Soak Testing & Endurance Analysis
High-concurrency endurance testing for live-service games and enterprise systems. We simulate extended, real-world uptime cycles to expose resource degradation, memory leaks, and performance drift before they impact your players.
12–24 Hour Endurance Cycles
Comprehensive Endurance Validation
Memory Leak & Resource Exhaustion Detection
Your system may survive 30 minutes of traffic.
Can it survive 24 hours?
Performance isn't just about handling peak traffic; it's about stability over time. Many systems appear robust during short-term tests but degrade silently when subjected to continuous operations. Cyrex delivers Soak Testing services designed to evaluate how your infrastructure performs under sustained, elevated load over extended periods. We don’t just test for immediate failure; we identify the slow-motion technical debt that only surfaces after a full day of high-concurrency operation.
What Is Soak Testing?
Soak testing (also known as endurance testing) evaluates how your system behaves when subjected to a steady, sustained load over an extended timeframe. While other tests focus on capacity or speed, soak testing answers a critical question: Does your system degrade over time?
Performance testing that uncovers "slow-motion" failures.
Memory Leaks: Identifying gradual resource erosion that only surfaces after hours of continuous operation.
Resource Exhaustion: Detecting processes that slowly consume CPU or RAM until the system becomes unresponsive.
Thread Pool Starvation: Ensuring your application doesn't slowly run out of available threads to process requests.
Cache Overflow Issues: Validating cache TTL policies to prevent data bloat over time.
Database Connection Persistence: Checking for connection leaks or stale sessions that accumulate throughout the day.
Log Growth Saturation: Monitoring how system logs impact storage and performance during prolonged uptime.
Background Job Interference: Ensuring periodic cleanup or maintenance tasks do not cause "hiccups" in your primary services.
Most infrastructure issues are not immediate - they are cumulative.
These failures rarely appear during short performance tests; they surface only under prolonged, high-concurrency execution.
Why Long-Term Stability Fails
Many systems perform exceptionally well during initial load tests but degrade silently over time. Soak testing is the only way to uncover these "silent killers" - architectural inefficiencies that compound until your system inevitably hits a critical failure point.
Common Failure Points
Silent failures that compound over time
Gradual memory consumption
Unreleased file descriptors
Inefficient garbage collection
Session buildup
Poor cache eviction policies
Scheduled job conflicts
Database connection accumulation
Soak testing exposes these silent failure patterns before they impact production users. We identify the 'technical debt' that only reveals itself during prolonged execution.
Our Technology: Cyrex Swarm™
Soak testing requires more than just high traffic - it requires endurance. All soak testing engagements are powered by Cyrex Swarm™, our proprietary platform engineered to maintain high-concurrency simulation for extended 12–24+ hour cycles. We do not use synthetic "dead" traffic. We simulate active, long-lived sessions that evolve over time, mirroring exactly how your players or users interact with your backend.
Swarm Simulates
Operates at Network Level
This is not artificial packet flooding. It is realistic, long-duration user-behavior simulation.
By accurately replicating continuous interaction, we identify the cumulative failures that simple pings will never trigger.
Trusted by the Best
Real experiences from teams we've protected
Cyrex is clearly the market leader. They go beyond simple testing to provide full player-representative load testing that gives us 10/10 confidence for launch.
Tencent
Productive and insightful. Cyrex helped us uncover potential bottlenecks in Dying Light: The Beast before release, ensuring a smoother player experience.
Techland
Market leaders in security. Their detailed reports and suggested actions gave us the insight needed to ensure our games were stable from day one.
Sumo Digital
Crucial expertise for the launch of Dune: Awakening. They were highly responsive and instrumental in resolving security and performance issues.
Funcom
A key partner in scaling our multiplayer capabilities. Cyrex delivers quality, flexibility, and results that greatly benefit our live service games.
Avalanche Studios
Cyrex made penetration testing a breeze. Their insights are spot-on and their understanding of the gaming industry is exceptional.
AccelByte
Cyrex is clearly the market leader. They go beyond simple testing to provide full player-representative load testing that gives us 10/10 confidence for launch.
Tencent
Productive and insightful. Cyrex helped us uncover potential bottlenecks in Dying Light: The Beast before release, ensuring a smoother player experience.
Techland
Market leaders in security. Their detailed reports and suggested actions gave us the insight needed to ensure our games were stable from day one.
Sumo Digital
Crucial expertise for the launch of Dune: Awakening. They were highly responsive and instrumental in resolving security and performance issues.
Funcom
A key partner in scaling our multiplayer capabilities. Cyrex delivers quality, flexibility, and results that greatly benefit our live service games.
Avalanche Studios
Cyrex made penetration testing a breeze. Their insights are spot-on and their understanding of the gaming industry is exceptional.
AccelByte
Cyrex is clearly the market leader. They go beyond simple testing to provide full player-representative load testing that gives us 10/10 confidence for launch.
Tencent
Productive and insightful. Cyrex helped us uncover potential bottlenecks in Dying Light: The Beast before release, ensuring a smoother player experience.
Techland
Market leaders in security. Their detailed reports and suggested actions gave us the insight needed to ensure our games were stable from day one.
Sumo Digital
Crucial expertise for the launch of Dune: Awakening. They were highly responsive and instrumental in resolving security and performance issues.
Funcom
A key partner in scaling our multiplayer capabilities. Cyrex delivers quality, flexibility, and results that greatly benefit our live service games.
Avalanche Studios
Cyrex made penetration testing a breeze. Their insights are spot-on and their understanding of the gaming industry is exceptional.
AccelByte
Soak Testing vs. Other Performance Tests
Load Testing
Validates expected traffic levels
Stress Testing
Identifies maximum breaking point
Spike Testing
Tests sudden traffic bursts
Soak Testing
Validates long-term endurance
Each test addresses a unique architectural failure mode. While others define capacity, soak testing specifically protects your uptime by identifying the degradation that only occurs over time.
Load Testing Engagements Delivered
Cyrex has validated infrastructure at scale for AAA studios and enterprise platforms.
Warhammer 40K: Speed Freeks
Caged Element & PLAION
Death Sprint 66
Sumo Digital (supported by Tencent)
NFL Rivals
Mythical
Nitro Nation: World Tour
Mythical
Mech Arena
Plarium
Predecessor
Omeda Studios
RAID: Shadow Legends
Plarium
Rumbleverse
Iron Galaxy Studios & Epic Games Publishing
Scavengers
Improbable Worlds Limited & Midwinter Entertainment
Space Punks
Jagex & Flying Wild Hog
How Our Soak Testing Works
Cyrex's structured three-stage load testing methodology
When Soak Testing Is Critical
If your system is designed to run 24/7, testing for an hour is insufficient. You need to validate stability across full daily cycles, including maintenance windows and peak-to-trough transitions. Soak testing is mandatory for any architecture where performance drift equals downtime.
Why Teams Choose Cyrex for Soak Testing
Ensure Your
Infrastructure Endures
Short tests don't reveal long-term instability.
Don't wait for "time-bomb" issues like memory leaks or thread starvation to crash your servers. Engage Cyrex to validate that your system performs consistently under sustained load and prolonged uptime.