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Re: Performance regression on NFS with new manifest version
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From: |
Ricardo Wurmus |
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Subject: |
Re: Performance regression on NFS with new manifest version |
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Date: |
Wed, 09 Aug 2017 22:39:50 +0200 |
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User-agent: |
mu4e 0.9.18; emacs 25.2.1 |
Hi Roel,
> Looking into the manifests ($GENERATION_15/manifest and
> $GENERATION_16/manifest), I noticed that generation 15 uses manifest
> version 2, and generation 16 uses manifest version 3.
>
> What has changed, so that it takes a lot longer to run the same command
> as before? (this is probably disk-related, because that is a known
> cause for trouble on network-mounted stores..)
Commit 55b4715fd4c03e46501f123c5c9bc6072edf12a4 bumped the manifest
version to 3. The goal was to represent propagated inputs as manifest
entries so that we can anticipate conflicts from propagated inputs and
refuse to build a profile when there would be conflicts.
--
Ricardo
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