Short-lived double write buffer: torn-page protection without full-page writes - #3

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vbp1 wants to merge 52 commits into

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feat/short-lived-dwb

Commits on Jul 10, 2026

Add short-lived double write buffer skeleton (Stage 1)
vbp1
committed
5712ea2

Commits on Jul 24, 2026

Harden the DWB skeleton after review (Stage 1 follow-up)
vbp1
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8d75a77
Fix ABA hijack of a reopened open batch in DWBOpenNewBatch
vbp1
committed
35828d8
Remove unused DWBCloseBatchFiles
vbp1
committed
1d3843a
Integrate the DWB into FlushBuffer and add real retirement (Stage 2)
vbp1
committed
21da0b0
Fix fsync error-path accounting and close review gaps (Stage 2 follow-up)
vbp1
committed
9fe2303
Fix exit-callback ordering and error-proof the repair path (Stage 2 follow-up)
vbp1
committed
ad7acfc
Simplify after the Stage 2 review round
vbp1
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d813a0f
Integrate checkpoint, hot standby and base backups (Stage 3)
vbp1
committed
40611dc

Commits on Jul 25, 2026

Commits on Jul 26, 2026

Commits on Jul 29, 2026

Apply pgindent, perltidy and perlcritic to the branch
vbp1
committed
a95fa35

Commits on Aug 1, 2026

Commits on Aug 2, 2026

Commits on Aug 3, 2026

Scale background LRU cleaning with a cleaner worker pool (Stage 5)
vbp1
committed
2369212
Make the bgwriter a pure scanner while the cleaner pool is active (Stage 5)
vbp1
committed
418afd0
Route autovacuum workers through the DWB background class (Stage 5)
vbp1
committed
a2303c2
Tolerate pg_waldump's start-LSN skip notice in the promotion test
vbp1
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395717d
Raise NUM_XLOGINSERT_LOCKS to 32
vbp1
committed
eae0a59

Commits on Aug 4, 2026

Add benchmark charts for the PR discussion
vbp1
committed
eacd041
Make the checkpointer yield to a loaded cleaner pool (Stage 5)
vbp1
committed
e3a31c1
Refresh the time-series benchmark charts
vbp1
committed
dda57a9

Commits on Aug 5, 2026

Commits on Aug 6, 2026

Add the two-host socket-grid charts

vbp1
and
claude
committed
a870b4b
Pace the double write buffer's kernel writeback hints

vbp1
and
claude
committed
6793a01
Stop waking a warm worker for every block replay publishes
vbp1
committed
8e00a12

Commits on Aug 7, 2026

Commits on Aug 8, 2026

Register the double write buffer's exit backstop once per process
vbp1
committed
f7fa657
Declare the warm pool's hooks where smgr.c calls them
vbp1
committed
8b97260

Commits on Aug 9, 2026

Align the one page buffer this test hands to smgr
vbp1
committed
9daebc6