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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2013-04-12 16:45:34 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2013-04-15 19:58:17 +0200 |
| commit | c5bfece2d6129131b4ade985e63bc35ddf5868d4 (patch) | |
| tree | 65b7f1c3e9ad5dd45375ccdc1dab187ba968cf59 /Documentation | |
| parent | 0644ca5c774f1a7033bfc83c7ed0660f74f28b56 (diff) | |
| download | lwn-c5bfece2d6129131b4ade985e63bc35ddf5868d4.tar.gz lwn-c5bfece2d6129131b4ade985e63bc35ddf5868d4.zip | |
nohz: Switch from "extended nohz" to "full nohz" based naming
"Extended nohz" was used as a naming base for the full dynticks
API and Kconfig symbols. It reflects the fact the system tries
to stop the tick in more places than just idle.
But that "extended" name is a bit opaque and vague. Rename it to
"full" makes it clearer what the system tries to do under this
config: try to shutdown the tick anytime it can. The various
constraints that prevent that to happen shouldn't be considered
as fundamental properties of this feature but rather technical
issues that may be solved in the future.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Gilad Ben Yossef <gilad@benyossef.com>
Cc: Hakan Akkan <hakanakkan@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 231698feaddc..82365dde00a8 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1913,8 +1913,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Valid arguments: on, off Default: on - nohz_extended= [KNL,BOOT] - In kernels built with CONFIG_NO_HZ_EXTENDED=y, set + nohz_full= [KNL,BOOT] + In kernels built with CONFIG_NO_HZ_FULL=y, set the specified list of CPUs whose tick will be stopped whenever possible. You need to keep at least one online CPU outside the range to maintain the timekeeping. |