Vix.cpp

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Performance ​

Vix is designed for predictable, high-performance networking.

Performance in Vix comes from:

  • Explicit control
  • Minimal abstraction layers
  • No garbage collection
  • No hidden middleware chains

Minimal overhead model ​

A typical Vix request flow is:

Request → Route match → Handler → Response → End

There are no:

  • Reflection systems
  • Dynamic runtime inspection layers
  • Hidden serialization pipelines

Everything you write is what executes.

Minimal example ​

cpp
#include <vix.hpp>

using namespace vix;

int main()
{
  App app;

  app.get("/", [](Request&, Response& res) {
    res.json({"message", "Fast and explicit"});
  });

  app.run(8080);
}

The handler is a simple lambda. No extra runtime layers are involved.

Avoiding performance pitfalls ​

1. Avoid heavy allocations in hot paths ​

Instead of:

cpp
std::string large = some_expensive_operation();
res.json({"data", large});

Prefer precomputed or cached data when possible.

2. Keep handlers small ​

Handlers should:

  • Parse input
  • Perform minimal logic
  • Send response

Move heavy logic into dedicated components.

3. Avoid unnecessary JSON depth ​

Deeply nested objects increase serialization cost.

Prefer structured but reasonable JSON layouts.

Hardware considerations ​

For production workloads:

  • Use multi-core CPUs
  • Use fast storage (NVMe preferred)
  • Avoid memory pressure
  • Use proper OS tuning

Vix itself does not impose artificial limits. Hardware and architecture choices matter.

Throughput mindset ​

To maximize throughput:

  • Minimize blocking operations
  • Avoid unnecessary copying
  • Reuse resources when possible
  • Keep I/O efficient

Example of lightweight route:

cpp
app.get("/ping", [](Request&, Response& res) {
  res.json({"message", "pong"});
});

This route has near-zero overhead.

Benchmarking rule ​

Always benchmark your real workload.

Synthetic benchmarks may not reflect:

  • Real traffic patterns
  • Database latency
  • External API delays

Measure what matters.

Philosophy ​

Performance in Vix is not magic.

It comes from:

  • Simplicity
  • Explicit behavior
  • Predictable execution
  • Modern C++ efficiency

If you write efficient C++, Vix stays efficient.