# Interface: GpuTimer

Defined in: [gpu-timer.ts:4](https://github.com/debuffjp/debuff/blob/b018c1a068ef1bc6d0d897e130238baa96957244/packages/spryte/src/gpu-timer.ts#L4)

GPU time for the work submitted between `begin()` and `end()`, read a few frames later. See `gpuTimer`.

## Properties

### ms

> `readonly` **ms**: `number` \| `undefined`

Defined in: [gpu-timer.ts:11](https://github.com/debuffjp/debuff/blob/b018c1a068ef1bc6d0d897e130238baa96957244/packages/spryte/src/gpu-timer.ts#L11)

Smoothed GPU milliseconds per `begin()`/`end()` pair, or `undefined` until a result arrives, when timing
isn't supported, and after a context loss or a GPU timing glitch (a "disjoint" event) until new results come.

***

### supported

> `readonly` **supported**: `boolean`

Defined in: [gpu-timer.ts:6](https://github.com/debuffjp/debuff/blob/b018c1a068ef1bc6d0d897e130238baa96957244/packages/spryte/src/gpu-timer.ts#L6)

Whether this browser and backend can time the GPU (WebGL2 with `EXT_disjoint_timer_query_webgl2`).

## Methods

### begin()

> **begin**(): `void`

Defined in: [gpu-timer.ts:13](https://github.com/debuffjp/debuff/blob/b018c1a068ef1bc6d0d897e130238baa96957244/packages/spryte/src/gpu-timer.ts#L13)

Start timing. Call before `draw.begin()` to time the whole frame.

#### Returns

`void`

***

### dispose()

> **dispose**(): `void`

Defined in: [gpu-timer.ts:17](https://github.com/debuffjp/debuff/blob/b018c1a068ef1bc6d0d897e130238baa96957244/packages/spryte/src/gpu-timer.ts#L17)

Free the GPU queries.

#### Returns

`void`

***

### end()

> **end**(): `void`

Defined in: [gpu-timer.ts:15](https://github.com/debuffjp/debuff/blob/b018c1a068ef1bc6d0d897e130238baa96957244/packages/spryte/src/gpu-timer.ts#L15)

Stop timing, and collect any results the GPU has finished. Call after `draw.end()`.

#### Returns

`void`