Andy Wingo
b517464d7f
copy-space: refactor to copy_space_can_allocate
2025-01-24 16:11:11 +01:00
Andy Wingo
ba65e32b00
pcc / copy-space: Allow allocations to fail
...
This fixes an issue in which minor collection of a nursery full of live
data can fail because of fragmentation, whereas really it should just
fall back to promotion.
2025-01-13 17:22:43 +01:00
Andy Wingo
5fdb14cc5e
Remove "ABORTED" atomic forwarding state
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It was not distinguishable from "NOT_FORWARDED".
2025-01-13 16:44:12 +01:00
Andy Wingo
b37a7f3862
copy-space: Fix bug computing field logging byte location
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Also re-enable survivors in generational-pcc :)
2025-01-13 09:12:34 +01:00
Andy Wingo
4ab72e92b0
gpcc: Don't mix survivors and new objects in same block
2025-01-10 16:40:19 +01:00
Andy Wingo
0b8630145a
Copy space clears log bits when obtaining fresh blocks
2025-01-10 16:05:34 +01:00
Andy Wingo
e65c81518d
Fix copy space compilation in debug mode
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Also add copy_space_should_promote
2025-01-10 16:02:37 +01:00
Andy Wingo
095d2ff953
Copy space maintains block flag indicating which are survivors
2025-01-06 16:59:54 +01:00
Andy Wingo
4f8c7bef61
Refactor copy_space_forward to take src and dst spaces
2025-01-06 16:59:54 +01:00
Andy Wingo
b33efb2759
Copy space can reserve some blocks for field-logging bits
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Useful for an oldgen
2025-01-06 16:59:54 +01:00
Andy Wingo
a74a2c129c
Copy space has flags, can indicate that space is aligned
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This will be useful for copy-space nurseries.
2025-01-06 16:59:54 +01:00
Andy Wingo
922c13a183
Move mmap / munmap / madvise to gc-platform
2025-01-06 16:59:54 +01:00
Andy Wingo
3955d2ad96
Factor out locking utils to separate header
2024-09-30 20:52:45 +02:00
Andy Wingo
691c777e7b
Fix ABA problem in the copy space
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Same concerns as the previous fix to the nofl space.
2024-09-30 12:29:35 +02:00
Andy Wingo
7984f60eae
MMC and PCC defer actual page-out operations to background thread
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Should avoid excessive VM traffic when allocating large objects, or when
the adaptive heap sizer is on and we see frequent expansions and
resizes.
2024-09-16 10:00:01 +02:00
Andy Wingo
2818958c59
First version of adaptive heap sizing for pcc and mcc
2024-09-16 09:59:55 +02:00
Andy Wingo
1ff082705e
Remove scc
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PCC with GC_PARALLEL=0 is exactly equivalent to SCC. Also now that PCC
will dynamically avoid atomic forwarding if parallelism is disabled at
run-time, there is no need to keep SCC around.
2024-09-10 11:10:47 +02:00
Andy Wingo
6545b34073
Reorder events in event listener; refactors to mmc and pcc
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In GC, request mutators to stop before doing anything else; changes the
order of the event listener interface. Also, refactor mmc to look more
like pcc.
2024-09-10 10:55:38 +02:00
Andy Wingo
1a7d08baac
Add separate extents header
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Will be useful to let slab heaps grow.
2024-08-30 16:53:20 +02:00
Andy Wingo
e40b224faf
Attempt to dynamically choose whether to atomically forward
2024-08-05 15:03:24 +02:00
Andy Wingo
37e57f8c8d
Add serial copying collector
2024-08-05 14:41:04 +02:00
Andy Wingo
d3383ad911
Bulk-zero copy-space blocks
2024-08-05 11:48:25 +02:00
Andy Wingo
4c6889b751
Factor copy space out of pcc
2024-08-05 11:40:58 +02:00
