---
title: Threads
slug: zixi-broadcaster-zec-current-version/threads
docTags: 
createdAt: 2024-12-26T16:20:40.358Z
---

The Threads screen enables the configuration of the maximum number of concurrent CPU threads allowed for each component/service. A fraction means a proportion of the number of cores. Enter -1 to limit the threads according to the number of cores. 

![Threads ](https://api.archbee.com/api/optimize/mzxtTQEvCNIdUNgF2kuwJ/eKmNNLmMsCNi5lXUIvwwC_image.png)

| **Parameter**       | **Description**                                                |
| ------------------- | -------------------------------------------------------------- |
| Input               | Maximal number of threads for all input streams.               |
| Output              | Maximal number of threads for all output streams.              |
| VOD                 | Maximal number of threads for all VOD streams.                 |
| Read                |                                                                |
| RTMP                | Maximal number of threads for RTMP streams.                    |
| UDP In              | Maximal number of threads for UDP input streams.               |
| UDP Out             | Maximal number of threads for UDP output streams.              |
| HTTP In             |                                                                |
| Transcoder          | Maximal number of threads for transcoding.                     |
| Push Output Receive |                                                                |
| HTTP                | Maximal number of threads for the HTTP server.                 |
| Authorization       | Maximal number of threads for the authorization component.     |
| Analyzer            | Maximal number of threads for the analyzer component.          |
| Adaptive            | Maximal number of threads for segmenting adaptive groups.      |
| Various Inputs      |                                                                |
| Accept              |                                                                |
| DPDK receive        | Maximal number of receiving threads in the DPDK network stack. |

## Advanced Mode

The fields discussed below are optional and available only in **Advanced Mode**.

To enter Advanced Mode add the URL parameter `?advanced=1` to the Zixi Broadcaster URL in your browser and press Enter/Return to reload the page:

::Image[]{src="https://api.archbee.com/api/optimize/amUtKWPrNQCS-26DKyGuI-5OBE4QsRN0icABdoD4ciK-20250421-173825.png" size="70" width="800" height="55" position="center" alt="Advanced Mode URL Param" darkWidth="800" darkHeight="55" showCaption="false"}

:::hint{type="info"}
Note the Advanced Mode settings are generally intended for advanced users and special cases. If you do not understand the settings, you should probably accept the default values.
:::

![Threads menu](https://api.archbee.com/api/optimize/mzxtTQEvCNIdUNgF2kuwJ/Xpv-511f0v0OamDK2lbj__settings-threads.png "Threads menu")

- Timing Accuracy 
  - Highest (Lowest Throughput)
  - Very High
  - High
  - Balanced
  - Low
  - Very Low
  - Lowest (Highest Throughput)