2d8d5c74b5
Details
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New year (2024->2025), typos in comments
2025-01-16 11:51:16 -03:00
002beeebe7
New way to keep hints for table length
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Instead of using 'alimit' for keeping the size of the array and at
the same time being a hint for '#t', a table now keeps these two
values separate. The Table structure has a field 'asize' with the
size of the array, while the length hint is kept in the array itself.
That way, tables with no array part waste no space with that field.
Moreover, the space for the hint may have zero cost for small arrays,
if the array of tags plus the hint still fits in a single word.
2024-11-29 17:26:20 -03:00
a4762b6ffe
'objsize' returns 'l_mem'
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Sums of size_t may not fit in a size_t.
2024-11-15 12:04:53 -03:00
5ffcd458f0
Some changes in default GC parameters
2024-10-23 17:15:06 -03:00
9b01da97e3
Small bug in 'luaE_luaE_statesize'
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Plus, function was renamed to 'luaE_threadsize'.
2024-10-21 15:30:35 -03:00
258355734d
Better support in 'ltests' for tracing the GC
2024-10-21 15:18:20 -03:00
d0815046d0
Some adjustments in transition minor->major
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Plus extra comments and other details.
2024-10-18 17:10:20 -03:00
3d54b42d59
'objsize' broke in smaller pieces
2024-09-30 14:01:42 -03:00
ddfa1fbccf
GC back to controling pace counting bytes
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Memory is the resource we want to save. Still to be reviewed again.
2024-09-19 19:02:14 -03:00
a04e0ffdb9
Rename of fields in global state that control GC
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All fields in the global state that control the pace of the garbage
collector prefixed with 'GC'.
2024-09-06 14:38:39 -03:00
0acd55898d
Added gcc option '-Wconversion'
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No warnings for standard numerical types. Still pending alternative
numerical types.
2024-07-27 13:32:59 -03:00
262dc5729a
Details
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Corrections in comments and manual. Added note in the manual about
local variables in the REPL.
2024-05-08 17:50:10 -03:00
86a8e74824
Details
2024-03-28 17:11:33 -03:00
ba71060381
Removed "bulk operations"
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Negligible performance gains don't justify extra complexity.
2024-03-15 11:23:35 -03:00
3823fc6c81
Added "bulk operations" to arrays
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A few operations on arrays can be performed "in bulk", treating all
tags of a cell as a simple (or a few) word(s).
2024-03-15 11:01:34 -03:00
8eb0abc9db
Removed uses of LUA_NUMTAGS
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That constant was already deprecated (see commit 6aabf4b15e
2024-01-13 18:10:50 -03:00
7827c40c49
A few more tweaks in the garbage collector
2024-01-10 14:45:58 -03:00
e2cc179454
New option "setparms" for 'collectgarbage'
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The generational mode also uses the parameters for the incremental
mode in its major collections, so it should be easy to change those
parameters without having to change the GC mode.
2023-12-22 14:48:07 -03:00
ad0ea7813b
GC parameters encoded as floating-point bytes
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This encoding brings more precision and a larger range for these
parameters.
2023-12-20 16:25:20 -03:00
666e95a66d
Option 0 for step multiplier makes GC non-incremental
2023-12-20 11:06:27 -03:00
ad73b33224
Check minor->major made at the end of a minor cycle
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It does not make sense to wait for another cycle to decide when much of
the information about creation of old objects is already available.
2023-12-07 15:45:41 -03:00
925fe8a0f2
First criteria for shifts minor<->major
2023-12-07 15:45:11 -03:00
789e7acdea
Major collections done incrementally
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Major collections do not need to "stop the world". Still pending:
criteria for shifts minor-major, shifts generational-incremental.
2023-12-06 10:49:56 -03:00
74b4013538
Removed macro 'changeage'
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It is simpler to use always 'setage'. The saving from 'changeage'
is too irrelevant.
2023-12-01 16:42:01 -03:00
63d68bd657
Comments detailing the ages for generational GC
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Plus other comments and small details.
2023-11-29 16:22:09 -03:00
024f9064f1
External strings
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Strings can use external buffers to store their contents.
2023-11-09 17:05:42 -03:00
7f4906f565
Towards external strings
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Long strings have a pointer to string contents.
2023-11-08 13:24:38 -03:00
37c215b43f
Merge branch 'newarray' into nextversion
2023-11-07 17:26:15 -03:00
fa075b7953
Merge branch 'master' into newarray
2023-11-03 15:39:14 -03:00
08a077d673
Full implementation of new representation for arrays
2023-11-03 15:26:13 -03:00
43c8e5bded
Full abstraction for representation of array values
2023-10-30 14:25:59 -03:00
c815c2f0eb
Merge branch 'master' into nextversion
2023-08-23 15:14:03 -03:00
9b4f39ab14
More disciplined use of 'getstr' and 'tsslen'
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We may want to add other string variants in the future; this change
documents better where the code may need to handle those variants.
2023-08-17 15:59:28 -03:00
6b51133a98
Thread stacks resized in the atomic phase
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Although stack resize can be a little expensive, it seems unusual to
have too many threads needing resize during one GC cycle. On the other
hand, the change allows full collections to skip the propagate phase,
going straight from a pause to the atomic phase.
2023-07-13 14:55:46 -03:00
9be74ccc21
Several functions turned 'static'
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Several functions that were already being used only inside their
own file have been declared as 'static'.
2023-05-22 14:47:54 -03:00
8dea54877a
Do not avoid major collections when GCdebt is zero
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'collectgarbage("step")' (without an argument) does not have any
special meaning, it means "do a step with some default size".
2022-12-29 15:41:07 -03:00
5d8b5b9290
Changed signal of GC debt
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Positive debts seems more natural then negative ones.
2022-12-13 15:45:57 -03:00
40565b4a08
Revamp of GC parameters
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More uniformity when handling GC parameters + avoid divisions by 100
when applying them.
2022-12-13 11:55:14 -03:00
ff106c028c
Merge branch 'master' into nextversion
2022-12-12 14:08:55 -03:00
fa2f294dd1
Reduce calls to 'luaC_step' when GC is stopped
2022-12-09 16:35:19 -03:00
0270c204c2
Simplification in handling of GC debt
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Each incremental step has always the same size (stepsize), and the
debt for next step also is always the same.
2022-12-06 12:02:34 -03:00
d324a0ccf9
Simpler control for major collections
2022-11-29 10:37:08 -03:00
152b51955a
Removed GC checks from function calls
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Function calls do not create new objects. (It may use memory with
stack reallocation, but now that is irrelevant to the GC.)
2022-11-24 10:20:15 -03:00
ec61be9a7e
'l_mem' renamed to 'l_obj' to count objects
2022-11-23 17:29:03 -03:00
f356d5acdd
First version of GC counting objects for control
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Still needs to review generational mode.
2022-11-23 17:17:20 -03:00
76953316d1
Added a counter of the total number of existing objects
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It may simplify the control of the garbage collector.
2022-11-03 16:37:13 -03:00
9ede317c70
Threads are created like other objects
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Using a version of 'luaC_newobj' that allows offsets (extra space
before the object itself).
2022-11-01 17:14:01 -03:00
413a393e62
Stack indices changed to union's
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That will allow to change pointers to offsets while reallocating
the stack.
2022-10-29 12:06:37 -03:00
a1f77a234a
Bug: set correct pause when (re)entering gen. collection.
2022-08-23 16:06:23 -03:00
597a53bbc6
Bug: finalizer calling exit can corrupt finalization order
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'os.exit' can call lua_close again, separating new finalizers
created after all previous finalizers were already separated.
2021-12-22 09:00:52 -03:00
Roberto Ierusalimschy