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The only thing that comes close is iostat from the sysstat suite which also works for regular users or maybe atop -d (fails with a floating pointing exception here). Nearly same question was already asked here: http://serverfault.com/questions/260818/in-absense-of-iotop-which-command-is-most-appropriate-for-get-i-o-bounded-proces iotop doesn't work for ...


0

stat or /proc/[PID]/mountinfo should still tell you what the device numbers are: [root@XXXlin01 block]# stat --printf="%d" /tmp/mnt; echo 24 [root@XXXlin01 block]# stat --printf="%d" /tmp/mnt2; echo 25 [root@XXXlin01 block]# grep "/tmp/mnt" /proc/22195/mountinfo 40 20 0:24 / /tmp/mnt rw,relatime - tmpfs none rw 41 20 0:25 / /tmp/mnt2 rw,relatime - tmpfs ...


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There are several ways to tune I/O performance. file system choice - choose a file system depending on what your typical data looks like - some file systems handle better lots of smaller files, some do well for large files, some don't scale well when accessing (especially creating) multiple files at once. Defragmenting might help on spinning plate drives ...



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