source: rtems/testsuites/tmtests/tmck/task1.c @ 7f6a24ab

4.104.114.84.95
Last change on this file since 7f6a24ab was 4ca27cf, checked in by Joel Sherrill <joel.sherrill@…>, on Jul 18, 1995 at 9:19:53 PM

committing for rtems-3.2.01 snapshot

  • Property mode set to 100644
File size: 3.5 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#include "system.h"
16#undef EXTERN
17#define EXTERN
18#include "conftbl.h"
19#include "gvar.h"
20
21#define MAXIMUM_DISTRIBUTION 10000
22
23#undef OPERATION_COUNT
24#define OPERATION_COUNT    100000
25
26int Distribution[ MAXIMUM_DISTRIBUTION + 1 ];
27
28rtems_task Task_1(
29  rtems_task_argument argument
30);
31
32void check_read_timer( void );
33
34rtems_task Init(
35  rtems_task_argument argument
36)
37{
38  rtems_id          id;
39  rtems_status_code status;
40
41  /*
42   *  Tell the Timer Driver what we are doing
43   */
44
45  Set_find_average_overhead( 1 );
46
47  puts( "\n\n*** TIME CHECKER ***" );
48
49  Task_name[ 1 ] = rtems_build_name( 'T', 'A', '1', ' ' ),
50
51  status = rtems_task_create(
52    1,
53    5,
54    1024,
55    RTEMS_DEFAULT_MODES,
56    RTEMS_DEFAULT_ATTRIBUTES,
57    &id
58  );
59  directive_failed( status, "rtems_task_create of TA1" );
60
61  status = rtems_task_start( id, Task_1, 0 );
62  directive_failed( status, "rtems_task_start of TA1" );
63
64  status = rtems_task_delete( RTEMS_SELF );
65  directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
66}
67
68rtems_task Task_1(
69  rtems_task_argument argument
70)
71{
72  rtems_unsigned32 index;
73
74  check_read_timer();
75pause();
76
77  Timer_initialize();
78  end_time = Read_timer();
79
80  put_time(
81    "NULL timer stopped at",
82    end_time,
83    1,
84    0,
85    0
86  );
87
88  Timer_initialize();
89  for ( index = 1 ; index <= 1000 ; index++ )
90    (void) Empty_function();
91  end_time = Read_timer();
92
93  put_time(
94    "LOOP (1000) timer stopped at",
95    end_time,
96    1,
97    0,
98    0
99  );
100
101  Timer_initialize();
102  for ( index = 1 ; index <= 10000 ; index++ )
103    (void) Empty_function();
104  end_time = Read_timer();
105
106  put_time(
107    "LOOP (10000) timer stopped at",
108    end_time,
109    1,
110    0,
111    0
112  );
113
114  Timer_initialize();
115  for ( index = 1 ; index <= 50000 ; index++ )
116    (void) Empty_function();
117  end_time = Read_timer();
118
119  put_time(
120    "LOOP (50000) timer stopped at",
121    end_time,
122    1,
123    0,
124    0
125  );
126
127  Timer_initialize();
128  for ( index = 1 ; index <= 100000 ; index++ )
129    (void) Empty_function();
130  end_time = Read_timer();
131
132  put_time(
133    "LOOP (100000) timer stopped at",
134    end_time,
135    1,
136    0,
137    0
138  );
139
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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