4.115
Last change
on this file since c5831a3f was
c5831a3f,
checked in by Sebastian Huber <sebastian.huber@…>, on 04/09/14 at 13:07:54
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score: Add clustered/partitioned scheduling
Clustered/partitioned scheduling helps to control the worst-case
latencies in the system. The goal is to reduce the amount of shared
state in the system and thus prevention of lock contention. Modern
multi-processor systems tend to have several layers of data and
instruction caches. With clustered/partitioned scheduling it is
possible to honour the cache topology of a system and thus avoid
expensive cache synchronization traffic.
We have clustered scheduling in case the set of processors of a system
is partitioned into non-empty pairwise-disjoint subsets. These subsets
are called clusters. Clusters with a cardinality of one are partitions.
Each cluster is owned by exactly one scheduler instance.
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Property mode set to
100644
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File size:
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1 | /* |
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2 | * Copyright (c) 2014 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * embedded brains GmbH |
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5 | * Dornierstr. 4 |
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6 | * 82178 Puchheim |
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7 | * Germany |
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8 | * <rtems@embedded-brains.de> |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.org/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #ifdef HAVE_CONFIG_H |
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16 | #include "config.h" |
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17 | #endif |
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18 | |
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19 | #include <rtems.h> |
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20 | #include <rtems/test.h> |
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21 | #include <rtems/score/smpimpl.h> |
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22 | |
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23 | #include <assert.h> |
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24 | #include <stdlib.h> |
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25 | |
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26 | const char rtems_test_name[] = "SMPFATAL 4"; |
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27 | |
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28 | static void Init(rtems_task_argument arg) |
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29 | { |
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30 | assert(0); |
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31 | } |
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32 | |
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33 | static void fatal_extension( |
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34 | rtems_fatal_source source, |
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35 | bool is_internal, |
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36 | rtems_fatal_code code |
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37 | ) |
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38 | { |
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39 | rtems_test_begink(); |
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40 | |
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41 | if ( |
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42 | source == RTEMS_FATAL_SOURCE_SMP |
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43 | && !is_internal |
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44 | && code == SMP_FATAL_BOOT_PROCESSOR_NOT_ASSIGNED_TO_SCHEDULER |
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45 | ) { |
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46 | rtems_test_endk(); |
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47 | } |
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48 | } |
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49 | |
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50 | #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER |
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51 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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52 | |
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53 | #define CONFIGURE_INITIAL_EXTENSIONS \ |
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54 | { .fatal = fatal_extension }, \ |
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55 | RTEMS_TEST_INITIAL_EXTENSION |
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56 | |
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57 | #define CONFIGURE_SMP_APPLICATION |
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58 | |
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59 | #define CONFIGURE_SMP_MAXIMUM_PROCESSORS 1 |
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60 | |
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61 | #define CONFIGURE_SCHEDULER_CONTROLS |
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62 | |
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63 | #define CONFIGURE_SMP_SCHEDULER_ASSIGNMENTS RTEMS_SCHEDULER_ASSIGN_NO_SCHEDULER |
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64 | |
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65 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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66 | |
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67 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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68 | |
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69 | #define CONFIGURE_INIT |
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70 | |
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71 | #include <rtems/confdefs.h> |
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