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Two things land together: the plan and contract draft P6 needs before it starts, and the
working notes that until now existed on exactly one machine.
1. P6's plan and contract draft (neither started; not one line of code)
docs/Disaggregated/P6-SPAWN-PLAN.md the package plan
docs/Disaggregated/P6-CONTRACT-DRAFT.md the contract draft (moves to
MG_Remote/CONTRACT-P6.md when c6 lands)
The three findings that mattered, all written into the documents:
a. P6 is SMALLER than its roadmap cell suggests. The transport primitives are already in
the tree and already tested: SocketDoorbell including hangup detection and the two
lost-wakeup fences (Doorbell.cpp:211-360, four cases in FdPassingTest), SCM_RIGHTS fd
passing, ShmSegment::Adopt, and the SurfaceOp / WindowKind schema already defined in
protocol.fbs. inproc uses a real second shm mapping rather than an alias, and
SessionRings.h:22-28 says that was done so today is not the first time it runs. P6 is
assembly plus a control plane plus a process, not "write a socket transport".
b. The evidence for "P6 is only a transport swap" has EXPIRED. It was bought by P5c, whose
audit found 59 direct memory accesses in a tree that already looked clean. P5e changed
the tree again. So the first package, a6, is a read-only audit that writes no code, and
every contract row that depends on it is marked PENDING a6 rather than decided in
advance.
c. P6 does not get a game running on the phone. ANativeWindow* is meaningless in the child,
and protocol.fbs:186-196's own comment says Android transfers the window out of band -
that band is P12. P6 lands pbuffer / surfaceless / offscreen, which is what HeadlessGL,
the split-equivalent lane and trace replay need, and which is exactly what P6's own exit
gate measures. A real window reaching the server is a named refusal. This gets its own
section because "P6 is done" would otherwise read as "the game runs now".
The contract adds rule G: a role may not name a process-local handle. It extends P5c's
rule E (a role may not name the other role's memory) from memory to identity - EGLDisplay /
EGLSurface / EGLContext / ANativeWindow* / fd number / pid / mapped address either cross as
a token this contract defines or they do not cross, and a descriptor crosses only through
SCM_RIGHTS, where the kernel renumbers it.
What P5e left for P6 gets its own section. The latch semantics are already designed
(ARCHITECTURE.md:504) and are copied unchanged. What is new is that after run-ahead the
client no longer waits while the peer process can DIE: the client holds records that were
published and will never be applied, and Android's freezer suspends the child without
closing anything. So slow and dead must be distinguishable WITHOUT a timeout threshold.
That is P6's only new design; everything else is carriage. It shares a predicate with E1's
outstanding re-specification (ID-122), and the two should be designed together.
Two gates carried over from P5e's lessons: G2 requires integration-spawn's test-name set to
match integration-split's name for name, because a differing set means the lane is quietly
running less; and the arm-proof gate requires every entry to record the child pid and
transport=spawn in its OWN private log - ID-124 established that this kind of false green
really happens, and a spawn lane that actually ran monolith would pass every other gate.
S2's shape must be settled before it is written, and the document says why: E1 is the
cautionary case.
2. The working notes move into the repository (docs/Disaggregated/notes/, 415 .md files)
ROADMAP / CURRENT_STAGE_PROGRESS / MEASUREMENTS cite ruling numbers, audit line numbers and
the provenance of gate figures from ~/w7/notes/, a directory that exists on one machine and
is under no version control. A record cited hundreds of times that lives only locally is not
a record, so it moves in whole, with its directory structure intact.
Only .md moves. Scripts, run logs, census and gate result JSON, patches, APKs and nm dumps
stay where they are: they are evidence DATA rather than documents - large, regenerated per
run, and mostly carrying absolute paths and device serials that mean something only on the
machine that produced them. The mapping and this split are written in
docs/Disaggregated/notes/README.md.
Two exceptions are recorded there too: P6's BRIEF has been promoted to a first-class
document and keeps no copy under notes/, so the two cannot drift apart; and recovered/ holds
material salvaged from failed workflow runs, which may duplicate the like-named phase
directories and is kept because a few of those were the only complete version at the time.
CI's citation lint takes docs/Disaggregated/*.md only (non-recursive), and notes/ is
deliberately outside it: those notes' file:line citations were written against their own
code heads, and resolving them against today's HEAD would fail wholesale - which is not an
error, it is their correct state as a historical record. To check one, use the revision it
declares (--rev).
3. Inconsistencies fixed in passing
- README.md's status line still said P5e was in progress while the stage table already said
closed.
- CURRENT_STAGE_PROGRESS's next-step item 1 still listed the exit gate as pending, though
(a) and (b) were run in the previous commit; rewritten to closed plus the one item that
actually remains (E1).
- ROADMAP's P6 row still had the pre-phase plan in three of its cells; it now carries the
package order, the scope boundary and the two new gates.
Checked with check_doc_citations.py: 125 citations across docs/Disaggregated/*.md, 0 problems.
5.5 KiB
5.5 KiB
P3a device A/B - per-thread CPU per frame (ms), best-of-3 repeat, trailing window
| device | case | backend | finish | pull p50 | P2-only (0x7f) p50 | P3a (0x1ff) p50 | d P2 | d P3a total | pull p99 | P3a p99 | pins pull/7f/P3a | mpr 7f/P3a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 35d0befa | improved-transparency-minecraft-26.3 | DirectGLES | on | 10.789 | - | 11.705 | - | +8.5% | 25.481 | 26.286 | P/P / - / P/P | - / 8 |
| 35d0befa | improved-transparency-minecraft-26.3 | DirectGLES | off | 10.810 | 11.485 | 11.697 | +6.2% | +8.2% | 25.457 | 26.322 | P/P / P/P / P/P | 0 / 8 |
| 35d0befa | improved-transparency-minecraft-26.3 | DirectVulkan | on | 10.710 | - | 11.486 | - | +7.2% | 25.046 | 26.020 | P/P / - / P/P | - / 0 |
| 35d0befa | improved-transparency-minecraft-26.3 | DirectVulkan | off | 10.675 | 11.473 | 11.459 | +7.5% | +7.3% | 25.014 | 26.035 | P/P / P/P / P/P | 0 / 0 |
| 35d0befa | minecraft-1.21.1-neoforge-create-instancing-in-world | DirectGLES | on | 942.838 | - | 951.887 | - | +1.0% | 1881.772 | 1899.830 | P/P / - / P/P | - / 1 |
| 35d0befa | minecraft-1.21.1-neoforge-create-instancing-in-world | DirectGLES | off | 944.367 | 945.239 | 949.916 | +0.1% | +0.6% | 1884.954 | 1896.098 | P/P / P/P / P/P | 0 / 1 |
| 35d0befa | minecraft-1.21.1-neoforge-create-instancing-in-world | DirectVulkan | on | 1002.282 | - | 1009.560 | - | +0.7% | 1881.965 | 1896.724 | P/P / - / P/P | - / 0 |
| 35d0befa | minecraft-1.21.1-neoforge-create-instancing-in-world | DirectVulkan | off | 1003.851 | 1019.461 | 1015.625 | +1.6% | +1.2% | 1884.710 | 1908.215 | P/P / P/P / P/P | 0 / 0 |
| 35d0befa | minecraft-1.21.4-fabric-sodium-in-world | DirectGLES | on | 1.286 | - | 1.389 | - | +8.0% | 2.382 | 2.461 | P/P / - / P/P | - / 1 |
| 35d0befa | minecraft-1.21.4-fabric-sodium-in-world | DirectGLES | off | 1.292 | 1.349 | 1.382 | +4.4% | +7.0% | 2.418 | 2.443 | P/P / P/P / P/P | 0 / 1 |
| 35d0befa | minecraft-1.21.4-fabric-sodium-in-world | DirectVulkan | on | 0.984 | - | 0.500 | - | -49.2% | 2.106 | 1.165 | P/P / - / P/P | - / 0 |
| 35d0befa | minecraft-1.21.4-fabric-sodium-in-world | DirectVulkan | off | 0.485 | 0.504 | 1.010 | +3.9% | +108.2% | 1.469 | 2.187 | P/P / P/P / P/P | 0 / 0 |
| 35d0befa | minecraft-1.21.4-rd12-odinlite-in-world | DirectGLES | on | 8.241 | - | 10.656 | - | +29.3% | 21.905 | 24.415 | P/P / - / P/P | - / 0 |
| 35d0befa | minecraft-1.21.4-rd12-odinlite-in-world | DirectGLES | off | 8.220 | 9.117 | 10.650 | +10.9% | +29.6% | 21.895 | 24.487 | P/P / P/P / P/P | 0 / 0 |
| 35d0befa | minecraft-1.21.4-rd12-odinlite-in-world | DirectVulkan | on | - | - | - | - | - | - | - | P/D / - / P/P | - / None |
| 35d0befa | minecraft-1.21.4-rd12-odinlite-in-world | DirectVulkan | off | - | - | - | - | - | - | - | P/D / P/P / P/P | None / None |
| 3B159D009VZ00000 | improved-transparency-minecraft-26.3 | DirectGLES | on | 9.625 | - | 10.698 | - | +11.1% | 25.806 | 26.407 | P/P / - / P/P | - / 8 |
| 3B159D009VZ00000 | improved-transparency-minecraft-26.3 | DirectGLES | off | 9.741 | 10.570 | 10.542 | +8.5% | +8.2% | 26.312 | 27.022 | P/P / P/P / P/P | 0 / 8 |
| 3B159D009VZ00000 | improved-transparency-minecraft-26.3 | DirectVulkan | on | 8.120 | - | 9.064 | - | +11.6% | 23.126 | 23.899 | P/P / - / P/P | - / 0 |
| 3B159D009VZ00000 | improved-transparency-minecraft-26.3 | DirectVulkan | off | 8.162 | 8.920 | 8.973 | +9.3% | +9.9% | 22.851 | 23.638 | P/P / ?/P / P/P | 0 / 0 |
| 3B159D009VZ00000 | minecraft-1.21.1-neoforge-create-instancing-in-world | DirectGLES | on | 1046.285 | - | 1048.879 | - | +0.2% | 2084.086 | 2089.778 | P/P / - / P/P | - / 1 |
| 3B159D009VZ00000 | minecraft-1.21.1-neoforge-create-instancing-in-world | DirectGLES | off | 1075.081 | 1045.102 | 1060.064 | -2.8% | -1.4% | 2142.660 | 2110.799 | P/P / P/P / P/P | 0 / 1 |
| 3B159D009VZ00000 | minecraft-1.21.1-neoforge-create-instancing-in-world | DirectVulkan | on | 760.555 | - | 776.948 | - | +2.2% | 1506.263 | 1538.494 | P/P / - / P/P | - / 0 |
| 3B159D009VZ00000 | minecraft-1.21.1-neoforge-create-instancing-in-world | DirectVulkan | off | 758.298 | 731.023 | 760.035 | -3.6% | +0.2% | 1501.555 | 1504.494 | P/P / P/P / P/P | 0 / 0 |
| 3B159D009VZ00000 | minecraft-1.21.4-fabric-sodium-in-world | DirectGLES | on | 1.732 | - | 1.839 | - | +6.2% | 3.085 | 2.966 | P/P / - / P/P | - / 1 |
| 3B159D009VZ00000 | minecraft-1.21.4-fabric-sodium-in-world | DirectGLES | off | 1.896 | 1.770 | 1.841 | -6.6% | -2.9% | 2.993 | 3.079 | P/P / P/P / P/P | 0 / 1 |
| 3B159D009VZ00000 | minecraft-1.21.4-fabric-sodium-in-world | DirectVulkan | on | 0.402 | - | 0.457 | - | +13.7% | 1.186 | 1.265 | P/P / - / P/P | - / 0 |
| 3B159D009VZ00000 | minecraft-1.21.4-fabric-sodium-in-world | DirectVulkan | off | 0.399 | 0.431 | 0.437 | +8.0% | +9.5% | 1.206 | 1.409 | P/P / P/P / P/P | 0 / 0 |
| 3B159D009VZ00000 | minecraft-1.21.4-rd12-odinlite-in-world | DirectGLES | on | 9.944 | - | 12.852 | - | +29.2% | 27.530 | 29.540 | P/P / - / P/P | - / 0 |
| 3B159D009VZ00000 | minecraft-1.21.4-rd12-odinlite-in-world | DirectGLES | off | 9.938 | 11.009 | 12.963 | +10.8% | +30.4% | 27.137 | 29.765 | P/P / P/P / P/P | 0 / 0 |
| 3B159D009VZ00000 | minecraft-1.21.4-rd12-odinlite-in-world | DirectVulkan | on | 7.718 | - | 10.226 | - | +32.5% | 24.451 | 27.359 | P/P / - / P/P | - / 0 |
| 3B159D009VZ00000 | minecraft-1.21.4-rd12-odinlite-in-world | DirectVulkan | off | 8.001 | 8.933 | 10.161 | +11.6% | +27.0% | 24.723 | 27.355 | P/P / P/P / P/P | 0 / 0 |
d P2 = push(0x7f) vs pull; d P3a total = push(0x1ff) vs pull; the P3a-only share is the difference of the two. A '-' p50 means the run produced no result (rc != 0); see the runner.log in that directory.