On Tue, Apr 28, 2020 at 10:58:49PM +0200, Uladzislau Rezki (Sony) wrote: > Document the rcutree.rcu_min_cached_objs sysfs kernel parameter. > > Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx> Could you please combine this wtih the patch that created this sysfs parameter? Thanx, Paul > --- > Documentation/admin-guide/kernel-parameters.txt | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 828ff975fbc6..b2b7022374af 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -3977,6 +3977,14 @@ > latencies, which will choose a value aligned > with the appropriate hardware boundaries. > > + rcutree.rcu_min_cached_objs= [KNL] > + Minimum number of objects which are cached and > + maintained per one CPU. Object size is equal > + to PAGE_SIZE. The cache allows to reduce the > + pressure to page allocator, also it makes the > + whole algorithm to behave better in low memory > + condition. > + > rcutree.jiffies_till_first_fqs= [KNL] > Set delay from grace-period initialization to > first attempt to force quiescent states. > -- > 2.20.1 >
