--- title: ZEC Threads slug: zixi-broadcaster-v18/zec-threads docTags: createdAt: 2024-12-26T20:01:49.201Z --- The Threads screen enables the configuration of the maximal number of concurrent CPU threads allowed for each component/service. Enter -1 to limit the threads according to the number of cores. ![](https://api.archbee.com/api/optimize/yloo8L9Y5DmjuuW_iCtAX-9GLgY4hZ8oKV8qq5PUnQ2-20250406-130735.png) | **Parameter** | **Description** | | ------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Input | Maximal number of threads for all input streams. | | Output | Maximal number of threads for all output streams. | | Read | Maximal number of threads to handle Zixi Push inputs. It is recommended to adjust this value to have 1 read core per 500Mbps of push input traffic. | | 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 Curl | | HTTP In | Maximal number of threads for TS over HTTP input stream | | Push Output Receive | Maximal number of threads used for Zixi Push output connections. | | HTTP | Maximal number of threads for the HTTP server. | | Analyzer | Maximal number of threads for the analyzer component. | | Adaptive | Maximal number of threads used to segment adaptive groups. | | Various Inputs | Maximal number of threads used for all other types of inputs/outputs (e.g., HLS input, TS, TCP input, SRT inputs, ASI inputs, SRT outputs, file over http input....). |