💸
⚖️ Decide
LV2 · Toolooo Standard
Explore → See → Understand → ActUnderstand it. Feature Level describes the depth of the tool experience.

Distributed Systems Tax

See the real cost of splitting a system into another network hop before you decide to do it.

EngineeringArchitectureBackend
2
15ms
0.5%
In-processNetwork hop 1+15msNetwork hop 2+15ms
Added latency
+30ms
vs. 0ms in-process
Combined success rate
99.00%
New complexity, by category
These are illustrative relative scores (1-10) from a simple heuristic, not an academic formula — use them to spot which concerns to plan for early, not to benchmark a real system.
Network
1.4
Coordination
1.4
Data consistency
1.4
Observability
2.9
Testing
2.8
Security surface
3.5
Deployment
3.2
ℹ
This is the tax, not a verdict
Every hop you add buys something — independent scaling, independent deploys, a clearer boundary — but it isn't free. 2 hops costs you 30ms and drops your success rate from 100% to 99.00% before you've written a single line of business logic. Decide if what you're buying is worth that, on purpose.
What this tool does and why

Before you start

What

See the real cost of splitting a system into another network hop before you decide to do it.

Why

Every network boundary adds latency, failure modes, and operational work that a single-process design avoids.

Your Result and Action update in the tool as you change its inputs.

Model note

This browser-side model explains the inputs you choose. Check an important decision against the real system, brief, or production constraints.

Next

Use the result to choose a connected next move.

Timeout Chain PlannerPlan one end-to-end deadline across serial calls, retries, and remaining downstream budget.API Pagination PlannerCompare pagination behavior and explore the tradeoff between page size and request count.
How this tool stays honest

How it works

Every service split adds latency, failure modes, and operational complexity that a single process never had. This lays out that cost explicitly for a proposed split, so "just make it a microservice" is a decision, not a reflex.

Assumptions

The tool runs in your browser and models the information you provide. It does not know facts outside that model.

Limitations

The comparison uses transparent editorial scores and the priorities you choose. It supports a decision; it does not prove that one technology or approach is objectively best.

Understand Distributed Systems Tax

What this tool helps you understand

Every service split adds latency, failure modes, and operational complexity that a single process never had. This lays out that cost explicitly for a proposed split, so "just make it a microservice" is a decision, not a reflex.

When to use it

Before adding network boundaries to an application.

Try a scenario

Compare a local operation with a multi-service path. Inspect modeled latency and coordination costs before splitting a working component.

How to read the result

Treat the leading option as the best fit for the priorities you selected. Review the score breakdown before acting because changing those priorities can change the result.

Assumptions and limits

The comparison uses transparent editorial scores and the priorities you choose. It supports a decision; it does not prove that one technology or approach is objectively best.

Toolooo is part of Khizooology, created byKhizar Imtiaz (khizooo).