Pierre-Yves David <pierre-yves.david@octobus.net> [Wed, 28 Feb 2024 12:56:08 +0100] rev 51522
branchcache: add more test for the logic around obsolescence and branch heads
While working on branch-cache-v3, we noticed some ambiguity in the
filtered+obsolete hash. However this was only caught by a rebase test by
chance.
It seems important to explicitly tests these cases.
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 26 Feb 2024 15:44:44 +0100] rev 51521
branchcache-v3: use more explicit header line
The key-value approach is clearer and gives more rooms to have the format evolve
in a clear way. It also provides extension (like topic) simpler way to extend
the validation scheme.
This is just a small evolution, the V3 format is still a work in progress.
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 26 Feb 2024 14:20:36 +0100] rev 51520
branchcache-v3: introduce a v3 format
For now the format is the very same, however we will start changing it in
future changesets.
Pierre-Yves David <pierre-yves.david@octobus.net> [Tue, 27 Feb 2024 14:04:29 +0100] rev 51519
branchcache: use an explicit class for the v2 version
This prepare the introduction of an experimental v3 format version.
In the process, we move the description of the format in that new class.
Pierre-Yves David <pierre-yves.david@octobus.net> [Tue, 27 Feb 2024 15:33:21 +0100] rev 51518
branchcache: add some blank line in a test
This helps each section to stand out.
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 25 Mar 2024 02:09:15 +0100] rev 51517
phases: update the phase set as we go during retract boundary
Apparently iterating over the `changed_revs` dictionary is very expensive.
On mozilla-try-2019-02-18, a perf::unbundle call with a 10 000 changesets
bundle gives give use the following timing.
e57d4b868a3e: 4.6 seconds
ac1c75188440: 102.5 seconds
prev-changeset: 30.0 seconds
this-changeset: 4.6 seconds
So, the performance regression is gone.
Once again: thanks to marvelous Python!
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 25 Mar 2024 01:50:31 +0100] rev 51516
phases: avoid a potentially costly dictionary interation in some case
If we retract for the draft phase, there is not non-public item to be retracted
and we can skip this part. This part is was apparently super costly thanks to
Python.
On mozilla-try-2019-02-18, a perf::unbundle call with a 10 000 changesets
bundle gives give use the following timing.
e57d4b868a3e: 4.6 seconds
ac1c75188440: 102.5 seconds
this-changeset: 30.0 seconds
So we recovered about ⅔ of the regression, the next changeset will give us the
rest back.
Raphaël Gomès <rgomes@octobus.net> [Thu, 21 Mar 2024 12:26:46 +0100] rev 51515
branching: merge stable into default
Raphaël Gomès <rgomes@octobus.net> [Thu, 21 Mar 2024 12:24:42 +0100] rev 51514
Added signature for changeset 2e6fde2ed01e
Raphaël Gomès <rgomes@octobus.net> [Thu, 21 Mar 2024 12:24:36 +0100] rev 51513
Added tag 6.7.1 for changeset 2e6fde2ed01e