* [CLI] Restart under Rosetta with a 64 MiB gen0 GC budget
Every collection suspends the runtime through FlushProcessWriteBuffers,
which Rosetta 2 services by parking each thread in its runtime
(notify_thread_waiters). A signal that reaches a parked thread trips
Rosetta's "expected saved LR to be in translated code" assertion and
wedges the process; Demon's Souls hit it in about half of its 3-5 minute
runs while collecting almost twice a second. The gen0 budget is only read
from the environment, so the process re-executes itself once with
DOTNET_GCgen0size set (same pid). With 64 MiB, Demon's Souls collects
about once every 6 seconds, gen0 and gen1 only, 0.26 s of pauses in
110 s. A 512 MiB budget made every collection a blocking gen1/gen2 pass
of about a second. SHARPEMU_ROSETTA_GC_BUDGET=0 opts out.
* [VideoOut] Let a buffer wait ignore CPU flips the graphics queue has not reached
sceVideoOutSubmitFlip reserves its flip request, may sleep for pacing,
and only then queues the flip preparation on the graphics queue. A
command buffer submitted before it that starts with
sceAgcDcbWaitUntilSafeForRendering on the same display buffer saw the
reserved request as pending and waited for a preparation queued behind
itself: the graphics queue never advanced and every compute queue waiting
on its labels stalled with it. Demon's Souls hung this way on the boot
splash in about one run in three.
A CPU flip now counts for the wait only once the graphics queue runs its
preparation; GPU flips are ordered from their packet.
(cherry picked from commit 8915df35abad5fe8b15cc6418f1e563785d6e008)
* [Media] Expire a host movie only once its playback stops advancing
Host playback follows the guest's own Bink decode and audio clock, so on
a slow host a movie plays slower than real time. The watchdog fired at
the movie's duration plus a minute regardless, marked the file timed out
and forced EOF on the guest's reads while its decoder was still
mid-stream: Demon's Souls' 171 s attract movie froze on its last
host frame for good. The watchdog now re-arms while frames keep
advancing and expires a movie only after a minute without progress.
(cherry picked from commit daad0f097d0c6369097aeef32b55c9f2d171110a)
* [CLI] Preserve the managed entry point when restarting under Rosetta
a73e424a27