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50 lines
2.3 KiB
50 lines
2.3 KiB
[COPY] --- SDE-COPYRIGHT-NOTE-BEGIN --- |
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[COPY] This copyright note is auto-generated by ./scripts/Create-CopyPatch. |
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[COPY] |
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[COPY] Filename: package/.../tlsf_alloc/tlsf_alloc.desc |
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[COPY] Copyright (C) 2008 - 2009 The OpenSDE Project |
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[COPY] |
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[COPY] More information can be found in the files COPYING and README. |
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[COPY] |
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[COPY] This program is free software; you can redistribute it and/or modify |
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[COPY] it under the terms of the GNU General Public License as published by |
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[COPY] the Free Software Foundation; version 2 of the License. A copy of the |
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[COPY] GNU General Public License can be found in the file COPYING. |
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[COPY] --- SDE-COPYRIGHT-NOTE-END --- |
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[I] TLSF Memory Allocator for Real-Time |
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[T] TLSF is a general purpose dynamic memory allocator specifically designed |
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[T] to meet real-time requirements: |
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[T] |
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[T] * Bounded Response Time. The worst-case execution time (WCET) of memory |
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[T] allocation and deallocation has got to be known in advance and be |
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[T] independent of application data. TLSF has a constant cost O(1). |
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[T] * Fast. Additionally to a bounded cost, the allocator has to be efficient |
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[T] and fast enough. TLSF executes a maximum of 168 processor instructions |
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[T] in a x86 architecture. Depending on the compiler version and optimisation |
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[T] flags, it can be slightly lower or higher. |
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[T] * Efficient Memory Use. Traditionally, real-time systems run for long |
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[T] periods of time and some (embedded applications), have strong constraints |
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[T] of memory size. Fragmentation can have a significant impact on such |
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[T] systems. It can increase dramatically, and degrade the system |
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[T] performance. A way to measure this efficiency is the memory fragmentation |
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[T] incurred by the allocator. TLSF has been tested in hundreds of different |
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[T] loads (real-time tasks, general purpose applications, etc.) obtaining an |
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[T] average fragmentation lower than 15 %. The maximum fragmentation measured |
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[T] is lower than 25%. |
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[U] http://rtportal.upv.es/rtmalloc/ |
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[A] Universidad Politecnica de Valencia <[email protected]> |
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[M] Alejandro Mery <[email protected]> |
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[C] extra/development |
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[L] LGPL GPL |
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[S] Stable |
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[V] 2.4.4 |
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[P] X -?---5---9 100.000 |
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[CV-URL] http://rtportal.upv.es/rtmalloc/node/8 |
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[D] 966359237 TLSF-2.4.4.tbz2 http://rtportal.upv.es/rtdsa/files/rtportal.upv.es.rtdsa/src/tlsf/
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