fio seems to be creating test files that are twice as large as requested. The following config creates a file that is 209,715,200 bytes in size: [read] size=100M rw=read Environment: Windows 7 32-bit, fio 2.0.8 Greg. -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html