> > The '--cpu-resume-latency' can use to control C-state selection. > Setting the CPU resume latency to 0 can limit the CPU just to enter > C0-state to improve performance, which also may increase the power > consumption of platform. > > Signed-off-by: Huisong Li <lihuis...@huawei.com> > Acked-by: Morten Brørup <m...@smartsharesystems.com> > Acked-by: Chengwen Feng <fengcheng...@huawei.com> > --- > .../sample_app_ug/l3_forward_power_man.rst | 5 +- > examples/l3fwd-power/main.c | 55 +++++++++++++++++++ > 2 files changed, 59 insertions(+), 1 deletion(-) > > diff --git a/doc/guides/sample_app_ug/l3_forward_power_man.rst > b/doc/guides/sample_app_ug/l3_forward_power_man.rst > index 9c9684fea7..70fa83669a 100644 > --- a/doc/guides/sample_app_ug/l3_forward_power_man.rst > +++ b/doc/guides/sample_app_ug/l3_forward_power_man.rst > @@ -67,7 +67,8 @@ based on the speculative sleep duration of the core. > In this application, we introduce a heuristic algorithm that allows packet > processing cores to sleep for a short period > if there is no Rx packet received on recent polls. > In this way, CPUIdle automatically forces the corresponding cores to enter > deeper C-states > -instead of always running to the C0 state waiting for packets. > +instead of always running to the C0 state waiting for packets. But user can > set the CPU resume latency to control C-state selection. > +Setting the CPU resume latency to 0 can limit the CPU just to enter C0-state > to improve performance, which may increase power > consumption of platform. > > .. note:: > > @@ -105,6 +106,8 @@ where, > > * --config (port,queue,lcore)[,(port,queue,lcore)]: determines which > queues from which ports are mapped to which cores. > > +* --cpu-resume-latency LATENCY: set CPU resume latency to control C-state > selection, 0 : just allow to enter C0-state. > + > * --max-pkt-len: optional, maximum packet length in decimal (64-9600) > > * --no-numa: optional, disables numa awareness
Acked-by: Konstantin Ananyev <konstantin.anan...@huawei.com> > -- > 2.22.0
