---
metadata:
  - name: generator
    content: Diplodoc Platform v5.54.4
alternate:
  - https://yandex.com/dev/games/doc/en/concepts/performance.md
  - https://yandex.com/dev/games/doc/ru/concepts/performance.md
  - https://yandex.com/dev/games/doc/tr/concepts/performance.md
  - https://yandex.com/dev/games/doc/zh/concepts/performance.md
  - href: en/concepts/performance.md
    type: text/markdown
    title: Markdown version
  - href: ../llms.txt
    type: text/markdown
    title: llms.txt
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.com/dev/games/doc/en/llms.txt

# Performance in DevTools

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The Yandex Games platform allows you to track [technical metrics](https://yandex.com/dev/games/doc/en/concepts/metric.md#tech) **Game Ready** and **Time To Interactive** (TTI) in the [Performance](https://developer.chrome.com/docs/devtools/performance/overview){.external} tab in DevTools. You can see when metrics are triggered, what tasks are performed before them, and use this information to optimize and speed up processes.

## How marks are sent {#send-marks}

- The **Game Ready** mark is triggered when the [ysdk.features.LoadingAPI.ready()](https://yandex.com/dev/games/doc/en/sdk/sdk-game-events.md#gameready) method is called.
- The [Time To Interactive](https://developer.chrome.com/docs/lighthouse/performance/interactive){.external} mark is triggered automatically under certain conditions.

## How to view marks {#check-marks}

1. Launch the game using any convenient method.
2. Open DevTools:
    - Windows: **F12**, **Ctrl** + **Shift** + **I**
    - macOS: **Cmd** + **Opt** + **I**
3. Go to the **Performance** tab.
4. In the top left corner, click **Record and reload** ![](../_images/performance-devtools/reload.svg) and wait for the profile to build. Yellow marks with the names [Game Ready](*gr) and [Time To Interactive](*tti) will appear in the **Timings** line.

    {% cut "Example of a built profile" %}

    ![](../_images/performance-devtools/profile-ready.webp)

    {% endcut %}

[*gr]: ![](../_images/performance-devtools/game-ready-mark.webp)

[*tti]: ![](../_images/performance-devtools/tti-mark.webp)