source: rtems/testsuites/tmtests/tmck/task1.c @ ba39113

4.104.114.84.95
Last change on this file since ba39113 was ba39113, checked in by Joel Sherrill <joel.sherrill@…>, on Feb 22, 1996 at 8:14:36 PM

The name of the test support routine pause was changed to rtems_test_pause
to avoid conflict with the standard POSIX routine pause(2).

  • Property mode set to 100644
File size: 3.6 KB
Line 
1/*
2 *
3 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
4 *  On-Line Applications Research Corporation (OAR).
5 *  All rights assigned to U.S. Government, 1994.
6 *
7 *  This material may be reproduced by or for the U.S. Government pursuant
8 *  to the copyright license under the clause at DFARS 252.227-7013.  This
9 *  notice must appear in all copies of this file and its derivatives.
10 *
11 *  $Id$
12 */
13
14
15#define TEST_INIT
16#include "system.h"
17
18#define MAXIMUM_DISTRIBUTION 10000
19
20#undef OPERATION_COUNT
21#define OPERATION_COUNT    100000
22
23int Distribution[ MAXIMUM_DISTRIBUTION + 1 ];
24
25rtems_task Task_1(
26  rtems_task_argument argument
27);
28
29void check_read_timer( void );
30
31rtems_task Init(
32  rtems_task_argument argument
33)
34{
35  rtems_id          id;
36  rtems_status_code status;
37
38  /*
39   *  Tell the Timer Driver what we are doing
40   */
41
42  Set_find_average_overhead( 1 );
43
44  Print_Warning();
45
46  puts( "\n\n*** TIME CHECKER ***" );
47
48  Task_name[ 1 ] = rtems_build_name( 'T', 'A', '1', ' ' ),
49
50  status = rtems_task_create(
51    1,
52    5,
53    RTEMS_MINIMUM_STACK_SIZE,
54    RTEMS_DEFAULT_MODES,
55    RTEMS_DEFAULT_ATTRIBUTES,
56    &id
57  );
58  directive_failed( status, "rtems_task_create of TA1" );
59
60  status = rtems_task_start( id, Task_1, 0 );
61  directive_failed( status, "rtems_task_start of TA1" );
62
63  status = rtems_task_delete( RTEMS_SELF );
64  directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
65}
66
67rtems_task Task_1(
68  rtems_task_argument argument
69)
70{
71  rtems_unsigned32 index;
72
73  check_read_timer();
74rtems_test_pause();
75
76  Timer_initialize();
77  end_time = Read_timer();
78
79  put_time(
80    "NULL timer stopped at",
81    end_time,
82    1,
83    0,
84    0
85  );
86
87  Timer_initialize();
88  for ( index = 1 ; index <= 1000 ; index++ )
89    (void) Empty_function();
90  end_time = Read_timer();
91
92  put_time(
93    "LOOP (1000) timer stopped at",
94    end_time,
95    1,
96    0,
97    0
98  );
99
100  Timer_initialize();
101  for ( index = 1 ; index <= 10000 ; index++ )
102    (void) Empty_function();
103  end_time = Read_timer();
104
105  put_time(
106    "LOOP (10000) timer stopped at",
107    end_time,
108    1,
109    0,
110    0
111  );
112
113  Timer_initialize();
114  for ( index = 1 ; index <= 50000 ; index++ )
115    (void) Empty_function();
116  end_time = Read_timer();
117
118  put_time(
119    "LOOP (50000) timer stopped at",
120    end_time,
121    1,
122    0,
123    0
124  );
125
126  Timer_initialize();
127  for ( index = 1 ; index <= 100000 ; index++ )
128    (void) Empty_function();
129  end_time = Read_timer();
130
131  put_time(
132    "LOOP (100000) timer stopped at",
133    end_time,
134    1,
135    0,
136    0
137  );
138
139  puts( "*** END OF TIME CHECKER ***" );
140  exit( 0 );
141}
142
143void check_read_timer()
144{
145  rtems_unsigned32 index;
146  rtems_unsigned32 time;
147
148  for ( index = 1 ; index <= MAXIMUM_DISTRIBUTION ; index++ )
149    Distribution[ index ] = 0;
150
151  for ( index = 1 ; index <= OPERATION_COUNT ; index++ ) {
152    Timer_initialize();
153    end_time = Read_timer();
154    if ( end_time > MAXIMUM_DISTRIBUTION ) {
155      /*
156       *  Under UNIX a simple process swap takes longer than we
157       *  consider valid for our testing purposes.
158       */
159      printf( "TOO LONG (%d) at index %d!!!\n", end_time, index );
160#if defined(unix) || defined(go32)
161      index--; 
162      continue;
163#else
164      exit( 1 );
165#endif
166    }
167    else
168      Distribution[ end_time ]++;
169  }
170
171  printf( "Units may not be in microseconds for this test!!!\n" );
172  time = 0;
173  for ( index = 0 ; index <= MAXIMUM_DISTRIBUTION ; index++ ) {
174    time += (Distribution[ index ] * index);
175    if ( Distribution[ index ] != 0 )
176      printf( "%d %d\n", index, Distribution[ index ] );
177  }
178  printf( "Total time = %d\n", time );
179  printf( "Average time = %d\n", time / OPERATION_COUNT );
180}
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