suspect-devices/circuitpython/py/gc.h, branch 0.8.4CircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=0.8.42016-11-29T22:11:32+00:00Revert "py: Add ability to manually mark blocks during collect."2016-11-29T22:11:32+00:00Scott Shawcroftscott.shawcroft@gmail.com2016-11-29T22:11:32+00:00urn:sha1:05c14dfe7809d4ac17c1e18b6ade8786212fc79f
This reverts commit 93218281588b42331d83e4aaa45ac1abe4af130b.
py: Add ability to manually mark blocks during collect.2016-11-21T22:11:49+00:00Scott Shawcroftscott.shawcroft@gmail.com2016-11-21T20:17:47+00:00urn:sha1:93218281588b42331d83e4aaa45ac1abe4af130bpy/gc: Calculate (and report) maximum contiguous free block size.2016-06-30T21:09:55+00:00Paul Sokolovskypfalcon@users.sourceforge.net2016-06-30T21:09:55+00:00urn:sha1:749cbaca7f5406e23bbf0009477c73e14fa8a9ff
Just as maximum allocated block size, it's reported in allocation units
(not bytes).
py/gc: Move away from using mp_uint_t, instead use uintptr_t and size_t.2015-11-29T14:25:04+00:00Damien Georgedamien.p.george@gmail.com2015-11-27T13:07:48+00:00urn:sha1:94fe6e523d42ecc342c1f6a9734ed2edf232ddbd
The GC works with concrete pointers and so the types should reflect this.
py: Clear finalizer flag when calling gc_free.2015-11-07T14:26:11+00:00Dave Hylandsdhylands@gmail.com2015-11-06T22:32:47+00:00urn:sha1:7f3c0d1ea8fa21df3b2078c7189f2b26fe36da59
Currently, the only place that clears the bit is in gc_collect.
So if a block with a finalizer is allocated, and subsequently
freed, and then the block is reallocated with no finalizer then
the bit remains set.
This could also be fixed by having gc_alloc clear the bit, but
I'm pretty sure that free is called way less than alloc, so doing
it in free is more efficient.
py: Improve allocation policy of qstr data.2015-07-14T21:56:32+00:00Damien Georgedamien.p.george@gmail.com2015-06-13T20:53:22+00:00urn:sha1:ade9a052365247be5ed4ce8b53c2164a576a4a05
Previous to this patch all interned strings lived in their own malloc'd
chunk. On average this wastes N/2 bytes per interned string, where N is
the number-of-bytes for a quanta of the memory allocator (16 bytes on 32
bit archs).
With this patch interned strings are concatenated into the same malloc'd
chunk when possible. Such chunks are enlarged inplace when possible,
and shrunk to fit when a new chunk is needed.
RAM savings with this patch are highly varied, but should always show an
improvement (unless only 3 or 4 strings are interned). New version
typically uses about 70% of previous memory for the qstr data, and can
lead to savings of around 10% of total memory footprint of a running
script.
Costs about 120 bytes code size on Thumb2 archs (depends on how many
calls to gc_realloc are made).
py: Put all global state together in state structures.2015-01-07T20:33:00+00:00Damien Georgedamien.p.george@gmail.com2015-01-01T23:30:53+00:00urn:sha1:b4b10fd350852e321624d74983cca286091b55a1
This patch consolidates all global variables in py/ core into one place,
in a global structure. Root pointers are all located together to make
GC tracing easier and more efficient.
py: Move to guarded includes, everywhere in py/ core.2015-01-01T20:32:09+00:00Damien Georgedamien.p.george@gmail.com2015-01-01T20:27:54+00:00urn:sha1:51dfcb4bb7613ed164952712d9a5235a7b833cde
Addresses issue #1022.
py: Make gc.enable/disable just control auto-GC; alloc is still allowed.2014-10-31T21:30:46+00:00Damien Georgedamien.p.george@gmail.com2014-10-31T21:30:46+00:00urn:sha1:109c1de015eeee385020233e2f8cc6f921149103
gc.enable/disable are now the same as CPython: they just control whether
automatic garbage collection is enabled or not. If disabled, you can
still allocate heap memory, and initiate a manual collection.
py: Improve memory usage debugging; better GC AT dumping.2014-10-24T22:12:25+00:00Damien Georgedamien.p.george@gmail.com2014-10-24T22:12:25+00:00urn:sha1:0b13f3e026c842facf65743450246b15a8c2e064
In unix port, mem_info(1) now prints pretty GC alloc table.