writespeed.c 2.3 KB

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  1. /*
  2. * Copyright (c) 2006-2021, RT-Thread Development Team
  3. *
  4. * SPDX-License-Identifier: Apache-2.0
  5. *
  6. * Change Logs:
  7. * Date Author Notes
  8. * 2010-02-10 Bernard first version
  9. * 2020-04-12 Jianjia Ma add msh cmd
  10. */
  11. #include <rtthread.h>
  12. #include <dfs_file.h>
  13. #include <unistd.h>
  14. #include <stdio.h>
  15. #include <sys/stat.h>
  16. #include <sys/statfs.h>
  17. void writespeed(const char* filename, int total_length, int block_size)
  18. {
  19. int fd, index, length;
  20. char *buff_ptr;
  21. rt_tick_t tick;
  22. fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0);
  23. if (fd < 0)
  24. {
  25. rt_kprintf("open file:%s failed\n", filename);
  26. return;
  27. }
  28. buff_ptr = rt_malloc(block_size);
  29. if (buff_ptr == RT_NULL)
  30. {
  31. rt_kprintf("no memory\n");
  32. close(fd);
  33. return;
  34. }
  35. /* prepare write data */
  36. for (index = 0; index < block_size; index++)
  37. {
  38. buff_ptr[index] = index;
  39. }
  40. index = 0;
  41. /* get the beginning tick */
  42. tick = rt_tick_get();
  43. while (index < total_length / block_size)
  44. {
  45. length = write(fd, buff_ptr, block_size);
  46. if (length != block_size)
  47. {
  48. rt_kprintf("write failed\n");
  49. break;
  50. }
  51. index ++;
  52. }
  53. tick = rt_tick_get() - tick;
  54. /* close file and release memory */
  55. close(fd);
  56. rt_free(buff_ptr);
  57. /* calculate write speed */
  58. rt_kprintf("File write speed: %d byte/s\n", total_length / tick * RT_TICK_PER_SECOND);
  59. }
  60. #ifdef RT_USING_FINSH
  61. #include <finsh.h>
  62. FINSH_FUNCTION_EXPORT(writespeed, perform file write test);
  63. static void cmd_writespeed(int argc, char *argv[])
  64. {
  65. char* filename;
  66. int length;
  67. int block_size;
  68. if(argc == 4)
  69. {
  70. filename = argv[1];
  71. length = atoi(argv[2]);
  72. block_size = atoi(argv[3]);
  73. }
  74. else if(argc == 2)
  75. {
  76. filename = argv[1];
  77. block_size = 512;
  78. length = 1024*1024;
  79. }
  80. else
  81. {
  82. rt_kprintf("Usage:\nwritespeed [file_path] [length] [block_size]\n");
  83. rt_kprintf("writespeed [file_path] with default length 1MB and block size 512\n");
  84. return;
  85. }
  86. writespeed(filename, length, block_size);
  87. }
  88. MSH_CMD_EXPORT_ALIAS(cmd_writespeed, writespeed, test file system write speed);
  89. #endif /* RT_USING_FINSH */