{"id":139,"date":"2026-10-10T09:00:00","date_gmt":"2026-10-10T02:00:00","guid":{"rendered":"https:\/\/onmeeting.com.vn\/?p=139"},"modified":"2026-10-13T17:03:49","modified_gmt":"2026-10-13T10:03:49","slug":"ram-vps-la-gi","status":"publish","type":"post","link":"https:\/\/onmeeting.com.vn\/?p=139","title":{"rendered":"RAM VPS l\u00e0 g\u00ec? Ch\u1ecdn bao nhi\u00eau GB l\u00e0 \u0111\u1ee7 cho t\u1eebng nhu c\u1ea7u"},"content":{"rendered":"<p>Trong ba th\u00f4ng s\u1ed1 ch\u00ednh c\u1ee7a VPS (vCPU, RAM, \u1ed5 c\u1ee9ng), RAM l\u00e0 th\u1ee9 d\u1ec5 khi\u1ebfn website &#8220;\u0111\u1ee9ng h\u00ecnh&#8221; nh\u1ea5t khi thi\u1ebfu. B\u00e0i vi\u1ebft n\u00e0y gi\u00fap b\u1ea1n hi\u1ec3u RAM l\u00e0m g\u00ec v\u00e0 ch\u1ecdn m\u1ee9c v\u1eeba \u0111\u1ee7, kh\u00f4ng th\u1eeba c\u0169ng kh\u00f4ng thi\u1ebfu.<\/p>\n\n<h2>RAM l\u00e0m nhi\u1ec7m v\u1ee5 g\u00ec tr\u00ean VPS?<\/h2>\n<p>RAM l\u00e0 n\u01a1i h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 \u1ee9ng d\u1ee5ng gi\u1eef d\u1eef li\u1ec7u \u0111ang x\u1eed l\u00fd: ti\u1ebfn tr\u00ecnh PHP, b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a database, cache c\u1ee7a website. Khi RAM h\u1ebft, h\u1ec7 th\u1ed1ng ph\u1ea3i d\u00f9ng \u1ed5 c\u1ee9ng l\u00e0m b\u1ed9 nh\u1edb t\u1ea1m (swap), ch\u1eadm h\u01a1n nhi\u1ec1u l\u1ea7n, th\u1eadm ch\u00ed t\u1ef1 t\u1eaft b\u1edbt ti\u1ebfn tr\u00ecnh \u0111\u1ec3 gi\u1eef m\u00e1y s\u1ed1ng.<\/p>\n\n<h2>D\u1ea5u hi\u1ec7u VPS \u0111ang thi\u1ebfu RAM<\/h2>\n<ul>\n<li>Website ch\u1eadm h\u1eb3n m\u1ed7i khi l\u01b0\u1ee3ng truy c\u1eadp t\u0103ng.<\/li>\n<li>Th\u01b0\u1eddng xuy\u00ean g\u1eb7p l\u1ed7i 502, 503 ho\u1eb7c database b\u1ecb ng\u1eaft k\u1ebft n\u1ed1i.<\/li>\n<li>L\u1ec7nh <code>free -h<\/code> cho th\u1ea5y b\u1ed9 nh\u1edb tr\u1ed1ng r\u1ea5t \u00edt v\u00e0 swap b\u1ecb d\u00f9ng nhi\u1ec1u.<\/li>\n<li>Nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng c\u00f3 d\u00f2ng &#8220;Out of memory&#8221; ho\u1eb7c &#8220;oom-killer&#8221;.<\/li>\n<\/ul>\n\n<h2>G\u1ee3i \u00fd dung l\u01b0\u1ee3ng RAM theo nhu c\u1ea7u<\/h2>\n<ul>\n<li><strong>1 GB:<\/strong> blog c\u00e1 nh\u00e2n, landing page, website m\u1edbi \u00edt truy c\u1eadp, m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m.<\/li>\n<li><strong>2 GB:<\/strong> WordPress v\u1eeba ph\u1ea3i v\u1edbi v\u00e0i plugin, website gi\u1edbi thi\u1ec7u doanh nghi\u1ec7p.<\/li>\n<li><strong>4 GB:<\/strong> shop WooCommerce, website nhi\u1ec1u plugin ho\u1eb7c c\u00f3 cache, ch\u1ea1y \u0111\u01b0\u1ee3c v\u00e0i website song song.<\/li>\n<li><strong>8 GB tr\u1edf l\u00ean:<\/strong> nhi\u1ec1u website tr\u00ean m\u1ed9t m\u00e1y, database l\u1edbn, \u1ee9ng d\u1ee5ng Node.js ho\u1eb7c nhi\u1ec1u container Docker.<\/li>\n<\/ul>\n<p>\u0110\u00e2y ch\u1ec9 l\u00e0 m\u1ee9c tham kh\u1ea3o. C\u00e1ch ch\u00ednh x\u00e1c nh\u1ea5t l\u00e0 \u0111o th\u1ef1c t\u1ebf: ch\u1ea1y th\u1eed v\u00e0i ng\u00e0y r\u1ed3i xem m\u1ee9c RAM \u0111\u1ec9nh b\u1eb1ng <code>htop<\/code> ho\u1eb7c trang qu\u1ea3n tr\u1ecb c\u1ee7a VPS.<\/p>\n\n<h2>M\u1eb9o d\u00f9ng RAM hi\u1ec7u qu\u1ea3 tr\u01b0\u1edbc khi n\u00e2ng c\u1ea5p<\/h2>\n<ul>\n<li>B\u1eadt cache trang v\u00e0 cache \u0111\u1ed1i t\u01b0\u1ee3ng cho WordPress.<\/li>\n<li>Gi\u1edbi h\u1ea1n s\u1ed1 ti\u1ebfn tr\u00ecnh PHP-FPM theo \u0111\u00fang dung l\u01b0\u1ee3ng RAM.<\/li>\n<li>G\u1ee1 plugin kh\u00f4ng d\u00f9ng, t\u1eaft d\u1ecbch v\u1ee5 n\u1ec1n kh\u00f4ng c\u1ea7n thi\u1ebft.<\/li>\n<li>Theo d\u00f5i \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 bi\u1ebft xu h\u01b0\u1edbng, kh\u00f4ng \u0111\u1ee3i \u0111\u1ebfn l\u00fac treo m\u1edbi x\u1eed l\u00fd.<\/li>\n<\/ul>\n\n<h2>Khi RAM \u0111\u00e3 ch\u1ea1m tr\u1ea7n<\/h2>\n<p>N\u1ebfu \u0111\u00e3 t\u1ed1i \u01b0u m\u00e0 RAM v\u1eabn \u0111\u1ea7y, \u0111\u00f3 l\u00e0 l\u00fac n\u00e2ng c\u1ea5p. V\u1edbi VPS Gi\u00e1 R\u1ebb, b\u1ea1n t\u0103ng RAM ngay trong trang qu\u1ea3n tr\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n c\u00e0i l\u1ea1i, ch\u1ec9 tr\u1ea3 ph\u1ea7n ch\u00eanh l\u1ec7ch theo s\u1ed1 ng\u00e0y c\u00f2n l\u1ea1i.<\/p><p>N\u1ebfu b\u1ea1n \u0111ang c\u00e2n nh\u1eafc c\u1ea5u h\u00ecnh c\u1ee5 th\u1ec3, h\u00e3y xem <a href=\"\/#bang-gia\">b\u1ea3ng gi\u00e1 VPS NVMe<\/a> ho\u1eb7c <a href=\"https:\/\/zalo.me\/0886799977\" target=\"_blank\" rel=\"noopener\">nh\u1eafn k\u1ef9 thu\u1eadt vi\u00ean qua Zalo<\/a> \u0111\u1ec3 \u0111\u01b0\u1ee3c g\u1ee3i \u00fd g\u00f3i v\u1eeba \u0111\u1ee7.<\/p>","protected":false},"excerpt":{"rendered":"<p>RAM quy\u1ebft \u0111\u1ecbnh VPS ch\u1ea1y m\u01b0\u1ee3t hay b\u1ecb treo khi \u0111\u00f4ng kh\u00e1ch. \u0110\u00e2y l\u00e0 c\u00e1ch \u01b0\u1edbc l\u01b0\u1ee3ng dung l\u01b0\u1ee3ng RAM theo t\u1eebng lo\u1ea1i website v\u00e0 \u1ee9ng d\u1ee5ng.<\/p>\n","protected":false},"author":1,"featured_media":177,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=\/wp\/v2\/posts\/139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=139"}],"version-history":[{"count":0,"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=\/wp\/v2\/posts\/139\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=\/wp\/v2\/media\/177"}],"wp:attachment":[{"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onmeeting.com.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}