HI guys! I'm trying use the --thinktime parameter to sleep between each io request for ten seconds. But, it seems not working... I'm doing something incorrect? fio --name disktst ... --thinktime 10000000 In HOWTO, this param is described as 'Stall the job x microseconds'... But fio dont stop between each request and continues issuing. This is complete command line that i used: fio --name IoRequestDelayTest --directory J\:\ --iodepth 1 --bs 4k --size 1G --io_size 1G --direct 1 --thread --runtime 1h --time_based --rw randread --thinktime 10000000 The J: is mounted on a USB flash drive (Kingston SE9 32GB) -- []'s Rodrigo Ribeiro Gomes MCITP: Database Administrator 2008 MCITP: Database Developer 2008 061 8106-2710 (Acesse o blog THE SQL TIMES | http://www.thesqltimes.com) -- 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