On 08/27/2013 05:15 PM, Alket Memushaj wrote: > is it possible to have fio fill the I/O buffers with data from a block > device? when testing systems with both deduplication and compression > enabled, it would be easier to fill the buffers with existing data. It would not be impossible. But if you look at how fio allocates and uses it's IO buffers, then you would need to continually fill them before use since it reuses the same amount of them (defined by iodepth * jobs). It might be more feasible to analyze the data contents, and then improve fio to be able to express that more easily. -- Jens Axboe -- 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
