Andy Wingo
dd3953ef1a
Factor trace deque out to shared-worklist.h
...
Also increase alignment to account for cache line prefetcher.
2024-07-08 10:42:58 +02:00
Andy Wingo
b4bf949df6
Add Guix manifest.scm
2024-07-03 10:38:55 +02:00
Andy Wingo
5ba0aec869
Remove unused function
2023-12-10 22:08:05 +01:00
Andy Wingo
1267f77de3
Basic stats records latency readings in a histogram, prints p95
2023-12-10 21:24:03 +01:00
Andy Wingo
4b51376447
Add mechanism to compose event listeners
2023-12-06 21:48:39 +01:00
Andy Wingo
3ce75b2bad
Fix bug in which we could forget to mark stopping mutators
...
Separately track total mutator count, paused mutators, and inactive
mutators. Paused mutators need to mark their roots before stopping. We
had a bug whereby a paused mutator would not wake up before the next
collection, which resulted in that mutator's roots not being marked.
Fix by resetting paused mutator count to 0 after collection, requiring
those mutators to sync up again.
2023-11-10 15:09:10 +01:00
Andy Wingo
adaffab3da
Fix a case where we might miss some sweeping
...
Unlike next_hole, next_hole_in_block doesn't finish_hole, so it doesn't
clear metadata bits. Fix to always finish_hole when
finish_sweeping_in_block.
2023-11-10 15:07:45 +01:00
Andy Wingo
40be1a03cb
Add debug-mode heap verification to Whippet
2023-11-10 15:07:31 +01:00
Andy Wingo
361d880277
optdebug build uses -O2 instead of -Og
2023-11-06 22:12:34 +01:00
Andy Wingo
5ad83e49e1
Fix the debug fix
2023-11-06 22:06:51 +01:00
Andy Wingo
c4396a4214
Remove a release-mode debugging printout in whippet
2023-11-05 10:27:09 +01:00
Andy Wingo
3a1a5e0368
Fix linking against static libgc.a
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Thanks to Thorsten Ball. Fixes #1 , #2 .
2023-10-25 11:33:24 +02:00
Andy Wingo
3d2a12c684
Rework parallel tracing state machine
...
Instead of sending a message to each worker, we pthread_cond_broadcast
at the start. Instead of having N worker threads, we have N-1 threads
and the main thread also does work. Instead of termination being
detected by the worker threads, let the main thread detect it. Avoid
parallelism if the mark stack is small enough, which can be the case for
ephemeron chains. Let aux threads exit when they have no work instead
of spinning: sharing will start them up again.
2023-10-23 11:26:33 +02:00
Andy Wingo
9cc12916a9
parallel marker: speed up sharing from local to published queue
2023-10-23 11:17:28 +02:00
Andy Wingo
2cab526963
Fix gc_basic_stats_finish
2023-10-20 14:14:29 +02:00
Andy Wingo
9176aa650f
Fix BDW ephemeron implementation
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* src/gc-ephemeron.c: Use key null-ness as dead ephemeron indicator;
works better with BDW-GC's disappearing link.
* src/bdw.c (gc_heap_ephemeron_trace_epoch): Fix to actually define the
epoch. Whoops!
2023-10-20 11:44:38 +02:00
Andy Wingo
cfc8c8a9b8
Allow embedder to request a major GC
2023-10-18 16:34:20 +02:00
Andy Wingo
0c7bdacc51
Revert "Allow embedder to request a major GC"
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This reverts commit f39e6ee69f0aa2e14227a019a5332ba129418977.
2023-10-18 15:13:41 +02:00
Andy Wingo
514dcc702e
Allow embedder to request a major GC
2023-10-18 15:13:41 +02:00
Andy Wingo
8aa2036331
Fix optdebug warnings
2023-10-18 15:13:41 +02:00
Andy Wingo
9ce8ee2921
Fix unused API, outdated assertion
2023-10-17 21:45:06 +02:00
Andy Wingo
a6e34c3594
Don't abort semi if parallelism > 1
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Re-interpret parallelism option as a maximum.
2023-10-16 21:36:27 +02:00
Andy Wingo
44a4e1c131
Add manual links
2023-10-16 12:45:13 +02:00
Andy Wingo
4d3e8c30d7
Update manual
2023-10-16 12:43:09 +02:00
Andy Wingo
5130380ae5
Rework stats collection to use listener interface
2023-10-16 12:13:08 +02:00
Andy Wingo
c7499740c9
Fix GCC detection
...
Doh
2023-10-07 23:10:33 +02:00
Andy Wingo
3c63de9b9d
bdw: Turn off all_interior_pointers
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Quoth gc_inline.h, which makes freelists:
/* Note that for these routines, it is the clients responsibility to */
/* add the extra byte at the end to deal with one-past-the-end pointers.*/
/* In the standard collector configuration, the collector assumes that */
/* such a byte has been added, and hence does not trace the last word */
/* in the resulting object. */
/* This is not an issue if the collector is compiled with */
/* DONT_ADD_BYTE_AT_END, or if GC_all_interior_pointers is not set. */
2023-10-07 23:09:10 +02:00
Andy Wingo
9936d98f70
Rework heap marking
2023-10-02 22:48:59 +02:00
Andy Wingo
d56356fec7
Add gc_safepoint_mechanism gc attr
2023-10-02 22:47:35 +02:00
Andy Wingo
41591d8722
bdw: Ensure heap and mutators are live
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Before, we were relying on the heap and mutators being reachable from
roots. This is no longer the case.
2023-09-30 21:58:46 +02:00
Andy Wingo
4d1358219b
Fix amazing error in bdw.c
2023-09-22 15:19:55 +02:00
Andy Wingo
120cd91b02
Use -flto=auto to do LTO in parallel
2023-09-22 14:44:21 +02:00
Andy Wingo
296e5e8458
BDW collector marks mutator/heap roots
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Needed if a mutator has off-heap (mmap) storage.
2023-09-21 10:08:23 +02:00
Andy Wingo
dc013cfb58
Change gc_allocate_ephemeron to return struct gc_ephemeron
2023-09-11 11:48:32 +02:00
Andy Wingo
db36c48efd
Update extern space API to allow for evacuation
2023-08-16 11:08:12 +02:00
Andy Wingo
fbe49598f5
Add "extern space"
...
This is mostly for static data.
2023-08-15 11:38:11 +02:00
Andy Wingo
da5a4633df
embed.mk: silent by default, bis
2023-08-12 10:26:12 +02:00
Andy Wingo
3f92f36947
embed.mk: silent by default
2023-08-12 10:23:29 +02:00
Andy Wingo
a3019c961a
embed.mk fix
2023-08-11 23:17:59 +02:00
Andy Wingo
9c1a7649b4
Update embed.mk
2023-08-10 21:49:55 +02:00
Andy Wingo
e4191f44c6
First stab at an embedder's makefile snippet
2023-08-09 22:16:03 +02:00
Andy Wingo
19f66fab08
Bin in bin, obj in obj; prettify makefile
2023-08-09 21:42:57 +02:00
Andy Wingo
8f93e23a5f
DRY for whippet variant cflags
2023-08-09 21:24:41 +02:00
Andy Wingo
f9330f789c
Attempt to do more DRY with whippet variants
2023-08-08 14:56:30 +02:00
Andy Wingo
5fdfd1175e
Use foreach and eval to generate benchmark x collector rules
2023-08-08 14:39:31 +02:00
Andy Wingo
498d0537f3
Simplify makefile
2023-08-07 11:02:57 +02:00
Andy Wingo
1c76cdcf07
Put deps in subdir
2023-08-07 10:55:30 +02:00
Andy Wingo
07d7df1952
Update benchmark target names
2023-08-07 09:28:45 +02:00
Andy Wingo
2e8a0b3874
Add automatic dependency tracking
2023-08-06 22:20:53 +02:00
Andy Wingo
e6de2fd633
Reorganize source tree and document
2023-08-06 12:04:33 +02:00
