榫欐簮鏈熷垔缃?/p>
http://www.qikan.com.cn
鍩轰簬
EPOLL
鏈哄埗鐨?/p>
Linux
缃戠粶鏈嶅姟鍣ㄨ璁?/p>
涓庡疄鐜?/p>
浣滆�咃細浣曞嚡
鏉ユ簮锛氥�婄數瀛愭妧鏈笌杞欢宸ョ▼銆?/p>
2016
骞寸
02
鏈?/p>
鎽?/p>
瑕?/p>
绗旇�呭湪寮�鍙戜竴娆?/p>
Linux
缃戠粶鏈嶅姟鍣ㄦ椂锛岀粡杩囧澶氱鏈哄埗鐨勬瘮杈冿紝鍙戠幇
EPOLL
鏈哄埗鏁堢巼鏈�
楂橈紝璇ユ満鍒跺彲浠ユ弧瓒冲苟鍙戝鐞嗘捣閲忕綉缁滆繛鎺ョ殑瑕佹眰锛岄潪甯搁�傚悎楂樻�ц兘鏈嶅姟鍣ㄧ殑璁捐瑕佹眰銆傚洜姝?/p>
绗旇�呭
EPOLL
鏈哄埗杩涜浜嗘繁鍏ョ殑鐮旂┒锛屽苟涓旇璁′簡涓�娆惧熀浜?/p>
EPOLL
鏈哄埗鐨勯珮鏁堢殑
Linux
缃戠粶
鏈嶅姟鍣ㄣ�傚湪瀹為檯搴旂敤涓紝璇ユ湇鍔″櫒鏈夌潃绋冲畾銆侀珮鏁堢殑鐗圭偣銆?/p>
銆愬叧閿瘝銆?/p>
EPOLL Linux
鏈嶅姟鍣?/p>
1
寮曡█
绗旇�呭湪瀹為檯宸ヤ綔涓紝闇�瑕佸紑鍙戜竴娆惧熀浜?/p>
Linux
鐨勯珮鎬ц兘缃戠粶鏈嶅姟鍣紝璇ユ湇鍔″櫒涓庡墠绔殑澶?/p>
绉嶅祵鍏ュ紡璁惧閫氳繃鏈夌嚎缃戠粶鎴栬�呮棤绾跨綉缁滆繛鎺ャ�傚湪瀵?/p>
Linux
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EPOLL
鏈哄埗銆傚湪缁忚繃鍑犱釜鏈堢殑璋冭瘯銆佹敼杩涗箣鍚庯紝鏈嶅姟鍣ㄥ彲浠ュ噯纭�佺ǔ瀹氥�侀珮鏁堢殑宸ヤ綔銆傚湪妯?/p>
鎷熸祴璇曚腑锛岃鏈嶅姟鍣ㄥ彲浠ョǔ瀹氱殑杩炴帴涓庢帶鍒跺墠绔?/p>
10
涓囦釜璁惧銆傚彇寰椾簡鑹ソ鐨勬晥鏋溿�?/p>
2 Linux
涓?/p>
I/O
澶氳矾澶嶇敤鎶�鏈垎鏋?/p>
Linux
涓婄殑
I/O
澶氳矾澶嶇敤鎶�鏈富瑕佹湁
select
妯″瀷銆?/p>
poll
妯″瀷鍜?/p>
epoll
妯″瀷銆?/p>
select
妯″瀷鏈�澶х殑缂虹偣鏄渶澶у苟鍙戞暟闄愬埗锛屽洜涓轰竴涓繘绋嬫墍鎵撳紑鐨?/p>
socket FD
锛堟枃浠舵弿杩?/p>
绗︼級鏄湁闄愬埗鐨勶紝榛樿鏄?/p>
1024
锛屽洜姝?/p>
select
妯″瀷鐨勬渶澶у苟鍙戞暟灏辫闄愬埗浜嗐�傚綋鐒讹紝鎴戜滑鍙互閫?/p>
杩囦慨鏀圭郴缁熷弬鏁板澶ф渶澶у苟鍙戞暟锛岀劧鑰岀敱浜?/p>
select
鐨勬瘡娆¤皟鐢ㄩ兘浼氱嚎鎬ф壂鎻忓叏閮ㄧ殑
socket FD
闆嗗悎銆傚綋
socket FD
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poll
妯″瀷鍩烘湰涓婂拰
select
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select
鐨勯棶棰樺湪
poll
妯″瀷涓篃娌℃湁琚В鍐炽�?/p>
epoll
妯″瀷鏄洰鍓嶆瘮杈冧紭绉�鐨?/p>
I/O
澶氳矾澶嶇敤妯″瀷锛岄鍏堬紝
epoll
娌℃湁鏈�澶у苟鍙戣繛鎺ョ殑闄愬埗锛?/p>
涓婇檺鏄暣涓郴缁熸渶澶у彲浠ユ墦寮�鐨?/p>
socket FD
鏁扮洰锛岃繖涓暟杩滃ぇ浜?/p>
2048
锛屼竴鑸繖涓暟鐩拰绯荤粺鍐?/p>
瀛樺叧绯诲緢澶э紝
1G
鍐呭瓨鐨勬満鍣ㄧ殑鏈�澶?/p>
socket FD
鏁扮洰鍙互杈惧埌
10
涓囧乏鍙炽�傚叾娆★紝
epoll
鏈�澶х殑浼?/p>
鐐瑰湪浜庡畠鍙叧蹇冩椿璺冪殑杩炴帴锛岃�岃窡杩炴帴鎬绘暟鏃犲叧銆傚洜姝ゅ湪瀹為檯鐨勭綉缁滅幆澧冧腑锛?/p>
epoll
鐨勬晥鐜囦細
杩滈珮浜?/p>
select
鍜?/p>
poll
銆?/p>