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Benchmarks: Patchwork with this PR against main

f7a4344 against main at ccb32c6, Patchwork as it ships (patchwork mode), measured one after the other on the same runner (run). Lower is better throughout. A row is in the table when every run of the PR came out on the same side of every run of main, with the medians more than 20% apart; every benchmark is below it.

Nothing changed by more than the runs vary.

every benchmark: the median of 3 runs of main and 3 runs of the PR, their range in brackets

benchmark	main	PR	change
boot → repo, first tab (1 tabs)	281 ms (265–283)	261 ms (257–281)	−7%
boot → server connected, first tab (1 tabs)	658 ms (639–658)	640 ms (639–656)	−3%
renderer memory, all tabs + workers (1 tabs)	402 MB (397–411)	401 MB (400–411)	−0%
renderer processes (1 tabs)	3	3
boot → repo, first tab (3 tabs)	287 ms (277–294)	285 ms (271–300)	−1%
boot → repo, last tab (3 tabs)	204 ms (195–206)	202 ms (200–209)	−1%
boot → server connected, first tab (3 tabs)	746 ms (731–888)	755 ms (705–778)	+1%
renderer memory, all tabs + workers (3 tabs)	739 MB (734–753)	750 MB (728–751)	+1%
renderer processes (3 tabs)	5	5
boot → repo, first tab (10 tabs)	257 ms (243–274)	267 ms (256–273)	+4%
boot → repo, last tab (10 tabs)	201 ms (199–203)	191 ms (181–211)	−5%
boot → server connected, first tab (10 tabs)	841 ms (736–876)	778 ms (711–832)	−7%
renderer memory, all tabs + workers (10 tabs)	1932 MB (1858–1936)	1876 MB (1874–1916)	−3%
renderer processes (10 tabs)	12	12
sync still works after the first tab closes	ok	ok
edit → seen + confirmed, after first tab closed	174 ms (172–174)	173 ms (169–174)	−1%
server link seen down while offline	FAIL	FAIL
…and the server did not see the offline edits	FAIL	FAIL
tabs converged while offline, over a local channel	ok	ok
offline edits in two tabs both survive reconnect	ok	ok
reconnect → tabs converged (only where they hadn't already)	–	–
…and a fresh tab sees both	ok	ok
boot → doc open, tab 1	811 ms (804–818)	807 ms (799–816)	−0%
boot → doc open, tab 2	309 ms (300–310)	306 ms (301–314)	−1%
boot → doc open, tab 10	304 ms (293–307)	305 ms (303–306)	+0%
open 40 tabs, wall clock	9152 ms (9146–9694)	9438 ms (9392–9447)	+3%
boot → repo, last of 40 tabs	71 ms (68–76)	66 ms (64–81)	−8%
boot → linked, last of 40 tabs	–	–
boot → server connected, last of 40 tabs	187 ms (180–198)	196 ms (185–198)	+5%
renderer memory, 40 tabs	7246 MB (7240–7290)	7260 MB (7201–7276)	+0%
renderer processes, 40 tabs	42	42
39 tabs find the doc: median	792 ms (764–808)	846 ms (841–853)	+7%
39 tabs find the doc: slowest	968 ms (894–969)	955 ms (949–966)	−1%
…all 39 found it	ok	ok
…finds that needed a retry (of 39)	0	0
edit → seen in 39 tabs: median tab	39 ms (35–41)	37 ms (33–38)	−6%
edit → seen in 39 tabs: slowest tab	81 ms (72–92)	73 ms (69–75)	−10%
…tabs that saw every edit (of 39)	39	39
edit → server holds our heads (40 tabs)	239 ms (229–259)	221 ms (219–240)	−7%
…server confirmed every edit (40 tabs)	ok	ok
…longest main-thread stall in tab 0 during the edits	60 ms (52–69)	52 ms (36–57)	−14%
sync rounds per sibling edit, non-editing tab	0	0
server bytes received per edit per tab	–	–
storage writes (saveBatch) per edit per tab	–	–
worker errors (40 tabs)	0	0
a fresh tab finds a closed tab's doc (no server)	ok	ok
…time to find it, from storage	45 ms (43–46)	40 ms (39–60)	−11%
…and every edit made before the close is in it	ok	ok
edits from tabs closed right after editing all survive	ok	ok
…or at least 5s later	ok	ok
find a doc another tab just created	56 ms (54–70)	61 ms (55–68)	+8%
…and every such find() succeeded within 5s	ok	ok
…and none settled unavailable first	ok	ok
edit → seen in 2 other tabs	7 ms (6–7)	6 ms (6–7)	−6%
…every edit reached every other tab within 5s	ok	ok
edit → server holds our heads	154 ms (153–155)	154 ms (153–154)	+0%
…the server confirmed every edit within 5s	ok	ok
…and a stranger gets the whole doc from the server	ok	ok
renderer memory, 1 tab	411 MB (401–414)	401 MB (401–413)	−2%
renderer memory, 10 tabs	1890 MB (1863–1893)	1886 MB (1872–1888)	−0%

[github-actions]

🪡 Patchwork

Torn down.