1a81197819
- Re-arrange locks, so no actual memory allocation
(which is relatively slow) happens from inside
the lock. operation system will take care of locks
which might be needed there on it's own.
- Use spin lock instead of mutex, since it's just
list operations happens from inside lock, no need
in mutex here.
- Use atomic operations for memory in use and total
used blocks counters.
This makes guarded allocator almost the same speed
as non-guarded one in files from Tube project.
There're still MemHead/MemTail overhead which might
be bad for CPU cache utilization.
TODO: We need smarter 32/64bit compile-time check,
currently i'm afraid only x86 CPU family is
detecting reliably.
44 lines
1.3 KiB
Python
44 lines
1.3 KiB
Python
#!/usr/bin/env python
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#
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# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# The Original Code is Copyright (C) 2006, Blender Foundation
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# All rights reserved.
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#
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# The Original Code is: all of this file.
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#
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# Contributor(s): Nathan Letwory.
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#
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# ***** END GPL LICENSE BLOCK *****
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Import('env')
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defs = []
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sources = ['intern/mallocn.c', 'intern/mmap_win.c']
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# could make this optional
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defs.append('WITH_GUARDEDALLOC')
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if env['WITH_BF_CXX_GUARDEDALLOC']:
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sources.append('cpp/mallocn.cpp')
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defs.append('WITH_CXX_GUARDEDALLOC')
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incs = '. ../atomic'
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env.BlenderLib ('bf_intern_guardedalloc', sources, Split(incs), defs, libtype=['intern','player'], priority = [5,150] )
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