proc_pid_timerslack_ns
proc_pid_timerslack_ns(5) File Formats Manual proc_pid_timerslack_ns(5)
NAME
/proc/pid/timerslack_ns - timer slack in nanosecondsDESCRIPTION
/proc/pid/timerslack_ns (since Linux 4.6)
This file exposes the process's "current" timer slack value, expressed in nanoseconds. The file is writable, allowing the process's timer slack value to be changed. Writing 0
to this file resets the "current" timer slack to the "default" timer slack value. For further details, see the discussion of PR_SET_TIMERSLACK in prctl(2).
Initially, permission to access this file was governed by a ptrace access mode PTRACE_MODE_ATTACH_FSCREDS check (see ptrace(2)). However, this was subsequently deemed too
strict a requirement (and had the side effect that requiring a process to have the CAP_SYS_PTRACE capability would also allow it to view and change any process's memory).
Therefore, since Linux 4.9, only the (weaker) CAP_SYS_NICE capability is required to access this file.SEE ALSO
proc(5)Linux man-pages 6.9.1 2024-05-02 proc_pid_timerslack_ns(5)