> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wandb.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Does logging block my training?

"Is the logging function lazy? I don't want to depend on the network to send results to your servers while executing local operations."

The `wandb.log` function writes a line to a local file and doesn't block on network calls. When you call `wandb.init`, a new process starts on the same machine. This process listens for filesystem changes and communicates with the web service asynchronously, so local operations continue uninterrupted.

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<Badge stroke shape="pill" color="orange" size="md">[Experiments](/support/models/tags/experiments)</Badge><Badge stroke shape="pill" color="orange" size="md">[Logs](/support/models/tags/logs)</Badge>