Mercurial > hg
view tests/test-sparse-verbose-json.t @ 46254:c4b792fa109e
branchmap: avoid ancestor computations in absence of non-continous branches
The branchhead computation is one of the more heavy operations for
bigger repositories as it has to scan all changesets and potentially
involves the expensive computation of the ancestor sets. Redo the
computation to handle the common cases directly and use tighter
conditions for when the ancestor scan is necessary. Most importantly,
avoid it completely if the non-continous branches are processed in one
update as seen in the initial computation after a clone.
For the Mercurial repository, it gives a small 2-3% performance boost.
For the NetBSD test repository, it cuts the time in half.
Differential Revision: https://phab.mercurial-scm.org/D9631
author | Joerg Sonnenberger <joerg@bec.de> |
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date | Fri, 18 Dec 2020 14:45:28 +0100 |
parents | 9087f9997f42 |
children |
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test sparse with --verbose and -T json $ hg init myrepo $ cd myrepo $ cat > .hg/hgrc <<EOF > [extensions] > sparse= > strip= > EOF $ echo a > show $ echo x > hide $ hg ci -Aqm 'initial' $ echo b > show $ echo y > hide $ echo aa > show2 $ echo xx > hide2 $ hg ci -Aqm 'two' Verify basic --include and --reset $ hg up -q 0 $ hg debugsparse --include 'hide' -Tjson [ { "exclude_rules_added": 0, "files_added": 0, "files_conflicting": 0, "files_dropped": 1, "include_rules_added": 1, "profiles_added": 0 } ] $ hg debugsparse --clear-rules $ hg debugsparse --include 'hide' --verbose removing show Profiles changed: 0 Include rules changed: 1 Exclude rules changed: 0 $ hg debugsparse --reset -Tjson [ { "exclude_rules_added": 0, "files_added": 1, "files_conflicting": 0, "files_dropped": 0, "include_rules_added": -1, "profiles_added": 0 } ] $ hg debugsparse --include 'hide' $ hg debugsparse --reset --verbose getting show Profiles changed: 0 Include rules changed: -1 Exclude rules changed: 0 Verifying that problematic files still allow us to see the deltas when forcing: $ hg debugsparse --include 'show*' $ touch hide $ hg debugsparse --delete 'show*' --force -Tjson pending changes to 'hide' [ { "exclude_rules_added": 0, "files_added": 0, "files_conflicting": 1, "files_dropped": 0, "include_rules_added": -1, "profiles_added": 0 } ] $ hg debugsparse --include 'show*' --force pending changes to 'hide' $ hg debugsparse --delete 'show*' --force --verbose pending changes to 'hide' Profiles changed: 0 Include rules changed: -1 Exclude rules changed: 0