{"id":3952,"date":"2020-02-08T13:56:29","date_gmt":"2020-02-08T06:56:29","guid":{"rendered":"https:\/\/tino.vn\/?post_type=ht_kb&#038;p=3952"},"modified":"2020-03-03T15:59:57","modified_gmt":"2020-03-03T08:59:57","slug":"huong-dan-gioi-han-cpu-cho-cac-tien-trinh-linux-tren-debian-ubuntu-voi-cputool","status":"publish","type":"ht_kb","link":"https:\/\/tino.vn\/blog\/docs\/huong-dan-gioi-han-cpu-cho-cac-tien-trinh-linux-tren-debian-ubuntu-voi-cputool\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn gi\u1edbi h\u1ea1n CPU cho c\u00e1c ti\u1ebfn tr\u00ecnh Linux tr\u00ean  Debian\/Ubuntu v\u1edbi CPUTool"},"content":{"rendered":"<p><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/PYACnzs6Wq0\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>Hi\u1ec7n t\u1ea1i th\u00ec ch\u01b0\u01a1ng tr\u00ecnh n\u00e0y ch\u1ec9 c\u00f3 tr\u00ean Debian\/Ubuntu\u00a0 b\u1ea1n c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t b\u1eb1ng l\u1ec7nh sau :<\/p>\n<pre>sudo apt install cputool<\/pre>\n<h3 id=\"Gi\u1edbi_h\u1ea1n_process_v\u1edbi_CPULimit\">Gi\u1edbi h\u1ea1n process v\u1edbi CPULimit<\/h3>\n<p>\u0110\u1ea7u ti\u00ean ch\u00fang ta t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a cpulimit, tr\u01b0\u1edbc ti\u00ean ch\u00fang ta h\u00e3y th\u1eed ch\u1ea1y m\u1ed9t l\u1ec7nh <strong>dd <\/strong>\u1ed5 c\u1ee9ng .<\/p>\n<pre>dd if=\/dev\/zero of=\/dev\/null &amp;<\/pre>\n<p>B\u1ea1n c\u00f3 th\u1ec3 theo d\u00f5i ti\u1ebfn tr\u00ecnh \u0111ang ho\u1ea1t \u0111\u1ed9ng v\u1edbi l\u1ec7nh : <strong>top<br \/>\n<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2020\/02\/Monitor-dd-Command-CPU-Usage.png\" alt=\"Monitor dd Command CPU Usage\" title=\"\"><\/p>\n<p>\u1ede \u0111\u00e2y t\u00f4i th\u1ea5y ti\u1ebfn tr\u00ecnh n\u00e0y lu\u00f4n ch\u1ea1y v\u1edbi 100% cpu (1 core), gi\u1edd t\u00f4i th\u1eed gi\u1edbi h\u1ea1n v\u1edbi CPUtool.<\/p>\n<p>B\u1ea1n s\u1eed d\u1ee5ng tu\u1ef3 ch\u1ecdn &#8211;cpu-limit ho\u1eb7c l\u00e0 -c \u0111\u1ec3 gi\u1edbi h\u1ea1n ph\u1ea7n tr\u0103m s\u1eed d\u1ee5ng cpu c\u1ee7a process, -p \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh ti\u1ebfn tr\u00ecnh n\u00e0o c\u1ea7n gi\u1edbi h\u1ea1n.<\/p>\n<p>Ch\u1eb3ng h\u1ea1n t\u00f4i gi\u1edbi h\u1ea1n ti\u1ebfn tr\u00ecnh tr\u00ean v\u1edbi PID l\u00e0 8275 v\u1edbi 50% (1 core).<\/p>\n<pre>cputool --cpu-limit 50 -p 8275<\/pre>\n<p>Sau khi ch\u1ea1y b\u1ea1n c\u00f3 th\u1ec3 check l\u1ea1i ti\u1ebfn tr\u00ecnh \u0111ang ho\u1ea1t \u0111\u1ed9ng v\u1edbi l\u1ec7nh <strong>top<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2020\/02\/Limit-CPU-Usage-on-Linux-Process.png\" alt=\"Limit Process CPU to 50% Usage\" title=\"\"><\/p>\n<p>Gi\u1ea3 s\u1eed t\u00f4i mu\u1ed1n set l\u1ea1i\u00a0 20%:<\/p>\n<pre> cputool --cpu-limit 20 -p 8275<\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2020\/02\/Limit-Process-CPU-Usage-in-Linux.png\" alt=\"Limit Process CPU Usage to 20%\" title=\"\"><\/p>\n<p>L\u01b0u \u00fd: Khi ch\u1ea1y ch\u01b0\u01a1ng tr\u00ecnh n\u00e0y, sau khi nh\u1eadp l\u1ec7nh b\u1ea1n kh\u00f4ng thao t\u00e1c tr\u00ean b\u00e0n ph\u00edm \u0111\u1ec3 gi\u1eef cho ch\u01b0\u01a1ng tr\u00ecnh ch\u1ea1y, \u0111\u1ec3 tho\u00e1t ra b\u1ea1n c\u00f3 th\u1ec3 nh\u1ea5n ctrl+X.<\/p>\n<p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 t\u00ecm v\u00e0 group ch\u01b0\u01a1ng tr\u00ecnh b\u1eb1ng c\u00e1ch ch\u1ec9 \u0111\u1ecbnh 1 PID duy nh\u1ea5t. Ch\u1eb3ng h\u1ea1n b\u1ea1n mu\u1ed1n t\u00ecm c\u00e1c ti\u1ebfn tr\u00ecnh ch\u1ea1y b\u1edfi apache b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng:<\/p>\n<pre>pidof apache2<\/pre>\n<p>K\u1ebft qu\u1ea3.<\/p>\n<pre># pidof apache2\r\n9592 3643 3642 3641 3640 3638 3637 1780<\/pre>\n<p>B\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng l\u1ec7nh sau \u0111\u1ec3 gi\u1edbi h\u1ea1n cho t\u1ea5t c\u1ea3 c\u00e1c ti\u1ebfn tr\u00ecnh apache<\/p>\n<pre>cputool --cpu-limit 20 -P 1780<\/pre>\n<p>B\u1ea1n l\u01b0u \u00fd, b\u1ea1n d\u00f9ng tu\u1ef3 ch\u1ecdn -P (Ch\u1eef P vi\u1ebft hoa), kh\u00f4ng gi\u1ed1ng nh\u01b0 v\u00ed d\u1ee5 \u0111\u1ea7u ti\u00ean l\u00e0 p th\u01b0\u1eddng.<\/p>\n<p>B\u1ea1n c\u00f3 th\u1ec3 xem th\u00eam th\u00f4ng tin v\u1edbi:<\/p>\n<pre>man cputool<\/pre>\n<p>Ch\u00fac c\u00e1c b\u1ea1n th\u00e0nh c\u00f4ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec7n t\u1ea1i th\u00ec ch\u01b0\u01a1ng tr\u00ecnh n\u00e0y ch\u1ec9 c\u00f3 tr\u00ean Debian\/Ubuntu\u00a0 b\u1ea1n c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t b\u1eb1ng l\u1ec7nh sau : sudo apt install cputool Gi\u1edbi h\u1ea1n process v\u1edbi CPULimit \u0110\u1ea7u ti\u00ean ch\u00fang ta t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a cpulimit, tr\u01b0\u1edbc ti\u00ean ch\u00fang ta h\u00e3y th\u1eed ch\u1ea1y m\u1ed9t l\u1ec7nh dd \u1ed5 c\u1ee9ng . dd [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":16424,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"tags":[],"ht_kb_category":[17],"class_list":["post-3952","ht_kb","type-ht_kb","status-publish","format-standard","has-post-thumbnail","hentry","ht_kb_category-huong-dan-ve-cloud-vps"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/ht_kb\/3952","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/ht_kb"}],"about":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=3952"}],"version-history":[{"count":0,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/ht_kb\/3952\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/16424"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=3952"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=3952"},{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/ht_kb_category?post=3952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}