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times @ d5154d0f

Last change on this file since d5154d0f was d5154d0f, checked in by Aun-Ali Zaidi <admin@…>, on 12/23/15 at 20:44:02

api: Remove deprecated Notepads

Notepads where a feature of RTEMS' tasks that simply functioned in
the same way as POSIX keys or threaded local storage (TLS). They were
introduced well before per task variables, which are also deprecated,
and were barely used in favor of their POSIX alternatives.

In addition to their scarce usage, Notepads took up unnecessary memory.
For each task:

16 32-bit integers were allocated.
A total of 64 bytes per task per thread.

This is especially critical in low memory and safety-critical applications.

They are also defined as uint32_t, and therefore are not guaranteed to
hold a pointer.

Lastly, they are not portable solutions for SMP and uniprocessor systems,
like POSIX keys and TLS.

updates #2493.

Property mode set to 100644

File size: 11.5 KB

Line
1	#
2	# Timing Test Suite Results for the Ezkit533
3	#
4
5	Board:
6	CPU: Blackfin 533
7	Clock Speed: 400 MHz
8	Memory Configuration: SDRAM 133 MHz
9	Wait States:
10
11	Times Reported in: microseconds
12	Timer Source: on-CPU cycle counter
13
14	Column A: -o0 optimization
15	Column B: -o2 optimization
16	Column C: -o4 optimization
17
18	# DESCRIPTION A B C
19	== ================================================================= ==== ==== ====
20	1 rtems_semaphore_create 42 17 17
21	rtems_semaphore_delete 34 17 16
22	rtems_semaphore_obtain: available 13 5 5
23	rtems_semaphore_obtain: not available -- NO_WAIT 13 5 5
24	rtems_semaphore_release: no waiting tasks 21 12 12
25
26	2 rtems_semaphore_obtain: not available -- caller blocks 86 39 37
27
28	3 rtems_semaphore_release: task readied -- preempts caller NC
29
30	4 rtems_task_restart: blocked task -- preempts caller NC
31	rtems_task_restart: ready task -- preempts caller NC
32	rtems_semaphore_release: task readied -- returns to caller NC
33	rtems_task_create NC
34	rtems_task_start NC
35	rtems_task_restart: suspended task -- returns to caller NC
36	rtems_task_delete: suspended task NC
37	rtems_task_restart: ready task -- returns to caller NC
38	rtems_task_restart: blocked task -- returns to caller NC
39	rtems_task_delete: blocked task NC
40
41	5 rtems_task_suspend: calling task NC
42	rtems_task_resume: task readied -- preempts caller NC
43
44	6 rtems_task_restart: calling task NC
45	rtems_task_suspend: returns to caller NC
46	rtems_task_resume: task readied -- returns to caller NC
47	rtems_task_delete: ready task NC
48
49	7 rtems_task_restart: suspended task -- preempts caller NC 50 49
50
51	8 rtems_task_set_priority: obtain current priority NC 8 8
52	rtems_task_set_priority: returns to caller NC 17 16
53	rtems_task_mode: obtain current mode NC 6 6
54	rtems_task_mode: no reschedule NC 6 6
55	rtems_task_mode: reschedule -- returns to caller NC 8 8
56	rtems_task_mode: reschedule -- preempts caller NC 31 30
57	rtems_clock_set NC 25 25
58	rtems_clock_get NC 2 2
59
60	9 rtems_message_queue_create NC 63
61	rtems_message_queue_send: no waiting tasks NC 20
62	rtems_message_queue_urgent: no waiting tasks NC 20
63	rtems_message_queue_receive: available NC 20
64	rtems_message_queue_flush: no messages flushed NC 8
65	rtems_message_queue_flush: messages flushed NC 11
66	rtems_message_queue_delete NC 28
67
68	10 rtems_message_queue_receive: not available -- NO_WAIT NC 11
69	rtems_message_queue_receive: not available -- caller blocks NC 40
70
71	11 rtems_message_queue_send: task readied -- preempts caller NC
72
73	12 rtems_message_queue_send: task readied -- returns to caller NC
74
75	13 rtems_message_queue_urgent: task readied -- preempts caller NC
76
77	14 rtems_message_queue_urgent: task readied -- returns to caller NC
78
79	15 rtems_event_receive: obtain current events NC 1
80	rtems_event_receive: not available -- NO_WAIT NC 7
81	rtems_event_receive: not available -- caller blocks NC 33
82	rtems_event_send: no task readied NC 6
83	rtems_event_receive: available NC 9
84	rtems_event_send: task readied -- returns to caller NC 13
85
86	16 rtems_event_send: task readied -- preempts caller NC
87
88	17 rtems_task_set_priority: preempts caller NC 38
89
90	18 rtems_task_delete: calling task NC 109
91
92	19 rtems_signal_catch NC 6
93	rtems_signal_send: returns to caller NC 10
94	rtems_signal_send: signal to self NC 18
95	exit ASR overhead: returns to calling task NC 14
96	exit ASR overhead: returns to preempting task NC
97
98	20 rtems_partition_create NC 4
99	rtems_region_create NC 3
100	rtems_partition_get_buffer: available NC 8
101	rtems_partition_get_buffer: not available NC
102	rtems_partition_return_buffer NC
103	rtems_partition_delete NC
104	rtems_region_get_segment: available NC
105	rtems_region_get_segment: not available -- NO_WAIT NC
106	rtems_region_return_segment: no waiting tasks NC
107	rtems_region_get_segment: not available -- caller blocks NC
108	rtems_region_return_segment: task readied -- preempts caller NC
109	rtems_region_return_segment: task readied -- returns to caller NC
110	rtems_region_delete NC
111	rtems_io_initialize NC
112	rtems_io_open NC
113	rtems_io_close NC
114	rtems_io_read NC
115	rtems_io_write NC
116	rtems_io_control NC
117
118	21 rtems_task_ident NC
119	rtems_message_queue_ident NC
120	rtems_semaphore_ident NC
121	rtems_partition_ident NC
122	rtems_region_ident NC
123	rtems_port_ident NC
124	rtems_timer_ident NC
125	rtems_rate_monotonic_ident NC
126
127	22 rtems_message_queue_broadcast: task readied -- returns to caller NC 25
128	rtems_message_queue_broadcast: no waiting tasks NC
129	rtems_message_queue_broadcast: task readied -- preempts caller NC
130
131	23 rtems_timer_create NC 10 9
132	rtems_timer_fire_after: inactive NC 16 15
133	rtems_timer_fire_after: active NC 17 17
134	rtems_timer_cancel: active NC 10 9
135	rtems_timer_cancel: inactive NC 8 7
136	rtems_timer_reset: inactive NC 15 14
137	rtems_timer_reset: active NC 16 16
138	rtems_timer_fire_when: inactive NC 22 22
139	rtems_timer_fire_when: active NC 23 22
140	rtems_timer_delete: active NC 13 13
141	rtems_timer_delete: inactive NC 12 11
142	rtems_task_wake_when NC 44 43
143
144	24 rtems_task_wake_after: yield -- returns to caller NC 6
145	rtems_task_wake_after: yields -- preempts caller NC 27
146
147	25 rtems_clock_tick NC 6
148
149	26 _ISR_Disable NC
150	_ISR_Flash NC
151	_ISR_Enable NC
152	_Thread_Disable_dispatch NC
153	_Thread_Enable_dispatch NC
154	_Thread_Set_state NC
155	_Thread_Disptach (NO FP) NC
156	context switch: no floating point contexts NC
157	context switch: self NC
158	context switch: to another task NC
159	context switch: restore 1st FP task NC
160	fp context switch: save idle, restore idle NC
161	fp context switch: save idle, restore initialized NC
162	fp context switch: save initialized, restore initialized NC
163	_Thread_Resume NC
164	_Thread_Unblock NC
165	_Thread_Ready NC
166	_Thread_Get NC
167	_Semaphore_Get NC
168	_Thread_Get: invalid id NC
169
170	27 interrupt entry overhead: returns to interrupted task NC 0
171	interrupt exit overhead: returns to interrupted task NC 0
172	interrupt entry overhead: returns to nested interrupt NC 0
173	interrupt exit overhead: returns to nested interrupt NC 0
174	interrupt entry overhead: returns to preempting task NC 0
175	interrupt exit overhead: returns to preempting task NC
176
177	28 rtems_port_create NC 12
178	rtems_port_external_to_internal NC 7
179	rtems_port_internal_to_external NC 7
180	rtems_port_delete NC 11
181
182	29 rtems_rate_monotonic_create 27 12 12
183	rtems_rate_monotonic_period: initiate period -- returns to caller 30 15 15
184	rtems_rate_monotonic_period: obtain status 14 9 9
185	rtems_rate_monotonic_cancel 21 12 11
186	rtems_rate_monotonic_delete: inactive 26 14 14
187	rtems_rate_monotonic_delete: active 32 15 15
188	rtems_rate_monotonic_period: conclude periods -- caller blocks NC

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