diff options
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a1a9ba6c4e02..73cd3b3e1fe1 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3941,6 +3941,15 @@ Set threshold of queued RCU callbacks below which batch limiting is re-enabled. + rcutree.qovld= [KNL] + Set threshold of queued RCU callbacks beyond which + RCU's force-quiescent-state scan will aggressively + enlist help from cond_resched() and sched IPIs to + help CPUs more quickly reach quiescent states. + Set to less than zero to make this be set based + on rcutree.qhimark at boot time and to zero to + disable more aggressive help enlistment. + rcutree.rcu_idle_gp_delay= [KNL] Set wakeup interval for idle CPUs that have RCU callbacks (RCU_FAST_NO_HZ=y). @@ -3984,6 +3993,19 @@ test until boot completes in order to avoid interference. + rcuperf.kfree_rcu_test= [KNL] + Set to measure performance of kfree_rcu() flooding. + + rcuperf.kfree_nthreads= [KNL] + The number of threads running loops of kfree_rcu(). + + rcuperf.kfree_alloc_num= [KNL] + Number of allocations and frees done in an iteration. + + rcuperf.kfree_loops= [KNL] + Number of loops doing rcuperf.kfree_alloc_num number + of allocations and frees. + rcuperf.nreaders= [KNL] Set number of RCU readers. The value -1 selects N, where N is the number of CPUs. A value @@ -4143,6 +4165,12 @@ rcupdate.rcu_cpu_stall_suppress= [KNL] Suppress RCU CPU stall warning messages. + rcupdate.rcu_cpu_stall_suppress_at_boot= [KNL] + Suppress RCU CPU stall warning messages and + rcutorture writer stall warnings that occur + during early boot, that is, during the time + before the init task is spawned. + rcupdate.rcu_cpu_stall_timeout= [KNL] Set timeout for RCU CPU stall warning messages. @@ -4815,6 +4843,10 @@ topology updates sent by the hypervisor to this LPAR. + torture.disable_onoff_at_boot= [KNL] + Prevent the CPU-hotplug component of torturing + until after init has spawned. + tp720= [HW,PS2] tpm_suspend_pcr=[HW,TPM] |