在Linux设备和Mac之间共享文件的情况下，mac os x lion中的fwrite（）和fread（）需要很长时间

I have a simple Mac C program which writes data to a raw data file located on a USB device connected to a Mac computer. The raw data file is stored in the device which is FAT32 file formatted. The Linux C program which is running on the device opens the same file using I have a simple Mac C program which writes data