# Docker performance

Published articles for Docker performance.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## 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.

## How old are Official Docker images?

DevFeed: [How old are Official Docker images?](<https://devfeed.tech/articles/how-old-are-official-docker-images-27660.md>)

Original publisher: [Read original article](<https://gagor.pro/2021/01/how-old-are-official-docker-images/>)

Author: Tom

Published: 2021-01-28T00:00:00Z

Content type: article

Language: en

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

Topics: [docker images](<https://devfeed.tech/topics/docker-images.md>), [Docker](<https://devfeed.tech/topics/docker.md>), [Dockerfile](<https://devfeed.tech/topics/dockerfile.md>), [Security](<https://devfeed.tech/topics/security.md>), [DevOps](<https://devfeed.tech/topics/devops.md>)

Tags: [base-image-maintenance](<https://devfeed.tech/tags/base-image-maintenance.md>), [base-images](<https://devfeed.tech/tags/base-images.md>), [devops](<https://devfeed.tech/tags/devops.md>), [docker](<https://devfeed.tech/tags/docker.md>), [docker-image-age](<https://devfeed.tech/tags/docker-image-age.md>), [docker-image-updates](<https://devfeed.tech/tags/docker-image-updates.md>), [docker-performance](<https://devfeed.tech/tags/docker-performance.md>), [docker-security](<https://devfeed.tech/tags/docker-security.md>), [images](<https://devfeed.tech/tags/images.md>), [official-docker-images](<https://devfeed.tech/tags/official-docker-images.md>), [security](<https://devfeed.tech/tags/security.md>)

### AI overview

The article examines how old various official Docker images are and how frequently they are updated. It highlights the security risks of using stale CentOS base images and discusses the tradeoff that package upgrades can make images larger.

### Source excerpt

Discover the age and update frequency of various official Docker images, and learn why it's important to keep your base images up to date for security and performance.