# Checking compressed size of Docker image

DevFeed: [Checking compressed size of Docker image](<https://devfeed.tech/articles/checking-compressed-size-of-docker-image-27685.md>)

Original publisher: [Read original article](<https://gagor.pro/2024/01/checking-compressed-size-of-docker-image/>)

Author: Tom

Published: 2024-01-24T00:00:00Z

Content type: tutorial

Language: en

Sources: [Tomasz Gągor](<https://devfeed.tech/sources/tomasz-gagor.md>)

Topics: [Docker Image](<https://devfeed.tech/topics/docker-image.md>), [Docker](<https://devfeed.tech/topics/docker.md>), [Containers](<https://devfeed.tech/topics/containers.md>), [Bash](<https://devfeed.tech/topics/bash.md>), [Jenkins](<https://devfeed.tech/topics/jenkins.md>)

Tags: [bash](<https://devfeed.tech/tags/bash.md>), [bash-function-for-docker](<https://devfeed.tech/tags/bash-function-for-docker.md>), [compressed-docker-image](<https://devfeed.tech/tags/compressed-docker-image.md>), [containers](<https://devfeed.tech/tags/containers.md>), [docker](<https://devfeed.tech/tags/docker.md>), [docker-image](<https://devfeed.tech/tags/docker-image.md>), [docker-image-metrics](<https://devfeed.tech/tags/docker-image-metrics.md>), [docker-image-size](<https://devfeed.tech/tags/docker-image-size.md>), [docker-optimization](<https://devfeed.tech/tags/docker-optimization.md>), [docker-performance](<https://devfeed.tech/tags/docker-performance.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [linux](<https://devfeed.tech/tags/linux.md>), [measurements](<https://devfeed.tech/tags/measurements.md>)

## AI overview

The article explains how to use Docker image compressed size as a development metric for estimating download-time impact, while comparing it with uncompressed size to approximate extraction and startup-time impact. It presents a Bash function to simplify the measurements.

## Source excerpt

Learn how to check the compressed size of Docker images to optimize download and startup times, using a simple bash function for accurate measurements.