The reliable way to make a dedicated game server faster is to measure its tick time and limiting resource under a repeatable workload, then change one variable at a time. Build a headless server-only binary, remove client work, separate simulation rate from network snapshot rate, and tune CPU placement, storage, memory and networking only when telemetry shows those components are limiting performance.
Godlike.Host hosts servers for Minecraft and more than 40 other games, with free DDoS protection and 24/7 support.
Start with a repeatable performance baseline
Optimization without a baseline turns every change into guesswork. Reproduce the same map or world, mods, player count, bot count, connection pattern and gameplay events each time. Record a baseline during quiet operation and during the busiest interval you can reproduce. Keep the test duration and software build constant so that a result can be attributed to a change rather than to a different workload.
As an Amazon Associate I earn from qualifying purchases.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Metrics that reveal the real bottleneck
| Metric | What it tells you | Why it matters |
|---|---|---|
| Server delta time | The time difference between the current server tick and the previous tick. | Spikes show that the server is missing its intended cadence. |
| Tick rate and tick time | How often ticks are completed and how long each one takes. | They expose simulation work that exceeds the target interval. |
| World or simulation tick time | The portion of a tick spent updating gameplay state. | It helps separate game-logic cost from networking or operating-system delay. |
| CPU by core or thread | Utilization of the main simulation thread and worker threads. | Aggregate CPU can look moderate while one critical thread is saturated. |
| Memory, swap and page activity | Resident memory use and whether the operating system is paging. | Swap or memory pressure can create long, irregular pauses. |
| Disk latency, throughput and queue depth | Time spent waiting for assets, saves, logs or databases. | It identifies storage as a cause instead of assuming every pause is CPU-related. |
| Network throughput, packet rate, jitter and packet loss | Load and quality of the path between clients and the host. | Loss and delay can feel like server lag even when ticks are on time. |
| Connections, uptime and application errors | Population, stability and failures over the test window. | A change that improves speed but causes disconnects or crashes is not an optimization. |
Amazon GameLift Servers lists server delta time, tick rate, tick time, world tick time, network I/O, packet loss, memory and CPU as useful session-level dashboard metrics. A 2026 Linux operations guide similarly recommends watching CPU, RAM and swap, disk capacity and I/O, network throughput and packet loss, uptime, and tick or simulation performance. Those categories form a practical minimum even when you run a single unmanaged host.
A controlled test procedure
- Record the game build, dedicated-server build, operating-system kernel, configuration, mods and map.
- Generate a fixed workload: the same number of players or bots, movement pattern, combat events, entity count and connection churn.
- Capture several minutes that include the busiest repeatable period, not only an idle menu or empty map.
- Export tick, per-core CPU, memory and swap, storage and network measurements with timestamps so spikes can be compared.
- Change one setting or component, rerun the identical workload, and keep the result only if tick consistency or the measured bottleneck improves without unacceptable side effects.
Do not publish a universal CPU, RAM or bandwidth requirement from one test. Requirements vary with engine, simulation complexity, concurrent players, mods and tick configuration.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Build a server-only process
A dedicated server should run headlessly. Epic describes a dedicated server as a server that runs without clients playing locally or rendering; its process concentrates on gameplay logic and on moderating information received from clients. Running a client build on the host wastes CPU, memory and sometimes GPU resources.
What a headless build can remove
Unity’s Dedicated Server build target is designed for networked applications. Its documented optimizations automatically deactivate the Audio Subsystem, remove lighting threads and selected PlayerLoop callbacks, and remove assets that are only needed by a GPU. Unity also documents optional removal of shaders and fonts, conditional compilation, separate server and client implementations, and further PlayerLoop removal.
These removals help only when the server does not need the corresponding asset, callback or subsystem for authoritative gameplay. Audit code that references audio, visual effects, lighting, fonts or client-only callbacks before deleting it. A feature that appears cosmetic may still contain collision, timing or gameplay logic that the server must retain.
Server-build checklist
- Use the engine’s dedicated or server build target rather than a desktop client executable.
- Disable rendering, audio and GPU-only asset loading when they are not required by authoritative logic.
- Compile server and client code paths separately where the engine supports conditional compilation.
- Remove unnecessary PlayerLoop callbacks after profiling their work and verifying that no simulation system depends on them.
- Confirm that logging remains sufficient to diagnose ticks, saves, connections and errors; excessive debug logging can itself become a storage bottleneck.
Identify the limiting resource before tuning settings
Low overall CPU usage does not prove that the server has spare processing capacity. A single main thread can overrun its tick budget while other cores are idle. Conversely, a high aggregate reading may come from optional workers while the simulation thread remains healthy.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Match symptoms to evidence
| Player-visible symptom | Evidence to check first | Likely direction |
|---|---|---|
| Consistent simulation stutter with one core near full utilization | Main-thread CPU and world tick time | Optimize game logic, entity counts or replication; a faster storage device will not fix a CPU-bound tick. |
| Periodic long pauses and swap activity | Memory pressure, swap-in or swap-out and allocation behavior | Add memory or reduce the working set after confirming paging. |
| Pauses during saves, loads or log rotation | Disk wait, latency and queue depth aligned with the pause | Investigate storage, save frequency and logging before changing tick rates. |
| Rubber-banding with normal server tick time | Round-trip latency, jitter, packet loss and inbound or outbound packet rates | Investigate the network path, host capacity and routing rather than simulation code. |
| Ticks progressively falling behind | Server delta time and consecutive tick durations | Look for a catch-up spiral caused by work that exceeds the target interval. |
Profile the workload before changing CPU affinity, NUMA policy, tick rates or hardware. A setting that helps one engine or map can harm another, particularly when it reduces the cores available to a busy simulation.
Set simulation and network rates deliberately
Simulation frequency and network snapshot frequency are different controls. The simulation rate determines how often authoritative game state is advanced; the snapshot or network rate determines how often state is constructed and sent to clients.
Recommended Free Tools
| Control | Primary effect | Trade-off |
|---|---|---|
| Simulation tick rate | Updates physics, gameplay rules, AI and other authoritative systems. | A higher rate can improve temporal precision but increases CPU work and leaves less headroom. |
| Network snapshot or tick rate | Builds and transmits replicated state to clients. | A lower rate can save substantial CPU, while increasing interpolation delay and potentially harming hit registration or responsiveness. |
Unity Netcode documentation gives a default SimulationTickRate of 60 in its documented package and exposes a separate NetworkTickRate. Unity notes that snapshot construction and sending are often the most significant CPU cost in a multiplayer game. If profiling shows replication is the expensive part, test a lower snapshot rate while checking interpolation, hit registration, packet loss and perceived responsiveness. Keep the simulation rate high enough for the game’s mechanics; do not lower it merely because network traffic is high.
Prevent a catch-up spiral
Unity documents a catch-up spiral: when an update takes longer than its target interval, the server may execute multiple simulation steps on the next update. Those extra steps consume more time, causing the server to fall further behind. The remedy is to remove the cause—overloaded logic, too many entities, expensive replication or insufficient CPU—not to raise a rate blindly.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
On headless servers, Unity’s Auto mode selects Sleep behavior, which can reduce idle CPU use. Verify that the selected sleep behavior does not conflict with your timing requirements, then compare tick consistency under real load rather than judging it from idle utilization.
A safe rate-tuning sequence
- Measure simulation and network costs separately in the same workload.
- Confirm that the simulation rate meets the game’s physics, combat and movement requirements.
- If replication is the measured cost, lower only the network snapshot rate in a small step.
- Retest packet loss, interpolation, hit registration, tick time and player-perceived responsiveness.
- Revert the change if quality degrades or if CPU headroom does not improve.
Use CPU scheduling, affinity and NUMA with evidence
Linux GameMode documents controls for CPU-governor selection, I/O priority, niceness, scheduler behavior, core pinning and custom scripts. These controls can reduce contention, but they do not create more processing capacity. Apply them after profiling and keep a rollback configuration.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Affinity is placement, not a reservation
Ubuntu’s systemd settings for CPUAffinity, NUMAPolicy and NUMAMask define where a service may run. Ubuntu warns that these are placement policies rather than exclusive reservations. Pinning a server to too few cores can make latency worse when worker threads, garbage collection or network processing compete for the same limited CPUs.
Test a proposed affinity in stages: first leave scheduling unrestricted, then constrain placement only when measurements show cross-core or cross-node effects. Compare main-thread time, worker contention, tick variance and memory locality, not just average CPU percentage.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
NUMA locality is workload-specific
Riot Games reported an approximately 5% performance improvement in its own 2020 VALORANT server investigation after improving NUMA-local memory access from about 50% to 97–99%. That is an engineering case study, not a guaranteed gain for another engine, processor or workload. Use hardware counters or operating-system telemetry to establish remote-memory traffic before attempting similar placement changes.
Separate network quality from simulation speed
Measure round-trip latency, jitter, inbound and outbound packet rates, packet loss and server tick time together. A player may describe both a delayed network path and an overloaded simulation as “lag,” but the fixes are different. Normal tick time with rising loss points toward the path, host interface, routing or upstream capacity; rising tick time with clean delivery points toward simulation or host contention.
Choose a networking model that fits the deployment
For Unreal projects, Epic documents Steam Sockets features including relay networking, DDoS protection, end-to-end encryption, NAT traversal and ping calculation. A relay can simplify reachability and add protection, while direct addressing may suit a controlled deployment with adequate perimeter defenses. Select the model according to your topology, threat model and capacity tests. Relay or encryption features do not compensate for an undersized simulation host or an overloaded link.
- Track loss separately for each region or provider; an average can hide a badly affected group of players.
- Watch packet rate as well as bandwidth. Many small packets can stress CPU or connection tracking before a bandwidth graph looks full.
- Correlate disconnects and retransmissions with server errors and interface saturation.
- Keep security controls enabled during performance tests; removing protection can produce a misleading result.
Choose storage, memory and CPU upgrades from measurements
When an NVMe SSD helps
Storage affects asset loading, world saves, log writes and databases. A 2026 Linux operations guide recommends NVMe where possible while emphasizing that disk I/O should be watched rather than replaced blindly. An NVMe SSD is a targeted upgrade when latency or queueing aligns with save, load or logging stalls. It will not cure tick overruns caused by a saturated simulation thread.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Compare storage latency and wait time before and after the change under the same save and load workload. Also check filesystem space, write durability and backup behavior; a fast device is not useful if it fails to preserve world state.
When to add RAM
Add memory when telemetry shows sustained pressure, swap activity or a working set that approaches the host limit. Reduce unnecessary assets, logs or co-located services when that is cheaper and safer than adding capacity. After a memory change, verify that swap remains inactive during the busiest test rather than relying on total installed RAM alone.
When to select a faster CPU
Choose a higher-frequency or stronger single-thread CPU when profiling shows the authoritative simulation thread is CPU-bound. More cores help only when the engine and workload can use them; they do not automatically accelerate a serial tick. Compare tick-time distribution and worst-case spikes, not only average utilization.
| Observed limit | Targeted response | Do not assume |
|---|---|---|
| Disk wait during saves or loads | Faster storage, save scheduling and write-path review | That an SSD changes CPU-bound simulation. |
| Swap or memory pressure | More RAM or a smaller working set | That unused disk space is equivalent to RAM. |
| One saturated simulation thread | Logic, entity and replication optimization or faster single-thread performance | That adding cores fixes serial work. |
| Network loss or jitter | Path, interface, routing and capacity investigation | That a higher tick rate repairs packet loss. |
Scale beyond one host when operations become the bottleneck
Multiple sessions introduce fleet-level problems: placement, health, capacity, logs, scaling and per-session visibility. Managed services can expose controls that are difficult to build around a single machine.
Session-level observability
Amazon GameLift Servers documents dashboards for tick consistency, tick time, world update time, network I/O, packet loss, memory and CPU for individual sessions. That view helps identify whether a particular map, region or player group is responsible for degradation instead of averaging all sessions together.
Free tools Windows power users keep installed
One-click scans. No signup required.
Fleet-level controls
GameFabric documents fleet CPU and memory dashboards, scaling activity, node connectivity, logs and cluster resource gaps. Those signals support capacity planning and replacement of unhealthy nodes. Before adopting any managed option, verify current pricing, supported regions, quotas, service limits and partner terms; these details can change and determine cost per concurrent player or session.
Compare deployment options on the right axes
| Axis | Questions to answer |
|---|---|
| Measured bottleneck | Does the option address CPU, memory, storage, network or operations rather than a different problem? |
| Tick consistency | Can you see worst-case tick time and server delta time, not only averages? |
| Headroom | How much CPU and memory remains during the busiest expected session? |
| Network path | Are latency, loss, relay behavior and regional routing visible? |
| Storage latency | Are saves, logs and databases isolated and measured? |
| Operational complexity | Who handles patching, health checks, scaling, backups and incident response? |
| Security | What protections, encryption, access controls and DDoS options are included? |
| Cost | What is the recurring cost per concurrent player or session at the required regions and capacity? |
Troubleshoot lag with a decision path
If players report lag but tick time is stable
- Check round-trip latency, jitter and packet loss by region and provider.
- Check inbound and outbound packet rates, interface errors and host bandwidth.
- Compare direct and relay paths only if both are supported by the deployment, keeping security controls enabled.
- Inspect disconnects, retransmissions and routing changes before altering simulation settings.
If tick time overruns while aggregate CPU is low
- Inspect per-core and per-thread CPU to find a saturated main thread.
- Profile world update, AI, physics, entity counts and replication work.
- Check whether affinity or NUMA placement is restricting the thread or forcing remote memory access.
- Reduce the measured expensive work or move to a stronger single-thread CPU; do not assume more total cores will help.
If lag appears during saves or loads
- Align disk-latency and queue-depth graphs with the pauses.
- Check filesystem capacity, log volume and database behavior.
- Test an NVMe device or a revised write schedule only if storage wait is confirmed.
- Verify save durability and recovery before accepting a faster but riskier write mode.
If the server progressively falls behind
- Inspect server delta time and consecutive tick durations for catch-up behavior.
- Find the operation that exceeds the target interval: logic, entities, replication, garbage collection or CPU contention.
- Remove that cause or reduce the relevant workload.
- Retest with the original player count and traffic pattern; raising a rate without removing the overrun can intensify the spiral.
A change-control checklist for production
- Keep a dated record of builds, configuration, workload and telemetry for every test.
- Make one material change at a time and define what measurement must improve before deployment.
- Use a canary session or small server group before applying a setting fleet-wide.
- Retain the previous configuration and a rollback command or file.
- Watch worst-case tick time, packet loss, memory pressure and errors after deployment, not only the first few minutes.
- Recheck assumptions after adding a map, mod, entity type, region or player tier; the bottleneck can move.
There is no broadly applicable percentage improvement for dedicated-server optimization. Results depend on the engine, workload, player count, mods, hardware and the bottleneck identified by measurement. The durable method is to keep the server headless, observe tick and resource behavior, make a targeted change, and validate it against the same workload.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
