00fczel a\u00e7\u0131klayal\u0131m. AMD marka <strong>4 \u00e7ekirdekli<\/strong> bir i\u015flemci, \u201csimultaneous multithreading\u201d yaparak <strong>8 tane<\/strong> \u201cThread\u201d olu\u015fturur. Intel marka 4 \u00e7ekirdekli bir i\u015flemci ise \u201chyper-threading\u201d yaparak 8 tane \u201cThread\u201d olu\u015fturur. Nat\u00fcrel ki \u00e7ekirdek ve \u201cThread\u201d ortas\u0131nda g\u00fc\u00e7 farklar\u0131 vard\u0131r.\u00a0<\/p>\n<p>Fizik\u00ee bir \u00e7ekirdek, kendisinden meydana getirilmi\u015f \u201cThread\u201dlerden daha s\u00fcratli \u00e7al\u0131\u015f\u0131r. Lakin uygulamalar \u201cThread\u201d kullanarak s\u00fcreci farkl\u0131 kesimlere b\u00f6ld\u00fc\u011f\u00fc i\u00e7in \u201cThread\u201d kullan\u0131m\u0131 s\u00fcre\u00e7 surat\u0131n\u0131 <strong>artt\u0131ran <\/strong>bir form\u00fcld\u00fcr.<\/p>\n<p><b>\u0130\u015flemcinin Saat Surat\u0131 (Clock Speed) nedir?<\/b><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.webtekno.com\/images\/editor\/default\/0002\/36\/105776ccea4a61a1bfc736d3366c30e1eae098d3.jpeg\"\/><\/p>\n<p>\u0130\u015flemciler sadece \u00e7ekirdek say\u0131s\u0131na nazaran de\u011ferlendirilmemelidir. Zira her bilgisayar mod\u00fcl\u00fcnde oldu\u011fu \u00fczere i\u015flemciler de birbirini dayanaklar \u00f6zellikte farkl\u0131 niteliklere sahiptir. <strong>GHz <\/strong>(<strong>Gigahertz<\/strong>) k\u0131ymetiyle g\u00f6sterilen saat surat\u0131 da bu niteliklerden biridir. Pekala yayg\u0131n olarak i\u015flemcileri k\u0131ymetlendirmekte kullan\u0131lan saat surat\u0131 ne manaya gelir?<\/p>\n<p>Saat surat\u0131 terimi, i\u015flemcilerin bir saniyede ger\u00e7ekle\u015ftirebilece\u011fi en y\u00fcksek s\u00fcre\u00e7 adedini tabir eder. \u0130\u015flemcide bulunan \u00e7ekirdekler taraf\u0131ndan ger\u00e7ekle\u015ftirilen her bir s\u00fcre\u00e7, 1 Hertz k\u0131ymetiyle belirtilir. Yani 3.0 GHz saat surat\u0131na sahip bir i\u015flemci, 3,000,000,000 (<strong>\u00fc\u00e7 milyar<\/strong>) s\u00fcreci bir saniyede ger\u00e7ekle\u015ftirebilir.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.webtekno.com\/images\/editor\/default\/0002\/36\/5640c4b61d942c0ecb53685c8189ed3c0fd041b0.jpeg\"\/><\/p>\n<p>\u0130\u015flemcilerde belirtilen saat surat\u0131 her \u00e7ekirdek taraf\u0131ndan farkl\u0131 ayr\u0131 yerine getirilir. Saat surat\u0131 <strong>3.0 GHz<\/strong> olan bir i\u015flemcide, her \u00e7ekirdek saniyede \u00fc\u00e7 milyar s\u00fcre\u00e7 yerine getirme g\u00fcc\u00fcne sahiptir. K\u0131saca bir \u00f6rnek \u00fczerinden de a\u00e7\u0131klayal\u0131m. 2.0 GHz surat\u0131nda, \u00e7ift \u00e7ekirdekli bir i\u015flemci, 3.0 GHz surat\u0131nda, tek \u00e7ekirdekli bir i\u015flemciden daha s\u00fcratlidir.<\/p>\n<p>\u0130\u015flemcilerde bulunan \u00e7ekirde\u011fin ne oldu\u011funu, i\u015flemci i\u00e7inde ne i\u015fe yarad\u0131klar\u0131n\u0131 a\u00e7\u0131klad\u0131\u011f\u0131m\u0131z yaz\u0131m\u0131z\u0131n sonuna geldik. \u015eayet hususla ilgili sormak istedi\u011finiz sorular varsa bizimle <strong>yorumlar <\/strong>k\u0131sm\u0131ndan payla\u015fabilirsiniz.<\/p>\n<div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u0130\u015flemci ara\u015ft\u0131rmas\u0131 yaparken \u00e7ekirdek terimiyle s\u0131k\u00e7a kar\u015f\u0131la\u015f\u0131yorsunuzdur. Bu y\u00fczden \u00e7ekirde\u011fin ne oldu\u011funu merak etmi\u015f olabilirsiniz. Akl\u0131n\u0131zda &#8230;<\/p>\n","protected":false},"author":1,"featured_media":15251,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[851],"tags":[1435,1623,974,901,2426],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/15250"}],"collection":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=15250"}],"version-history":[{"count":1,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/15250\/revisions"}],"predecessor-version":[{"id":15252,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/15250\/revisions\/15252"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/media\/15251"}],"wp:attachment":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}