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Listing images has shown increasing performance penalties with an increasing number of images. Unless `--all` is specified, Podman will filter intermediate images. Determining intermediate images has been done by finding (and comparing!) parent images which is expensive. We had to query the storage many times which turned it into a bottleneck. Instead, create a layer tree and assign one or more images to nodes that match the images' top layer. Determining the children of an image is now exponentially faster as we already know the child images from the layer graph and the images using the same top layer, which may also be considered child images based on their history. On my system with 510 images, a rootful image list drops from 6 secs down to 0.3 secs. Also use the tree to compute parent nodes, and to filter intermediate images for pruning. Signed-off-by: Valentin Rothberg <rothberg@redhat.com> |
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| .. | ||
| testdata | ||
| config.go | ||
| docker_registry_options.go | ||
| errors.go | ||
| filters.go | ||
| image.go | ||
| image_test.go | ||
| layer_tree.go | ||
| manifests.go | ||
| parts.go | ||
| parts_test.go | ||
| prune.go | ||
| pull.go | ||
| pull_test.go | ||
| search.go | ||
| signing_options.go | ||
| tree.go | ||
| utils.go | ||