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Erlang

OpenResty XRay Apr 1, 2024

OpenResty XRay Updated Apr 1, 2024 6 mins read

Pinpointing the hottest Erlang code paths with high CPU usage (using OpenResty XRay)

Problem: high CPU usage
Spot the CPU-hottest Erlang code paths
Automatic analysis and reports
What is OpenResty XRay

Problem: high CPU usage
Spot the CPU-hottest Erlang code paths
Automatic analysis and reports
What is OpenResty XRay

OpenResty XRay Jan 14, 2023

Automatic Analysis Reports in OpenResty XRay

The Past
The Present
The Future

OpenResty XRay Nov 12, 2021

Ylang: Universal Language for eBPF, Stap+, GDB, and More (Part 1 of 4)

What is Dynamic Tracing
Why the “Y” Name
Getting Started
Various Backends and Runtimes
Why a Unified Frontend Language
The Language Syntax

OpenResty XRay Aug 31, 2020

Introduction to Lua-Land CPU Flame Graphs

What is a Flame Graph
Simple Lua samples
Complicated Lua applications
Sampling overhead
Safety
Compatibility
Other types of Lua-land Flame Graphs

OpenResty XRay Aug 10, 2020

Memory Fragmentation in OpenResty and Nginx's Shared Memory Zones

An empty zone
Filling entries of similar sizes
Deleting odd-numbered keys
Deleting the keys in the first half
Mitigating Fragmentation

OpenResty XRay Aug 4, 2020

How OpenResty and Nginx Shared Memory Zones Consume RAM

Slabs and pages
What is allocated is not what is paid for
Fake Memory Leaks
HUP reload

OpenResty XRay Jan 21, 2020

How OpenResty and Nginx Allocate and Manage Memory

On The System Level
On The Application Level
For Traditional Nginx Servers

OpenResty Open Source Oct 22, 2024

OpenResty 1.27.1.1 Released

Version highlights
Full Changelog
Feedback

OpenResty XRay Oct 10, 2024

Analyzing Tomcat Java Web Application Request Latency (Using OpenResty XRay)

Analyzing Tomcat Java Web application request latency
Flexible filtering conditions for request capture
Detailed request information capture
PCAP packet capture functionality
Practical application examples

OpenResty XRay Sep 20, 2024

Analyzing CPU, off-CPU and Disk I/O Usage of Java Applications (Using OpenResty XRay)

High CPU usage issues in Java applications
CPU blocking issues in Java applications
High disk I/O issues in Java applications
Supported Java versions and operating systems
Performance impact and overhead
Future plans

OpenResty XRay Sep 5, 2024

A Quick Tour to OpenResty XRay’s Web Console

Introduction to Insight Page
Comprehensive Report Details
Dashboard Overview
Use Guided Analysis Feature to Analyze Online
Setting and Configuration
What is OpenResty XRay

OpenResty XRay Aug 12, 2024

Pinpointing the Python Code Paths with High Disk I/O (using OpenResty XRay)

Problem: high disk I/O
Spot the problematic Python code paths
Automatic analysis and reports
What is OpenResty XRay

2024 Oct

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2024 Jul

Install OpenResty XRay’s Agents on Kubernetes cluster July 26, 2024

2024 Jun

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2023 Jan

Automatic Analysis Reports in OpenResty XRay January 14, 2023

2022 Aug

Resolving Bilibili’s major site incident with OpenResty XRay August 24, 2022

2022 Jul

Tracing the Slowest PCRE Regular Expressions in OpenResty or Nginx Processes July 14, 2022

2022 Jun

2022 Mar

Limit Request Rate by Custom Keys in OpenResty Edge March 1, 2022

2021 Dec

2021 Nov

2021 Oct

Gateway Config's Version Control & Release Management in OpenResty Edge October 19, 2021

2021 Sep

2021 Aug

OpenResty 1.19.9.1 released August 22, 2021

2021 Jun

2021 May

2021 Apr

2021 Mar

2021 Feb

2020 Dec

2020 Nov

2020 Aug

2020 Jul

OpenResty 1.17.8.1 released July 8, 2020

2020 Jun

2020 Mar

OpenResty 1.15.8.3 + OpenResty 1.17.8.1 RC1 released March 21, 2020

2020 Jan

How OpenResty and Nginx Allocate and Manage Memory January 21, 2020

2019 Aug

Join Us August 5, 2019

2019 Jan

The LuaJIT GC64 Mode January 7, 2019

OpenResty Blog

OpenResty's Official Blog for Technologies & Products

Pinpointing the hottest Erlang code paths with high CPU usage (using OpenResty XRay)

Automatic Analysis Reports in OpenResty XRay

Ylang: Universal Language for eBPF, Stap+, GDB, and More (Part 1 of 4)

Introduction to Lua-Land CPU Flame Graphs

Memory Fragmentation in OpenResty and Nginx's Shared Memory Zones

How OpenResty and Nginx Shared Memory Zones Consume RAM

How OpenResty and Nginx Allocate and Manage Memory

OpenResty 1.27.1.1 Released

Analyzing Tomcat Java Web Application Request Latency (Using OpenResty XRay)

Analyzing CPU, off-CPU and Disk I/O Usage of Java Applications (Using OpenResty XRay)

A Quick Tour to OpenResty XRay’s Web Console

Pinpointing the Python Code Paths with High Disk I/O (using OpenResty XRay)

Pinpointing the hottest Erlang code paths with high CPU usage (using OpenResty XRay)

Automatic Analysis Reports in OpenResty XRay

Ylang: Universal Language for eBPF, Stap+, GDB, and More (Part 1 of 4)

Introduction to Lua-Land CPU Flame Graphs

Memory Fragmentation in OpenResty and Nginx's Shared Memory Zones

How OpenResty and Nginx Shared Memory Zones Consume RAM

How OpenResty and Nginx Allocate and Manage Memory

OpenResty 1.27.1.1 Released

Analyzing Tomcat Java Web Application Request Latency (Using OpenResty XRay)

Analyzing CPU, off-CPU and Disk I/O Usage of Java Applications (Using OpenResty XRay)

A Quick Tour to OpenResty XRay’s Web Console

Pinpointing the Python Code Paths with High Disk I/O (using OpenResty XRay)

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