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times_i486dx @ f636e91a

Last change on this file since f636e91a 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: 11.6 KB

Line
1	#
2	# Timing Test Suite Results for the pc386 BSP using an i486DX
3	#
4
5	Board: PC/AT clone
6	CPU: Intel i486DX
7	Clock Speed: 33 Mhz
8	Memory Configuration: DRAM w/256K cache
9	Wait States: unknown
10
11	Times Reported in: microseconds
12	Timer Source: i8254
13
14	Column A: 3.5.1 pre-release
15	Column B: 3.5.17 pre-release
16
17	# DESCRIPTION A B
18	== ================================================================= ==== ====
19	1 rtems_semaphore_create 57 66
20	rtems_semaphore_delete 59 61
21	rtems_semaphore_obtain: available 9 7
22	rtems_semaphore_obtain: not available -- NO_WAIT 8 7
23	rtems_semaphore_release: no waiting tasks 9 8
24
25	2 rtems_semaphore_obtain: not available -- caller blocks 39 37
26
27	3 rtems_semaphore_release: task readied -- preempts caller 25 24
28
29	4 rtems_task_restart: blocked task -- preempts caller 124 102
30	rtems_task_restart: ready task -- preempts caller 55 111
31	rtems_semaphore_release: task readied -- returns to caller 16 15
32	rtems_task_create 31 30
33	rtems_task_start 19 18
34	rtems_task_restart: suspended task -- returns to caller 20 19
35	rtems_task_delete: suspended task 28 26
36	rtems_task_restart: ready task -- returns to caller 20 19
37	rtems_task_restart: blocked task -- returns to caller 28 26
38	rtems_task_delete: blocked task 34 28
39
40	5 rtems_task_suspend: calling task 26 23
41	rtems_task_resume: task readied -- preempts caller 17 15
42
43	6 rtems_task_restart: calling task 22 19
44	rtems_task_suspend: returns to caller 10 8
45	rtems_task_resume: task readied -- returns to caller 10 8
46	rtems_task_delete: ready task 34 33
47
48	7 rtems_task_restart: suspended task -- preempts caller 37 34
49
50	8 rtems_task_set_priority: obtain current priority 7 5
51	rtems_task_set_priority: returns to caller 13 12
52	rtems_task_mode: obtain current mode 3 3
53	rtems_task_mode: no reschedule 4 4
54	rtems_task_mode: reschedule -- returns to caller 20 17
55	rtems_task_mode: reschedule -- preempts caller 39 37
56	rtems_clock_set 17 16
57	rtems_clock_get 2 1
58
59	9 rtems_message_queue_create 117 113
60	rtems_message_queue_send: no waiting tasks 22 19
61	rtems_message_queue_urgent: no waiting tasks 22 19
62	rtems_message_queue_receive: available 18 16
63	rtems_message_queue_flush: no messages flushed 15 14
64	rtems_message_queue_flush: messages flushed 17 17
65	rtems_message_queue_delete 63 63
66
67	10 rtems_message_queue_receive: not available -- NO_WAIT 10 8
68	rtems_message_queue_receive: not available -- caller blocks 42 40
69
70	11 rtems_message_queue_send: task readied -- preempts caller 38 37
71
72	12 rtems_message_queue_send: task readied -- returns to caller 27 24
73
74	13 rtems_message_queue_urgent: task readied -- preempts caller 38 36
75
76	14 rtems_message_queue_urgent: task readied -- returns to caller 26 24
77
78	15 rtems_event_receive: obtain current events 0 0
79	rtems_event_receive: not available -- NO_WAIT 6 5
80	rtems_event_receive: not available -- caller blocks 34 33
81	rtems_event_send: no task readied 6 5
82	rtems_event_receive: available 21 19
83	rtems_event_send: task readied -- returns to caller 19 15
84
85	16 rtems_event_send: task readied -- preempts caller 26 24
86
87	17 rtems_task_set_priority: preempts caller 36 33
88
89	18 rtems_task_delete: calling task 51 52
90
91	19 rtems_signal_catch 17 18
92	rtems_signal_send: returns to caller 38 39
93	rtems_signal_send: signal to self 46 62
94	exit ASR overhead: returns to calling task 20 25
95	exit ASR overhead: returns to preempting task 29 29
96
97	20 rtems_partition_create 65 67
98	rtems_region_create 59 54
99	rtems_partition_get_buffer: available 39 35
100	rtems_partition_get_buffer: not available 18 16
101	rtems_partition_return_buffer 36 30
102	rtems_partition_delete 32 30
103	rtems_region_get_segment: available 22 21
104	rtems_region_get_segment: not available -- NO_WAIT 29 25
105	rtems_region_return_segment: no waiting tasks 24 22
106	rtems_region_get_segment: not available -- caller blocks 83 81
107	rtems_region_return_segment: task readied -- preempts caller 85 84
108	rtems_region_return_segment: task readied -- returns to caller 39 41
109	rtems_region_delete 30 30
110	rtems_io_initialize 1 1
111	rtems_io_open 0 0
112	rtems_io_close 0 0
113	rtems_io_read 0 0
114	rtems_io_write 0 0
115	rtems_io_control 0 1
116
117	21 rtems_task_ident 116 114
118	rtems_message_queue_ident 113 111
119	rtems_semaphore_ident 122 120
120	rtems_partition_ident 113 110
121	rtems_region_ident 115 111
122	rtems_port_ident 113 109
123	rtems_timer_ident 113 109
124	rtems_rate_monotonic_ident 113 111
125
126	22 rtems_message_queue_broadcast: task readied -- returns to caller 82 85
127	rtems_message_queue_broadcast: no waiting tasks 11 9
128	rtems_message_queue_broadcast: task readied -- preempts caller 51 56
129
130	23 rtems_timer_create 8 7
131	rtems_timer_fire_after: inactive 14 12
132	rtems_timer_fire_after: active 13 12
133	rtems_timer_cancel: active 8 7
134	rtems_timer_cancel: inactive 7 6
135	rtems_timer_reset: inactive 11 10
136	rtems_timer_reset: active 11 11
137	rtems_timer_fire_when: inactive 17 16
138	rtems_timer_fire_when: active 17 17
139	rtems_timer_delete: active 10 9
140	rtems_timer_delete: inactive 9 8
141	rtems_task_wake_when 36 34
142
143	24 rtems_task_wake_after: yield -- returns to caller 5 3
144	rtems_task_wake_after: yields -- preempts caller 22 19
145
146	25 rtems_clock_tick 31 31
147
148	26 _ISR_Disable 11 12
149	_ISR_Flash 9 9
150	_ISR_Enable 31 67
151	_Thread_Disable_dispatch 11 10
152	_Thread_Enable_dispatch 18 18
153	_Thread_Set_state 20 22
154	_Thread_Disptach (NO FP) 37 41
155	context switch: no floating point contexts 29 26
156	context switch: self 14 10
157	context switch: to another task 12 12
158	context switch: restore 1st FP task 54 54
159	fp context switch: save idle, restore idle 47 46
160	fp context switch: save idle, restore initialized 25 25
161	fp context switch: save initialized, restore initialized 24 25
162	_Thread_Resume 23 24
163	_Thread_Unblock 14 14
164	_Thread_Ready 16 24
165	_Thread_Get 2 2
166	_Semaphore_Get 1 1
167	_Thread_Get: invalid id 0 0
168
169	27 interrupt entry overhead: returns to interrupted task 25 23
170	interrupt exit overhead: returns to interrupted task 14 15
171	interrupt entry overhead: returns to nested interrupt 12 12
172	interrupt exit overhead: returns to nested interrupt 14 14
173	interrupt entry overhead: returns to preempting task 14 16
174	interrupt exit overhead: returns to preempting task 42 38
175
176	28 rtems_port_create 43 42
177	rtems_port_external_to_internal 6 4
178	rtems_port_internal_to_external 6 4
179	rtems_port_delete 39 33
180
181	29 rtems_rate_monotonic_create 48 42
182	rtems_rate_monotonic_period: initiate period -- returns to caller 61 65
183	rtems_rate_monotonic_period: obtain status 23 21
184	rtems_rate_monotonic_cancel 38 35
185	rtems_rate_monotonic_delete: inactive 32 32
186	rtems_rate_monotonic_delete: active 22 22
187	rtems_rate_monotonic_period: conclude periods -- caller blocks 24 19

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