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Pull optimization: unpack largest layers first in pullWith - #3749
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…ocessed first Change-Id: I9c8b934f6d220134ca30dc9ace478f3d80bb8784 Signed-off-by: Amy Xu <amywxu@google.com>
Change-Id: I60ae80f216eed307cf76ede3526608f1747ad11a Signed-off-by: Amy Xu <amywxu@google.com>
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Change-Id: I04d5162c09d874c8317babd1c86fb2bc2b0f734a Signed-off-by: Amy Xu <amywxu@google.com>
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Change-Id: I7fcf3c044be39217f5b027efae52094b072b6986 Signed-off-by: Amy Xu <amywxu@google.com>
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Part of the optimizations outlined in Investigating Substrate Image Pull Speed
Currently, images with skewed layer sizes and a total number of layers > layerPullConcurrency (=4) may have larger layers queue behind smaller ones when unpacking. This PR uses Longest Processing Time (LPT) scheduling based on the size of the image layers.
AI use: AI-assisted, I reviewed and tested it (
go test -race -count=3 -shuffle=on ./internal/imagecacheandhack/run-e2e.shagainst dev cluster).Change-Id: I9c8b934f6d220134ca30dc9ace478f3d80bb8784