{"id":4029,"date":"2026-03-05T00:13:57","date_gmt":"2026-03-05T03:13:57","guid":{"rendered":"https:\/\/helpsysadmin.com.br\/blog\/?p=4029"},"modified":"2026-04-22T00:43:27","modified_gmt":"2026-04-22T03:43:27","slug":"usar-vmstat-para-achar-gargalo-linux","status":"publish","type":"post","link":"https:\/\/helpsysadmin.com.br\/blog\/usar-vmstat-para-achar-gargalo-linux\/","title":{"rendered":"Como Usar vmstat para Achar Gargalo no Linux em Minutos"},"content":{"rendered":"<div id=\"helps-1905083139\" class=\"helps-before-content-2 helps-entity-placement\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3661896953164277\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- 2anuncios display quadrado -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3661896953164277\"\r\n     data-ad-slot=\"5051229894\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div><div id=\"helps-4078321493\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3661896953164277\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- quadrado -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3661896953164277\"\r\n     data-ad-slot=\"7475053573\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Quando um servidor <a href=\"https:\/\/helpsysadmin.com.br\/blog\/como-instalar-crowdsec\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Como instalar Crowdsec\" target=\"_blank\" rel=\"noopener\">Linux<\/a> come\u00e7a a apresentar lentid\u00e3o, identificar rapidamente a causa do problema \u00e9 essencial. Em ambientes modernos que utilizam <strong>VPS, servidor dedicado ou cloud<\/strong>, a lentid\u00e3o pode estar relacionada a CPU, mem\u00f3ria, disco ou at\u00e9 limita\u00e7\u00f5es do hypervisor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Uma das formas mais r\u00e1pidas de diagnosticar esse tipo de situa\u00e7\u00e3o \u00e9 <strong>usar vmstat para achar gargalo<\/strong> no sistema. Essa ferramenta nativa do Linux permite visualizar em tempo real como os recursos do servidor est\u00e3o sendo utilizados.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Neste guia pr\u00e1tico voc\u00ea aprender\u00e1 <strong>como usar vmstat para achar gargalo<\/strong> em servidores Linux e interpretar corretamente cada m\u00e9trica exibida.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>vmstat<\/strong> traz apenas um dos indicadores utilizados para medir a sa\u00fade de um sistema Linux. Para entender todos os fatores que impactam o desempenho de um servidor, veja tamb\u00e9m nosso guia completo sobre <strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/performance-de-servidores-linux\/\" target=\"_blank\" rel=\"noreferrer noopener\">performance de servidores Linux<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A ferramenta <code>vmstat<\/code> permite identificar rapidamente se a carga do sistema est\u00e1 relacionada a CPU, espera por I\/O ou press\u00e3o de mem\u00f3ria. Muitas vezes, esses gargalos aparecem inicialmente como aumento do load average no servidor. Para entender melhor como interpretar essa m\u00e9trica, veja tamb\u00e9m o guia sobre <strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/load-average-linux-como-interpretar\/\">como interpretar corretamente o load average no Linux<\/a><\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-o-que-e-vmstat-no-linux\">O que \u00e9 vmstat no Linux<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>vmstat (Virtual Memory Statistics)<\/strong> \u00e9 um utilit\u00e1rio padr\u00e3o do Linux que mostra estat\u00edsticas relacionadas a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>mem\u00f3ria<\/li>\n\n\n\n<li>swap<\/li>\n\n\n\n<li>CPU<\/li>\n\n\n\n<li>processos<\/li>\n\n\n\n<li>I\/O de disco<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Para administradores de sistemas, <strong>usar vmstat para achar gargalo<\/strong> \u00e9 uma das primeiras etapas no diagn\u00f3stico de performance, pois ele oferece uma vis\u00e3o geral do comportamento do servidor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ao executar o comando, o sistema apresenta diversas m\u00e9tricas que ajudam a identificar rapidamente se existe press\u00e3o de mem\u00f3ria, satura\u00e7\u00e3o de CPU ou problemas de disco.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-como-executar-o-vmstat\">Como executar o vmstat<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O comando b\u00e1sico \u00e9 extremamente simples:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vmstat 1<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Isso faz com que o sistema atualize as estat\u00edsticas a cada segundo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Exemplo de sa\u00edda:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----<br> r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st<br> 1  0      0 240000  12000 900000    0    0     1     2   45   80  5  2 92  1  0<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Ao <strong>usar vmstat para achar gargalo<\/strong>, \u00e9 importante observar o comportamento das m\u00e9tricas ao longo de v\u00e1rios segundos e n\u00e3o apenas um \u00fanico snapshot.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-como-interpretar-as-colunas-do-vmstat\">Como interpretar as colunas do vmstat<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para realmente <strong>usar vmstat para achar gargalo<\/strong>, \u00e9 fundamental entender o significado de cada grupo de colunas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-processos\">Processos<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">r = processos aguardando CPU<br>b = processos bloqueados<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Se o valor de <strong>r<\/strong> for muito alto, isso indica que muitos processos est\u00e3o esperando CPU.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Regra pr\u00e1tica:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se <strong>r for maior que o n\u00famero de CPUs<\/strong>, pode existir gargalo de processamento.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">J\u00e1 o valor <strong>b<\/strong> indica processos bloqueados, normalmente relacionados a opera\u00e7\u00f5es de disco.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e9tricas exibidas pelo <code>vmstat<\/code> ajudam a identificar rapidamente gargalos de CPU, press\u00e3o de mem\u00f3ria ou lat\u00eancia de I\/O. Entretanto, essas informa\u00e7\u00f5es precisam ser analisadas dentro de um contexto mais amplo de <strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/performance-de-servidores-linux\/\">diagn\u00f3stico de performance em servidores Linux em produ\u00e7\u00e3o<\/a><\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-memoria\">Mem\u00f3ria<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As principais colunas de mem\u00f3ria s\u00e3o:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">swpd = mem\u00f3ria em swap<br>free = mem\u00f3ria livre<br>buff = buffers<br>cache = cache de disco<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 comum administradores se preocuparem ao ver pouca mem\u00f3ria livre. Por\u00e9m o Linux utiliza mem\u00f3ria dispon\u00edvel para cache.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ao <strong>usar vmstat para achar gargalo<\/strong>, o sinal real de problema \u00e9 o uso de swap.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-swap\">Swap<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As colunas importantes s\u00e3o:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">si = swap in<br>so = swap out<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Se esses valores estiverem constantemente acima de zero, significa que o sistema est\u00e1 movendo dados entre RAM e swap.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Isso normalmente indica:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>falta de mem\u00f3ria<\/li>\n\n\n\n<li>aplica\u00e7\u00f5es consumindo RAM excessivamente<\/li>\n\n\n\n<li>configura\u00e7\u00e3o inadequada de banco de dados<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Em servidores VPS com pouca mem\u00f3ria, essa situa\u00e7\u00e3o \u00e9 bastante comum.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-i-o-de-disco\">I\/O de disco<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As colunas relacionadas a disco s\u00e3o:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bi = blocos lidos<br>bo = blocos escritos<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Esses n\u00fameros indicam atividade de leitura e escrita.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Por\u00e9m o indicador mais importante para descobrir gargalo de disco ao <strong>usar vmstat para achar gargalo<\/strong> \u00e9 o campo <strong>wa (I\/O wait)<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cpu\">CPU<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As m\u00e9tricas da CPU s\u00e3o:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">us = uso da CPU por aplica\u00e7\u00f5es<br>sy = uso da CPU pelo kernel<br>id = CPU ociosa<br>wa = tempo esperando disco<br>st = tempo roubado pelo hypervisor<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Essas m\u00e9tricas mostram exatamente como o processador est\u00e1 sendo utilizado.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-cpu-user-us\">CPU user (us)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Mostra quanto da CPU est\u00e1 sendo utilizado por aplica\u00e7\u00f5es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se esse valor estiver muito alto, pode indicar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>scripts PHP pesados<\/li>\n\n\n\n<li>consultas MySQL lentas<\/li>\n\n\n\n<li>processamento intensivo<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-cpu-idle-id\">CPU idle (id)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Indica quanto da CPU est\u00e1 livre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Servidores saud\u00e1veis normalmente apresentam valores altos nessa m\u00e9trica.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-i-o-wait-wa\">I\/O Wait (wa)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Esse \u00e9 um dos indicadores mais importantes ao <strong>usar vmstat para achar gargalo<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se o valor <strong>wa estiver acima de 20%<\/strong>, normalmente significa que o sistema est\u00e1 aguardando respostas do disco.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Poss\u00edveis causas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>storage lento<\/li>\n\n\n\n<li>RAID saturado<\/li>\n\n\n\n<li>banco de dados realizando muitas opera\u00e7\u00f5es<\/li>\n\n\n\n<li>VPS com I\/O compartilhado<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-steal-time-st\">Steal Time (st)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Esse campo \u00e9 especialmente importante em ambientes virtualizados.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se o valor <strong>st for alto<\/strong>, significa que o hypervisor est\u00e1 retirando tempo de CPU da m\u00e1quina virtual.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Isso pode indicar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>host sobrecarregado<\/li>\n\n\n\n<li>overselling de VPS<\/li>\n\n\n\n<li>infraestrutura cloud congestionada<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-exemplos-praticos-de-gargalos-detectados-com-vmstat\">Exemplos pr\u00e1ticos de gargalos detectados com vmstat<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para administradores que precisam diagnosticar servidores rapidamente, <strong>usar vmstat para achar gargalo<\/strong> pode revelar diferentes cen\u00e1rios.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-gargalo-de-cpu\">Gargalo de CPU<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Exemplo:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">r = 12<br>us = 90<br>id = 3<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Isso indica que o servidor possui muitos processos aguardando CPU.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ferramentas complementares:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">top<br>htop<br>ps aux --sort=-%cpu<\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-gargalo-de-disco\">Gargalo de disco<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Exemplo:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">wa = 40<br>b = 5<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Isso indica que processos est\u00e3o bloqueados aguardando opera\u00e7\u00f5es de disco.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nesse caso, recomenda-se utilizar:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">iostat<br>iotop<\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-falta-de-memoria\">Falta de mem\u00f3ria<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Exemplo:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">swpd = 2048<br>si = 200<br>so = 150<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Esse comportamento mostra que o servidor est\u00e1 utilizando swap intensamente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Solu\u00e7\u00f5es poss\u00edveis incluem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>aumentar RAM<\/li>\n\n\n\n<li>otimizar banco de dados<\/li>\n\n\n\n<li>revisar servi\u00e7os em execu\u00e7\u00e3o<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-problema-de-infraestrutura-em-vps\">Problema de infraestrutura em VPS<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Exemplo:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">st = 12<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Isso indica que o hypervisor est\u00e1 retirando CPU da m\u00e1quina virtual.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nesse cen\u00e1rio, o problema n\u00e3o est\u00e1 no servidor, mas na infraestrutura do provedor.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-estrategia-profissional-de-diagnostico\">Estrat\u00e9gia profissional de diagn\u00f3stico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Administradores experientes costumam combinar v\u00e1rias ferramentas de an\u00e1lise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Uma sequ\u00eancia comum \u00e9:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">uptime<br>vmstat 1<br>top<br>iostat -x 1<br>free -m<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Essa abordagem permite identificar rapidamente se o problema est\u00e1 relacionado a CPU, mem\u00f3ria ou disco.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ao integrar essas ferramentas, <strong>usar <a href=\"https:\/\/man7.org\/linux\/man-pages\/man8\/vmstat.8.html\" target=\"_blank\" rel=\"noreferrer noopener\">vmstat<\/a> para achar gargalo<\/strong> se torna uma das t\u00e9cnicas mais r\u00e1pidas para diagnosticar problemas de performance.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"h-conclusao\">Conclus\u00e3o<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Saber <strong>usar vmstat para achar gargalo<\/strong> \u00e9 uma habilidade essencial para qualquer administrador de sistemas Linux. Com apenas um comando \u00e9 poss\u00edvel identificar rapidamente se a lentid\u00e3o do servidor est\u00e1 relacionada a CPU, mem\u00f3ria, disco ou limita\u00e7\u00f5es da infraestrutura virtualizada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em ambientes modernos que utilizam <strong>VPS, servidores dedicados ou cloud<\/strong>, essa ferramenta continua sendo uma das formas mais r\u00e1pidas e eficientes de diagnosticar problemas de performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quando combinada com ferramentas como <strong>top, iostat e iotop<\/strong>, ela permite encontrar gargalos em poucos minutos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ferramentas como <code>vmstat<\/code> s\u00e3o fundamentais para investigar problemas de desempenho, mas uma an\u00e1lise completa exige observar CPU, mem\u00f3ria, disco e rede de forma integrada. Para aprofundar essa abordagem, recomendamos tamb\u00e9m o guia completo sobre <strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/performance-de-servidores-linux\/\">como analisar performance de servidores Linux<\/a><\/strong>.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">O vmstat deve ser usado junto com outras ferramentas para uma an\u00e1lise completa. Veja tamb\u00e9m:<\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/achar-gargalo-com-iostat\/\">como usar iostat<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/load-average-linux-como-interpretar\/\">como interpretar load average<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/cpu-100-linux-o-que-verificar\/\">como identificar CPU 100%<\/a><\/strong><\/li>\n<\/ul>\n\n\n<div id=\"helps-2320975624\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3661896953164277\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- quadrado -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3661896953164277\"\r\n     data-ad-slot=\"7475053573\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-faq\">FAQ<\/h3>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1772679832010\"><strong class=\"schema-faq-question\">O que \u00e9 vmstat no Linux?<\/strong> <p class=\"schema-faq-answer\">vmstat \u00e9 um comando usado para exibir estat\u00edsticas de mem\u00f3ria, CPU, processos e opera\u00e7\u00f5es de disco em servidores Linux<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1772679849808\"><strong class=\"schema-faq-question\">Qual comando vmstat usar para monitoramento?<\/strong> <p class=\"schema-faq-answer\">O comando mais comum \u00e9:<br\/>vmstat 1<br\/>Ele atualiza as m\u00e9tricas do sistema a cada segundo.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1772679877457\"><strong class=\"schema-faq-question\">Como identificar gargalo de disco com vmstat?<\/strong> <p class=\"schema-faq-answer\">Verifique o valor <strong>wa (I\/O wait)<\/strong>. Valores acima de 20% normalmente indicam problemas de disco.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1772679924559\"><strong class=\"schema-faq-question\">vmstat funciona em VPS?<\/strong> <p class=\"schema-faq-answer\">Sim. Por\u00e9m em ambientes virtualizados \u00e9 importante observar o campo <strong>st (steal time)<\/strong>.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1772679967572\"><strong class=\"schema-faq-question\">vmstat substitui outras ferramentas de monitoramento?<\/strong> <p class=\"schema-faq-answer\">N\u00e3o. Ele fornece uma vis\u00e3o geral r\u00e1pida, mas deve ser usado em conjunto com ferramentas como <strong>top, iostat e iotop<\/strong>.<\/p> <\/div> <\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-veja-mais\">Veja Mais:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/io-de-disco-servidor-linux\/\" target=\"_blank\" rel=\"noreferrer noopener\">I\/O de disco servidor Linux: Como Resolver Gargalos<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/load-average-linux-como-interpretar\/\" target=\"_blank\" rel=\"noreferrer noopener\">Load Average no Linux: Como Interpretar Corretamente<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/performance-de-servidores-linux\/\" target=\"_blank\" rel=\"noreferrer noopener\">Performance de Servidores Linux: Guia Completo 2026<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/cpu-100-linux-o-que-verificar\/\" target=\"_blank\" rel=\"noreferrer noopener\">CPU 100% no Linux: O Que Verificar Primeiro no Servidor<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/servidor-lento-identificar-gargalo-vps-dedicado-cloud\/\">Servidor Lento: Como Identificar o Gargalo<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/achar-gargalo-com-iostat\/\">Como Achar Gargalo com Iostat: Guia Definitivo e Pr\u00e1tico<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/iowait-alto-causas-reais\/\">Iowait Alto: Causas Reais e Solu\u00e7\u00f5es<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/swap-alto-com-ram-livre-linux\/\" target=\"_blank\" rel=\"noreferrer noopener\">Swap Alto com RAM Livre: Por Que Isso Acontece e como Resolver<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/monitoramento-linux-vmstat-iostat-sar\/\">Guia Completo de Monitoramento Linux com vmstat, iostat e sar<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/tuning-sysctl-producao-linux\/\">Tuning de sysctl para Produ\u00e7\u00e3o: Guia Definitivo de Performance Linux<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/limits-conf-linux\/\">Como Ajustar limits.conf no Linux: Guia para Alta Performance<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/oom-killer-mysql-guia-sobrevivencia\/\">OOM Killer e MySQL: Como Evitar que o Linux Mate seu Banco de Dados<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/memory-leak-linux-detectar-resolver\/\">Memory Leak Linux: Como Detectar e Corrigir<\/a><\/strong><br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-saiba-mais\">Saiba Mais:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/no-space-left-on-device-com-espaco-livre\/\">No space left on device com espa\u00e7o livre? Como resolver (Guia Completo)<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/identificar-processo-consome-cpu-linux\/\">Como identificar processo que consome CPU no Linux (Guia Completo)<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/limitar-cpu-processo-linux-cgroups\/\">Como Limitar CPU por Processo no Linux com cgroups (Guia Completo)<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/upgrade-cpu-vs-otimizacao-servidor\/\">Upgrade de CPU ou Otimizar? Guia Completo<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/ram-cheia-no-linux-o-que-fazer\/\">RAM Cheia no Linux: O Guia Definitivo para Resolver Travamentos em 2026<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/buffers-e-cache-quando-sao-um-problema\/\">Buffers e Cache: Quando Deixam de Ajudar e Viram um Problema?<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/out-of-memory-causas-reais-solucoes\/\">Out of Memory (OOM): Causas Reais, Diagn\u00f3stico e Como Resolver<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/como-evitar-oom-killer-linux-producao\/\">Como evitar OOM Killer Linux em Produ\u00e7\u00e3o: Guia Definitivo 2026<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/gargalo-no-linux-cpu-vs-ram\/\">Gargalo no Linux: Como Identificar se o Problema \u00e9 CPU ou RAM?<\/a><\/strong><br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-saiba-mais-0\">Saiba Mais:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/disco-lento-no-linux-como-identificar\/\">Disco Lento no Linux: Guia Completo para Identificar e Resolver<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/latencia-de-disco-no-linux-alta\/\">Lat\u00eancia de Disco no Linux Alta: Causas, Diagn\u00f3stico e Solu\u00e7\u00f5es<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/limpar-cache-memoria-linux-guia-completo\/\">Como Limpar Cache de Mem\u00f3ria no Linux: O Guia Definitivo<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/testar-velocidade-disco-linux\/\" target=\"_blank\" rel=\"noreferrer noopener\">Como Testar Velocidade de Disco no Linux (Guia Completo)<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/performance-armazenamento-nvme-raid\/\" target=\"_blank\" rel=\"noreferrer noopener\">Performance de Armazenamento NVMe vs RAID: O Guia Definitivo 2026<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/throughput-vs-iops-linux-performance\/\" target=\"_blank\" rel=\"noreferrer noopener\">Throughput vs IOPS no Linux: Guia Definitivo de Performance [2026]<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/reduzir-escrita-disco-linux\/\" target=\"_blank\" rel=\"noreferrer noopener\">Reduzir Escrita em Disco Linux: Guia Completo para Melhorar Performance<\/a><\/strong><br><strong><a href=\"https:\/\/helpsysadmin.com.br\/blog\/logs-consumindo-disco-linux-guia-limpeza\/\" target=\"_blank\" rel=\"noreferrer noopener\">Logs Consumindo Disco? Como Controlar e Limpar o Linux (Guia 2026)<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quando um servidor Linux come\u00e7a a apresentar lentid\u00e3o, identificar rapidamente a causa do problema \u00e9 essencial. Em ambientes modernos que utilizam VPS, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4030,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4187],"tags":[2724,3903,2392,3883,3905,2830,3861,2310,3583,3835],"class_list":["post-4029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-monitoramento-e-troubleshooting","tag-diagnostico-de-servidor","tag-gargalo-linux","tag-linux-performance","tag-monitoramento-linux","tag-performance-cloud","tag-performance-vps","tag-servidor-lento","tag-sysadmin","tag-troubleshooting-linux-6","tag-vmstat"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Como Usar vmstat para Achar Gargalo no Linux em Minutos<\/title>\n<meta name=\"description\" content=\"Aprenda como usar vmstat para 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