tools/tests/perf_index/stress_file_ram.c

   1 #include <fcntl.h>
   2 #include "perf_index.h"
   3 #include <errno.h>
   4
   5 #define MAX_FILE_SIZE 536870912L
   6
   7 const stress_test_t file_ram_create_test = {"ram_file_create", &stress_file_ram_create_init, &stress_file_ram_create, &stress_file_ram_create_cleanup, &no_validate};
   8 const stress_test_t file_ram_write_test = {"ram_file_write", &stress_file_ram_write_init, &stress_file_ram_write, &stress_file_ram_write_cleanup, &no_validate};
   9 const stress_test_t file_ram_read_test = {"ram_file_read", &stress_file_ram_read_init, &stress_file_ram_read, &stress_file_ram_read_cleanup, &no_validate};
  10
  11 static const char ramdiskname[] = "StressRamDisk";
  12
  13 static const char fs_path[MAXPATHLEN] = "/Volumes/StressRamDisk";
  14
  15 static void setup_ram_volume(void) {
  16   char *cmd;
  17   assert(asprintf(&cmd, "diskutil erasevolume HFS+ \"%s\" `hdiutil attach -nomount ram://1500000` >/dev/null", ramdiskname) >= 0);
  18   assert(system(cmd) == 0);
  19   free(cmd);
  20 }
  21
  22 static void cleanup_ram_volume(void) {
  23   char *cmd;
  24   assert(asprintf(&cmd, "umount -f %s >/dev/null", fs_path) >= 0);
  25   assert(system(cmd) == 0);
  26   free(cmd);
  27 }
  28
  29 DECL_INIT(stress_file_ram_read_init) {
  30   setup_ram_volume();
  31   stress_file_read_init(fs_path, num_threads, length, MAX_FILE_SIZE);
  32 }
  33
  34 DECL_TEST(stress_file_ram_read) {
  35   stress_file_read(fs_path, thread_id, num_threads, length, MAX_FILE_SIZE);
  36 }
  37
  38 DECL_CLEANUP(stress_file_ram_read_cleanup) {
  39   cleanup_ram_volume();
  40 }
  41
  42 DECL_INIT(stress_file_ram_write_init) {
  43   setup_ram_volume();
  44   stress_file_write_init(fs_path, num_threads, length);
  45 }
  46
  47 DECL_TEST(stress_file_ram_write) {
  48   stress_file_write(fs_path, thread_id, num_threads, length, MAX_FILE_SIZE);
  49 }
  50
  51 DECL_CLEANUP(stress_file_ram_write_cleanup) {
  52   cleanup_ram_volume();
  53 }
  54
  55 DECL_INIT(stress_file_ram_create_init) {
  56   setup_ram_volume();
  57 }
  58
  59 DECL_TEST(stress_file_ram_create) {
  60   stress_file_create(fs_path, thread_id, num_threads, length);
  61 }
  62
  63 DECL_CLEANUP(stress_file_ram_create_cleanup) {
  64   cleanup_ram_volume();
  65 }