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proc_pid_timerslack_ns

Section: File Formats (5)
Updated: 2024-05-02
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NAME

/proc/pid/timerslack_ns - timer slack in nanoseconds  

DESCRIPTION

/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)

 

Index

NAME
DESCRIPTION
SEE ALSO
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Time: 11:48:45 GMT, September 14, 2026