Vite's cold and warm builds cost the same. That's not a flex.

Look at this:

Vite cold build: 111ms
Vite warm build: 110ms

One millisecond difference.

That's not impressive performance.
That's an architecture with no memory between runs.

When cold and warm cost the same —
your tool isn't remembering anything.
It's rebuilding from scratch every single time.
Whether you ran it 10 seconds ago or 10 days ago.

What memory looks like

Ionify cold: 50ms
Ionify warm: 20ms

60% faster on warm. Because the engine remembered.

The persistent dependency graph loaded from disk.
The CAS checked which artifacts are still valid.
Only changed modules were retransformed.

The gap between cold and warm isn't a cache trick.
It's the measurable value of a build engine that persists.

Why this compounds across a team

On a single machine, the difference is 80ms.
Noticeable. Not life-changing.

Across a team with CI:

• Every CI run rebuilds what dev already built
• Every machine reconstructs what another machine already knew
• Every deploy sends the full bundle to the browser

Because no tool in the chain remembers anything.

Ionify's persistent graph and CAS are shared.
What one machine computes, another can reuse.
The dependency contracts published at analysis time
are consumed by dev, build, CI, and federation — identically.

One machine's work stops being wasted.

The browser side

After a bugfix deploy:

Because Ionify knows which chunk changed.
Vite knows a build happened.

Ionify is open source and production-ready.
Validated on 11,000+ module, 25,000+ dependency apps.

→ github.com/ionifyjs/ionify ⭐
Drop your warm build time in the comments 👇