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[ntuple] add support for on-demand loading of page lists - #23524

Merged

jblomer merged 24 commits into

root-project:masterfrom

jblomer:ntuple-huge-file-read

Oct 20, 2026

Merged

[ntuple] add support for on-demand loading of page lists#23524
jblomer merged 24 commits into
root-project:masterfrom
jblomer:ntuple-huge-file-read

Commits on Oct 19, 2026
- [ntuple] fix mock page source in cluster unit test
  jblomer
  committed
  bcc41ab
- [ntuple] fix descriptor locking in join table's entry mapping
  jblomer
  committed
  c8984e1
- [ntuple] fix descriptor locking in merger unit test
  jblomer
  committed
  9740ae2
- [ntuple] minor fix in RClusterPool
  jblomer
  committed
  58cc690
- [ntuple] add private RPageSource::LoadPageList()
  jblomer
  committed
  e7897f5
- [ntuple] allow for manual release of RSharedDescriptorGuard
  jblomer
  committed
  bb6efb0
- [ntuple] make R[Shared|Excl]DescriptorGuard default constructible
  jblomer
  committed
  14dbd6c
- [ntuple] fix moving RSharedDescriptorGuard
  jblomer
  committed
  7b1a258
- [ntuple] make RExclDescriptorGuard move constructible
  jblomer
  committed
  52d67c4
- [ntuple] allow for manual release of RExclDescriptorGuard
  jblomer
  committed
  42c8cab
- [ntuple] add RPageSource::RAnyDescriptorGuard
  jblomer
  committed
  1a42491
- [ntuple] add private RPageSource::EnsureClusterDetails()
  jblomer
  committed
  fae152c
- [ntuple] add RPageStorage::FindClusterGroupId()
  jblomer
  committed
  be7fa92
- [ntuple] prepare for loading cluster details on demand
  jblomer
  committed
  e07be3a
- [ntuple] properly lock RPageSource::FindNextClusterId()
  jblomer
  committed
  8343ad2
- [ntuple] properly lock entry-based RPageSource::FindClusterId()
  jblomer
  committed
  958ee36
- [ntuple] properly lock element-based RPageSource::FindClusterId()
  jblomer
  committed
  903a1f2
- [ntuple] use FindClusterId() to get first cluster in merger
  jblomer
  committed
  44409a0
- [ntuple] add RPageSource::LoadAllPageLists()
  jblomer
  committed
  91ae775
- [ntuple] lock access to storage backend
  jblomer
  committed
  a7ec7c7
- [ntuple] add metadata mode read option
  jblomer
  committed
  1219fc4
- [ntuple] remove dead code in FindClusterId()
  jblomer
  committed
  86decd7
- [ntuple] descriptor guard GetRef() --> GetConstRef()
  jblomer
  committed
  8c58bd9
- [ntuple] fix I/O counters of file backend
  jblomer
  committed
  b66cf23

Commits

Commits on Oct 19, 2026