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proc_pid_timerslack_ns
Section: File Formats (5) Updated: 202-0-08 Index
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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
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- DESCRIPTION
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- SEE ALSO
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