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The Linux kernel interfaces that iotop relies on now require root priviliges
or the NET_ADMIN capability. This change occured because a security issue
(CVE-2011-2494) was found that allows leakage of sensitive data across user
boundaries. If you require the ability to run iotop as a non-root user, please
configure sudo to allow you to run iotop as root.
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period. SWAPIN and IO are the percentages of time the thread spent respectively
while swapping in and waiting on I/O more generally. PRIO is the I/O priority at
which the thread is running (set using the ionice command).
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sorting order, o to toggle the --only option, p to toggle the --processes
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