Brazil's biggest MU Online portal — since 2003
Topic

Performance

All content about Performance — 23 results.

Performance

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Tutorial

How to diagnose a specific slow SQL query in your MU Online server's database

Find and fix the specific query that's choking your MU Online server's database, using execution plans, indexes, and SQL Server's Profiler/Extended Events.

16 min · Advanced ·
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Tutorial

How to Optimize SQL Server for Better Performance on MU Server

Learn how to configure and optimize SQL Server for MU Online private servers, with specific queries, indexes, and memory tuning steps.

12 min · Advanced ·
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Tutorial

How to optimize MU Online client textures for low-VRAM graphics cards

Reduce MU Online client VRAM usage without destroying visual quality: texture compression, selective resizing, mip mapping, and configuration tweaks for modest PCs.

15 min · Intermediate ·
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Tutorial

How to plan MU server capacity by number of players

Learn how to size the CPU, RAM, bandwidth, and database of your MU Online server based on the real number of concurrent players, avoiding both overspending and freezing at peak.

13 min · Intermediate ·
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Tutorial

How to Monitor CPU, RAM, and Network on a MU Online Server

Learn how to monitor CPU, RAM, and network usage on your MU Online server to anticipate bottlenecks, avoid crashes, and size your VPS correctly.

14 min · Intermediate ·
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Tutorial

Composite indexes for MU Online databases: how to kill slow queries

Diagnose and fix slow queries in your MU Online server database with well-designed composite indexes, from EXPLAIN plans to continuous performance monitoring.

15 min · Advanced ·
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Tutorial

How to configure a dedicated EventServer in MU Online

Understand the role of the EventServer in MU Online and learn to isolate it from the GameServer to run Blood Castle, Devil Square, Chaos Castle, and invasions without lagging the main gameplay during peak hours.

16 min · Advanced ·
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Tutorial

How to Use a CDN to Speed Up Your MU Online Server Website's Assets

Set up a CDN to serve images, CSS, JS, and the downloadable client for your MU Online server website, reducing load times and origin server load during launch spikes.

14 min · Intermediate ·
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Tutorial

How to Balance Load Across Multiple GameServers in MU Online

Distribute your players across several GameServers to support more concurrent players, reduce lag, and keep a single process from freezing the entire server.

15 · Advanced ·
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Tutorial

MySQL tuning for MU Online servers: the complete performance guide

Tune MySQL parameters to support high concurrency on MU Online servers: buffer pool, indexes, connection pool, slow query log, and maintenance routines.

17 min · Advanced ·
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Tutorial

How to optimize your PC to run MU Online without lag

Practical tweaks to run MU Online smoothly even on a weak PC: compatibility and admin mode, resolution and graphics options, disabling heavy effects, fixing stutters in crowded events and configuring Windows for maximum FPS.

13 min · Beginner ·
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Tutorial

How to optimize your MU Online server website for SEO

Learn how to optimize your MU Online server website for Google, with titles, meta tags, speed, structured data and content that attracts new players.

19 min · Intermediate ·
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Tutorial

Old graphics card compatibility in MU Online: a complete guide for server owners

Configure your MU Online server's client and website to run well on old and integrated graphics cards, cutting down on crashes, black screens, and complaints from players with weaker PCs.

14 min · Intermediate ·
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Tutorial

How to reduce GameServer memory usage on your MU Online server

Diagnose and reduce MU Online GameServer memory consumption by identifying leaks, tuning map and event settings, and optimizing the database to avoid crashes from running out of RAM.

15 min · Advanced ·
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Tutorial

Network lag or server lag? How to diagnose the real cause on your MU Online

Learn to tell network lag (latency, packet loss, routing) apart from server lag (CPU, database, GameServer tick) on your MU Online server, with practical ping, traceroute, and internal monitoring tests.

13 min · Intermediate ·
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Tutorial

How to automate load testing on your MU Online server's GameServer

Build a load-testing pipeline that simulates hundreds of simultaneous connections to your MU Online server's ConnectServer and GameServer, measuring latency, CPU/memory usage, and the real limit before launch.

17 min · Advanced ·
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Tutorial

How to optimize SQL Server for many players in MU Online

Tune memory, tempdb, recovery model and SQL Server settings so the MuOnline database can handle hundreds of simultaneous players without stalling login or character saves.

24 min · Advanced ·
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Tutorial

How to diagnose performance bottlenecks on a MU server

A systematic method for finding the root cause of lag and freezes on a MU Online server, isolating whether the bottleneck is in the CPU, disk, network or database before you go swapping out hardware.

15 min · Advanced ·
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Tutorial

Scaling vertically vs. horizontally: how to grow your MU Online server

Understand when to scale your MU Online server vertically (more resources on one machine) or horizontally (more machines/instances), with decision criteria, costs, risks, and a practical migration plan as your player base grows.

15 min · Intermediate ·
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Tutorial

How to partition large database tables on your MU Online server

Learn how to partition large MS SQL Server tables (LogRecords, Character, AccountCharacter) on your MU Online server to keep queries fast even with millions of log and history rows.

16 min · Advanced ·
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Tutorial

How to set up a CDN for MU Online client downloads

Set up a CDN to distribute your MU Online server's client and updates with speed, without overloading your main VPS on launch days and season resets.

16 min · Advanced ·
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Tutorial

How to diagnose a memory leak in your MU Online's GameServer

Identify and mitigate memory leaks in your MU Online server's GameServer using continuous monitoring, profiling tools, and dump analysis, before the process freezes or brings down the server.

16 min · Advanced ·
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Tutorial

How to Load Balance Between Multiple MU Online Servers

Learn to distribute players across multiple GameServers using ConnectServer, configuring routing rules, capacity limits, and automatic failover.

12 min · Advanced ·