A quick and dirty POC (Plain Ol' C) program to test file creation.

file_creation_test.c

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>

int main(int argc, const char* argv[])
{
  char name[1024];
  char buffer[150];
  for (int i = 0; i < 100000; ++i) {
    arc4random_buf(buffer, sizeof(buffer));
    snprintf(name, sizeof(name), "/Users/idz/JezenTest/%d.bin", i);
    int fd = open(name, O_WRONLY|O_CREAT, 0777);
    if(fd < 0)
    {
      perror("open");
      exit(EXIT_FAILURE);
    }
    int n = write(fd, buffer, sizeof(buffer));
    if (n != sizeof(buffer))
    {
      perror("write");
      exit(EXIT_FAILURE);
    }
    close(fd);
  }
  return EXIT_SUCCESS;
}