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Message-Id: <1437175963-24681-1-git-send-email-paulmck@linux.vnet.ibm.com> Date: Fri, 17 Jul 2015 16:32:39 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: linux-kernel@...r.kernel.org Cc: mingo@...nel.org, jiangshanlai@...il.com, dipankar@...ibm.com, akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com, josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com, dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com, bobby.prani@...il.com, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> Subject: [PATCH tip/core/rcu 1/5] documentation: Bring rcutorture parameters up to date From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> This commit changes the documentation of the rcutorture parameters to better match reality. Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com> --- Documentation/kernel-parameters.txt | 35 ++++++++++++++++++++++++----------- 1 file changed, 24 insertions(+), 11 deletions(-) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1d6f0459cd7b..01b5b68a237a 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -3135,22 +3135,35 @@ bytes respectively. Such letter suffixes can also be entirely omitted. in a given burst of a callback-flood test. rcutorture.fqs_duration= [KNL] - Set duration of force_quiescent_state bursts. + Set duration of force_quiescent_state bursts + in microseconds. rcutorture.fqs_holdoff= [KNL] - Set holdoff time within force_quiescent_state bursts. + Set holdoff time within force_quiescent_state bursts + in microseconds. rcutorture.fqs_stutter= [KNL] - Set wait time between force_quiescent_state bursts. + Set wait time between force_quiescent_state bursts + in seconds. + + rcutorture.gp_cond= [KNL] + Use conditional/asynchronous update-side + primitives, if available. rcutorture.gp_exp= [KNL] - Use expedited update-side primitives. + Use expedited update-side primitives, if available. rcutorture.gp_normal= [KNL] - Use normal (non-expedited) update-side primitives. - If both gp_exp and gp_normal are set, do both. - If neither gp_exp nor gp_normal are set, still - do both. + Use normal (non-expedited) asynchronous + update-side primitives, if available. + + rcutorture.gp_sync= [KNL] + Use normal (non-expedited) synchronous + update-side primitives, if available. If all + of rcutorture.gp_cond=, rcutorture.gp_exp=, + rcutorture.gp_normal=, and rcutorture.gp_sync= + are zero, rcutorture acts as if is interpreted + they are all non-zero. rcutorture.n_barrier_cbs= [KNL] Set callbacks/threads for rcu_barrier() testing. @@ -3177,9 +3190,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Set time (s) between CPU-hotplug operations, or zero to disable CPU-hotplug testing. - rcutorture.torture_runnable= [BOOT] - Start rcutorture running at boot time. - rcutorture.shuffle_interval= [KNL] Set task-shuffle interval (s). Shuffling tasks allows some CPUs to go into dyntick-idle mode @@ -3220,6 +3230,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Test RCU's dyntick-idle handling. See also the rcutorture.shuffle_interval parameter. + rcutorture.torture_runnable= [BOOT] + Start rcutorture running at boot time. + rcutorture.torture_type= [KNL] Specify the RCU implementation to test. -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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