Computer unresponsive with disk activity, even when disk is USB

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https://bbs.archlinux.org – paziul wrote:I got these 'tweaks' active to increase transfer rates on SATA drives in non RAID setups and this also lowered down the "un-responsiveness" on systems with cfq and bfq io scheduler ( on large file access / operations such as copy / decompress etc... ) - the result also varies using different process schedulers - cfs and bfs... I am not 100% satisfied with bfs but I think it runs best in my case.do a test with and without these settings and compare results....# request queues echo 4096 > /sys/block/sda/queue/nr_requests echo 4096 > /sys/block/sdb/queue/nr_ (HowTos)