{"id":54176,"date":"2025-11-25T07:56:09","date_gmt":"2025-11-25T07:56:09","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=54176"},"modified":"2025-11-25T07:56:09","modified_gmt":"2025-11-25T07:56:09","slug":"perfmon-vs-resource-monitor-complete-detailed-tutorial","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/perfmon-vs-resource-monitor-complete-detailed-tutorial\/","title":{"rendered":"PerfMon vs Resource Monitor \u2014 Complete Detailed Tutorial"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><\/h1>\n\n\n\n<p>Windows provides two extremely powerful built-in tools for performance diagnosis:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PerfMon (Performance Monitor)<\/strong><\/li>\n\n\n\n<li><strong>Resource Monitor (ResMon)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Both are essential for <strong>SRE<\/strong>, <strong>DevOps<\/strong>, <strong>Performance Engineering<\/strong>, <strong>.NET Developers<\/strong>, <strong>Windows Admins<\/strong>, and <strong>Troubleshooting Teams<\/strong>.<\/p>\n\n\n\n<p>Even though they complement each other, they serve <strong>different purposes<\/strong>, work in different ways, and are used in different scenarios.<\/p>\n\n\n\n<p>This tutorial explains:<\/p>\n\n\n\n<p>\u2714 What each tool is<br>\u2714 Why it exists<br>\u2714 When to use which one<br>\u2714 Architecture<br>\u2714 Key features<br>\u2714 Deep comparison<br>\u2714 Step-by-step usage<br>\u2714 Counters, views, and analysis<br>\u2714 Use cases<br>\u2714 Advantages &amp; Limitations<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>1. Introduction<\/strong><\/h1>\n\n\n\n<p>Windows performance diagnostics usually require <strong>two types of tools<\/strong>:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Long-term, counter-based, low-overhead monitoring \u2192 PerfMon<\/strong><\/li>\n\n\n\n<li><strong>Real-time, process-level investigation \u2192 Resource Monitor<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Understanding both is mandatory to diagnose:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High CPU<\/li>\n\n\n\n<li>Memory leaks<\/li>\n\n\n\n<li>Disk I\/O bottlenecks<\/li>\n\n\n\n<li>Network latency<\/li>\n\n\n\n<li>API\/server slowdown<\/li>\n\n\n\n<li>SQL and .NET GC pressure<\/li>\n\n\n\n<li>Thread deadlocks<\/li>\n\n\n\n<li>Suspicious connections<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>2. What is PerfMon (Performance Monitor)?<\/strong><\/h1>\n\n\n\n<p>PerfMon is a <strong>counter-based performance analysis tool<\/strong> built into Windows.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>PerfMon Allows You To:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Monitor thousands of <strong>Windows Performance Counters<\/strong><\/li>\n\n\n\n<li>Track CPU, Memory, Disk, Network metrics<\/li>\n\n\n\n<li>Monitor <strong>.NET CLR<\/strong> (GC, Exceptions, Threads)<\/li>\n\n\n\n<li>Monitor <strong>IIS, SQL Server, Application Pools<\/strong><\/li>\n\n\n\n<li>Create <strong>Data Collector Sets<\/strong> to log data over hours\/days<\/li>\n\n\n\n<li>Collect trends during <strong>load testing<\/strong><\/li>\n\n\n\n<li>Export performance logs (BLG\/CSV)<\/li>\n<\/ul>\n\n\n\n<p>PerfMon is the <strong>official tool<\/strong> for Windows performance engineering.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>3. What is Resource Monitor (resmon.exe)?<\/strong><\/h1>\n\n\n\n<p>Resource Monitor is a <strong>real-time diagnostic and troubleshooting tool<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>ResMon Provides:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Per-process CPU usage<\/li>\n\n\n\n<li>Disk activity <strong>per file<\/strong><\/li>\n\n\n\n<li>Network activity <strong>per connection<\/strong><\/li>\n\n\n\n<li>Memory usage, <strong>hard faults<\/strong>, Working Set<\/li>\n\n\n\n<li>Handles, Modules, Threads<\/li>\n\n\n\n<li>TCP\/IP remote address mapping<\/li>\n\n\n\n<li>Live graphs for CPU, Disk, Memory, Network<\/li>\n<\/ul>\n\n\n\n<p>ResMon is essentially <strong>Task Manager on steroids<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>4. Why Windows Provides Two Different Tools<\/strong><\/h1>\n\n\n\n<p>These tools solve <strong>different problems<\/strong>:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfaf <strong>PerfMon = Deep, long-term performance analysis<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Long-term capture<\/li>\n\n\n\n<li>Low overhead<\/li>\n\n\n\n<li>Counter-based<\/li>\n\n\n\n<li>Used for load testing and metrics correlation<\/li>\n\n\n\n<li>Supports .NET, SQL, IIS counters<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfaf <strong>Resource Monitor = Immediate process-level diagnosis<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Instant<\/li>\n\n\n\n<li>Real-time<\/li>\n\n\n\n<li>Shows files, ports, connections, and threads<\/li>\n\n\n\n<li>Shows EXACTLY which process is the culprit<\/li>\n\n\n\n<li>Used for troubleshooting<\/li>\n<\/ul>\n\n\n\n<p>Both tools <strong>complement each other<\/strong>, not replace each other.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>5. PerfMon Architecture vs Resource Monitor Architecture<\/strong><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>PerfMon Architecture<\/strong><\/h2>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">Performance Counters \u2192 PerfMon Collector \u2192 Graph \/ Report \/ DCS Logs\n<\/code><\/span><\/pre>\n\n\n<p>PerfMon uses:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CPU counters<\/li>\n\n\n\n<li>Memory counters<\/li>\n\n\n\n<li>Disk counters<\/li>\n\n\n\n<li>Network counters<\/li>\n\n\n\n<li>.NET CLR counters<\/li>\n\n\n\n<li>SQL performance counters<\/li>\n\n\n\n<li>IIS counters<\/li>\n<\/ul>\n\n\n\n<p>It reads metrics exposed through <strong>Windows Performance Counter API<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Resource Monitor Architecture<\/strong><\/h2>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">Windows Kernel \u2192 ResMon \u2192 Real-time CPU\/Disk\/Memory\/Network Data\n<\/code><\/span><\/pre>\n\n\n<p>ResMon reads data directly from:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>I\/O Manager<\/li>\n\n\n\n<li>Memory Manager<\/li>\n\n\n\n<li>NTFS driver<\/li>\n\n\n\n<li>TCP\/IP stack<\/li>\n\n\n\n<li>Scheduler<\/li>\n<\/ul>\n\n\n\n<p>It displays:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Which file is being accessed<\/li>\n\n\n\n<li>Which IP\/port a process is talking to<\/li>\n\n\n\n<li>How many bytes\/sec a process is consuming<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>6. PerfMon \u2014 Key Capabilities<\/strong><\/h1>\n\n\n\n<p>\u2714 Tracks metrics historically<br>\u2714 Supports <strong>Data Collector Sets<\/strong><br>\u2714 Records 1\u201324 hour logs<br>\u2714 Helps in load test analysis<br>\u2714 Shows slow API correlations<br>\u2714 Supports over 5000 counters<br>\u2714 Lightweight, low overhead<br>\u2714 Supports Remote Server Monitoring<br>\u2714 Provides reports<\/p>\n\n\n\n<p>PerfMon is used by:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Performance Engineers<\/li>\n\n\n\n<li>SRE<\/li>\n\n\n\n<li>DevOps<\/li>\n\n\n\n<li>QA Load Test Teams<\/li>\n\n\n\n<li>.NET Developers<\/li>\n\n\n\n<li>DBAs<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>7. Resource Monitor \u2014 Key Capabilities<\/strong><\/h1>\n\n\n\n<p>\u2714 REAL-TIME (per second) monitoring<br>\u2714 Per-process insights<br>\u2714 Per-file disk activity<br>\u2714 Per-port network activity<br>\u2714 Thread and handle analysis<br>\u2714 Network connections with remote IP mapping<br>\u2714 Deadlock detection via \u201cAnalyze Wait Chain\u201d<br>\u2714 Hard Faults\/sec per process<br>\u2714 Suspend\/Kill process<br>\u2714 Filter entire UI by one process<\/p>\n\n\n\n<p>Resource Monitor is essential for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Investigating immediate spikes<\/li>\n\n\n\n<li>Debugging suspicious traffic<\/li>\n\n\n\n<li>File-level disk analysis<\/li>\n\n\n\n<li>Thread starvation &amp; deadlocks<\/li>\n\n\n\n<li>Live troubleshooting<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>8. PerfMon vs Resource Monitor: Detailed Feature Comparison<\/strong><\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>PerfMon<\/th><th>Resource Monitor<\/th><\/tr><\/thead><tbody><tr><td>Real-Time Monitoring<\/td><td>\u2714 Yes<\/td><td>\u2714 Yes (more granular)<\/td><\/tr><tr><td>Historical Logging<\/td><td>\u2714 Yes (DCS)<\/td><td>\u2718 No<\/td><\/tr><tr><td>.NET CLR Counters<\/td><td>\u2714 Yes<\/td><td>\u2718 No<\/td><\/tr><tr><td>SQL\/IIS Counters<\/td><td>\u2714 Yes<\/td><td>\u2718 No<\/td><\/tr><tr><td>Per-Process Details<\/td><td>Partial<\/td><td>\u2714 Full<\/td><\/tr><tr><td>Per-Thread Details<\/td><td>\u2718 No<\/td><td>\u2714 Yes<\/td><\/tr><tr><td>Per-File Disk I\/O<\/td><td>\u2718 No<\/td><td>\u2714 Yes<\/td><\/tr><tr><td>Per-Port Network<\/td><td>\u2718 No<\/td><td>\u2714 Yes<\/td><\/tr><tr><td>Disk Queue Length<\/td><td>\u2714 Yes<\/td><td>\u2714 Per Process<\/td><\/tr><tr><td>Hard Faults<\/td><td>\u2714 System-wide<\/td><td>\u2714 Per-process<\/td><\/tr><tr><td>Long-term load testing<\/td><td>\u2714 Yes<\/td><td>\u2718 No<\/td><\/tr><tr><td>Quick troubleshooting<\/td><td>Medium<\/td><td>\u2714 Best<\/td><\/tr><tr><td>Deadlock detection<\/td><td>\u2718 No<\/td><td>\u2714 Analyze Wait Chain<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>9. How to Use PerfMon (Step-by-Step)<\/strong><\/h1>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1 \u2014 Launch<\/strong><\/h3>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">Win + R \u2192 perfmon\n<\/code><\/span><\/pre>\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2 \u2014 Open Performance Monitor (Graph)<\/strong><\/h3>\n\n\n\n<p>\u279c Add counters using the <strong>+<\/strong> icon<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 3 \u2014 Add critical counters<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CPU<\/li>\n\n\n\n<li>Memory<\/li>\n\n\n\n<li>Disk<\/li>\n\n\n\n<li>Network<\/li>\n\n\n\n<li>.NET CLR<\/li>\n\n\n\n<li>SQL<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 4 \u2014 Create Data Collector Set (DCS)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>User Defined \u2192 New<\/li>\n\n\n\n<li>Add counters<\/li>\n\n\n\n<li>Set sample interval (1 sec \/ 5 sec)<\/li>\n\n\n\n<li>Save to BLG<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 5 \u2014 Run Load Test \/ Production Debug<\/strong><\/h3>\n\n\n\n<p>PerfMon will collect data in background.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 6 \u2014 Analyze Reports<\/strong><\/h3>\n\n\n\n<p>Reports \u2192 User Defined \u2192 Performance Logs<\/p>\n\n\n\n<p>PerfMon is used for <strong>long-term, in-depth<\/strong> analysis.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>10. How to Use Resource Monitor (Step-by-Step)<\/strong><\/h1>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1 \u2014 Launch<\/strong><\/h3>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">Win + R \u2192 resmon\n<\/code><\/span><\/pre>\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2 \u2014 Overview Tab<\/strong><\/h3>\n\n\n\n<p>Shows combined CPU, Disk, Memory, Network activity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 3 \u2014 CPU Tab<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Identify high CPU process<\/li>\n\n\n\n<li>Expand Threads<\/li>\n\n\n\n<li>Use \u201cAnalyze Wait Chain\u201d<\/li>\n\n\n\n<li>See loaded modules<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 4 \u2014 Memory Tab<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Watch Hard Faults\/sec<\/li>\n\n\n\n<li>Sort by Private KB \/ Working Set<\/li>\n\n\n\n<li>Detect leaks<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 5 \u2014 Disk Tab<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sort by Total B\/sec<\/li>\n\n\n\n<li>View file access paths<\/li>\n\n\n\n<li>See disk queue length<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 6 \u2014 Network Tab<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sort by network usage<\/li>\n\n\n\n<li>See remote IPs &amp; ports<\/li>\n\n\n\n<li>Find connection failures<\/li>\n<\/ul>\n\n\n\n<p>Resource Monitor is for <strong>immediate diagnosis<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>11. Use Cases (Side-by-Side)<\/strong><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2714 High CPU<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PerfMon \u2192 CPU trend<\/li>\n\n\n\n<li>ResMon \u2192 identify problem process immediately<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2714 Memory Leak<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PerfMon \u2192 long-term memory curve<\/li>\n\n\n\n<li>ResMon \u2192 which process grows live<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2714 Slow Disk<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PerfMon \u2192 Disk latency &amp; queue length<\/li>\n\n\n\n<li>ResMon \u2192 which file\/process is hammering disk<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2714 Slow API<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PerfMon \u2192 server load correlation<\/li>\n\n\n\n<li>ResMon \u2192 network connection slowdown<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2714 SQL Server Slowness<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PerfMon \u2192 SQL counters<\/li>\n\n\n\n<li>ResMon \u2192 see disk load from SQL process<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2714 Malware or Suspicious Traffic<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PerfMon \u2192 cannot detect<\/li>\n\n\n\n<li>ResMon \u2192 shows exact port &amp; IP<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>12. Advantages &amp; Limitations<\/strong><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>PerfMon Advantages<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Very low overhead<\/li>\n\n\n\n<li>Huge range of counters<\/li>\n\n\n\n<li>Long-duration monitoring<\/li>\n\n\n\n<li>Perfect for load tests<\/li>\n\n\n\n<li>Excellent for .NET\/SQL apps<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>PerfMon Limitations<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>No real-time per-process details<\/li>\n\n\n\n<li>Cannot see file paths<\/li>\n\n\n\n<li>No per-port network data<\/li>\n\n\n\n<li>Requires setup<\/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\"><strong>Resource Monitor Advantages<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Real-time, instant insights<\/li>\n\n\n\n<li>Shows per-file, per-thread, per-port activity<\/li>\n\n\n\n<li>Great for immediate incident response<\/li>\n\n\n\n<li>Perfect for debugging slow servers<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Resource Monitor Limitations<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cannot log long-term<\/li>\n\n\n\n<li>No deep counters (.NET\/IIS\/SQL)<\/li>\n\n\n\n<li>Not suitable for load test correlation<\/li>\n\n\n\n<li>No report automation<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>13. When to Use Which Tool (Decision Guide)<\/strong><\/h1>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Use PERFMON if you need:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Historical performance trends<\/li>\n\n\n\n<li>Load test metrics<\/li>\n\n\n\n<li>Deep OS and .NET counters<\/li>\n\n\n\n<li>SQL\/IIS performance visibility<\/li>\n\n\n\n<li>Long-term bottleneck analysis<\/li>\n\n\n\n<li>Day-to-day performance engineering<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Use RESOURCE MONITOR if:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>System is slow <strong>RIGHT NOW<\/strong><\/li>\n\n\n\n<li>Need to see exact process causing trouble<\/li>\n\n\n\n<li>Disk or network is acting strange<\/li>\n\n\n\n<li>Memory leaking at this moment<\/li>\n\n\n\n<li>Suspicious connections<\/li>\n\n\n\n<li>You need quick root cause<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udd35 <strong>14. Summary<\/strong><\/h1>\n\n\n\n<p>PerfMon and Resource Monitor are <strong>complementary tools<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PerfMon<\/strong> = deep, long-term analysis<\/li>\n\n\n\n<li><strong>ResMon<\/strong> = real-time process-level diagnosis<\/li>\n<\/ul>\n\n\n\n<p>Together, they provide the <strong>complete Windows performance toolbox<\/strong> needed for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SRE<\/li>\n\n\n\n<li>DevOps<\/li>\n\n\n\n<li>Windows Admins<\/li>\n\n\n\n<li>Developers<\/li>\n\n\n\n<li>Performance Testers<\/li>\n<\/ul>\n\n\n\n<p>PerfMon helps you understand <strong>WHY things happen<\/strong>.<br>Resource Monitor helps you catch <strong>WHAT is happening right now<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Windows provides two extremely powerful built-in tools for performance diagnosis: Both are essential for SRE, DevOps, Performance Engineering, .NET Developers, Windows Admins, and Troubleshooting Teams. Even though they complement each&#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[11138],"tags":[],"class_list":["post-54176","post","type-post","status-publish","format-standard","hentry","category-best-tools"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/54176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=54176"}],"version-history":[{"count":1,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/54176\/revisions"}],"predecessor-version":[{"id":54177,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/54176\/revisions\/54177"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=54176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=54176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=54176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}