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Documentation

    • Features
      • Application Monitoring
        • Application Performance Overview
        • Transactions List
        • Transaction Detail View
        • Response Time Distribution
        • Customizable Alerts
      • Timeline Profiler
        • Traces Overview
        • Timeline Profiler
        • Timeline Summary
        • Detect Bottlenecks
        • Find Traces
        • Tracepoints
        • Trace Trigger
        • Compare Traces
        • Automatic Instrumentation
      • Callgraph Profiler
        • Callgraph Profiler
        • Calls
      • Fixing Issues
        • Error Tracking
        • Slow SQL Query Log
        • Deprecations
      • History And Weekly Report
        • History View
        • Email Weekly Report
    • Guides
      • Generating Traces
        • Using Tracepoints
        • Generating Traces
        • Triggering Traces With ChecklyHQ
        • Triggering Traces With Postman
      • Solving Issues
        • Refactoring with Deprecations
    • Setup
      • Installation
        • Requirements
        • Debian/Ubuntu
        • Centos/RedHat/Fedora
        • Linux From a Tarball
        • Docker with Compose
        • Alpine Docker Containers
        • AWS Elastic Beanstalk
        • Heroku
        • Spryker
        • Beta Testing
      • Configuration
        • Configure Via PHP.ini
        • Configure Using Apache Virtual Hosts
        • Configure Using NGINX Virtual Hosts
        • Custom Instrumentation
        • Deployment Events
        • Deprecations Tracking
        • Environments
        • Filter Sensitive Data From Traces and Errors
        • Instrument CLI Scripts
        • Maintenance Events
        • Multiple Production Environments
        • Sampling
        • Services
        • Slow SQL Logging
        • Tracepoints
        • Transactions
        • Weekly Reports
        • Notifications
      • Upgrading
        • Upgrading Debian/Ubuntu
        • Upgrading Linux From Tarball
        • Upgrading RedHat/Centos
        • Package Hosting Migration from AWS S3 to Bintray
        • Update From PHP Extension v4 to v5
        • Upgrade To Tideways CLI 0.4
      • Troubleshooting
        • No Data Transmitted? Troubleshooting Checklist
        • Daemon Disabled By Tideways Backend
        • Debugging Segfaults In PHP
        • How To Install Tideways On My Custom PHP Installation
        • Selinux Enabled
        • Uncaught Error Call To Undefined Function Tideways Enable
        • Undefined Symbol php_json_encode Startup Error
        • Using Tideways With Enabled PHP Openbasedir
        • tideways/profiler Composer Package is abandoned
    • Reference
      • API
        • Authentication Scopes Rate Limiting
        • Issues API
        • History API
        • Hosting Partner API
        • Performance Metrics API
        • Users API
        • Deployment Provisioning API
      • Browser Extension
        • Chrome Extension
      • Concepts
        • Percentiles
        • What is "Unaccounted Wait"
        • Profiler
          • Callgraph Profiler
            • Self-time vs Total-time
          • Timeline Profiler
            • Events
            • Timespans
      • Command Line Interface
        • Overview
        • tideways run
        • tideways benchmark
        • tideways event create
        • tideways tracepoint create
        • Settings
      • PHP Extension
        • Callgraph And Timeline
        • Custom Metadata
        • Custom Timespans
        • Detecting Service Name
        • Detecting Transaction Names
        • Ignore Transactions
        • Logging Errors And Detecting Exceptions
        • Profiling Programmatically In PHP Code
        • The Server Timings API
        • Timeline Event Marker
        • Trigger Callgraph When Function Method Called
      • Daemon
        • Configuration Reference
        • Multiple Environments On Same Server
        • Running The Daemon On A Dedicated Host
      • Proxy
        • Setting Up Tideways Collection Proxy
      • FAQ
        • What Data From My Application Exactly Is Tideways Collecting
        • What Does Exclusive Wall Time Mean
        • What Does Inclusive Wall Time Mean
        • What Is a Trace
        • What Is Rpm Rph Rps Requests Per Minute Hour Second
        • What Is Xhprof
        • Why
      • Integrations
        • E-Mail
        • Basecamp
        • Checkly
        • Notifications
        • Oh Dear!
        • Opsgenie
        • PagerDuty
        • Slack
        • Statsd
        • Webhook
      • Frameworks
        • Drupal
        • Joomla
        • Laravel
      • Account Billing Legal
        • Billing Invoices
        • GDPR Compliance
        • Users Teams And Access Control
      • Tideways Xhprof
        • Tideways Xhprof Extension
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    • Current
  • Documentation
  • Reference
  • FAQ
  • What Is Xhprof

What is XHProf?

PHP Extension originally developed by Facebook and open-source in 2009. The Tideways PHP Profiler is based on this extension, massively extended and improved by us to include more features that are important for profiling PHP applications.

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What Is Rpm Rph Rps Requests Per Minute Hour Second Why
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