apt/apt-pkg/depcache.cc, branch 3.3.0

Fix Phased-Update-Percentage probability mistake

2026-04-07T09:34:15Z

Previously a package with Phased-Update-Percentage: n would be updated with probability (n + 1)/101 instead of n/100. For example, a package with Phased-Update-Percentage: 0 could still be updated even though it shouldn’t, and a package with Phased-Update-Percentage: 1 would be installed almost twice as much as it should be. Correct the erroneous math. Note that libstdc++ implements std::uniform_int_distribution in such a way that for a given seed, changing dist(0, 100) to dist(0, 99) has the effect of decreasing each sample by 0 or 1; therefore, this patch will not randomly trigger extra phased updates that had previously been excluded. Fixes: c5bc86d45e003905ef411146e66b414d26fb1ff8 Signed-off-by: Anders Kaseorg

Introduce JSONL performance counter logging

2026-02-10T19:59:03Z

Introduce a scoped object that starts measuring performance counters and then dumps them into a JSONL file for later analysis. Add performance contexts for APT::Solver and pkgDepCache::Init() as starting points.

Revert "depcache: Allow changing multi-arch versions for removed siblings"

2025-10-26T08:31:20Z

This reverts commit 74636b64a7ee56637a3ce4ddc1d060ca9f8b77e1. Adjust the test case accordingly, as it is no longer possible to install libgcc-s1:s390x. We need to sort this out in the ToDepCache translation layer at a later time. Sadly the depcache rejects valid solutions like this; solving this isn't trivial. Technically we need to split up the FromUser and auto-bit handling to solve this, but even then, MarkDelete() with FromUser=0 moves the auto-bit on metapackages; this doesn't happen when doing FromUser=1, so we can't always do FromUser=1. Fixes: a3fca052ca21ad222ac7f2fdd7f3fe84b44beb60

depcache: Allow changing multi-arch versions for removed siblings

2025-10-25T20:16:54Z

Do not prevent us from changing the version of a foreign package because a sibling that is being removed has a different candidate.

depcache: Add a new UpgradeCount() member

2025-03-08T23:12:27Z

Introduce pkgDepCache::Transaction for transactional depcache updates

2025-03-08T23:12:27Z

refactor: Deduplicate and Move SectionInSubTree to Configuration

2025-02-18T09:56:45Z

Deduplicate the copies in a central one, mark it unavailable to external users.

solver3: Defer 3.0 'deep' autoremoval to 3.1, fix autoremove

2025-02-14T18:08:45Z

Restore the depcache's MarkRequired logic for 3.0 solver; and change the MarkInstall() call to pass a more correct value for FromUser, to not override an existing automatic status.

Measure BootSize as integer

2025-02-03T12:40:37Z

I don't know why I used a double here this is awkward.

Correctly calculate kernel size in /boot

2025-02-03T12:40:37Z

Change the code to get the size from the existing vmlinuz, rather than using the package size, which only worked in Ubuntu, and possibly not on all kernel packages either. Refactor the code a bit to avoid the nested if as well, and use off_t to measure and sum the sizes before switching to floating point. Closes: #1085184