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SubjectRe: [PATCH 2/2] proc: Add /proc/<pid>/timerslack_ns interface
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On 7/14/2016 5:48 AM, Serge E. Hallyn wrote:

> Can someone give a detailed explanation of what you could do with
> the new timerslack feature and compare it to what you can do with
> sys_nice?
>

what you can do with the timerslack feature is add upto 4 seconds of extra
time/delay on top of each select()/poll()/nanosleep()/... (basically anything that
uses hrtimers on behalf of the user), and then also control within that
4 second window exactly when that extra delay ends
(which may help a timing attack kind of scenario)


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