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)
