> -----邮件原件----- > 发件人: Feifei Wang <feifei.wa...@arm.com> > 发送时间: Wednesday, December 14, 2022 4:14 PM > 抄送: dev@dpdk.org; nd <n...@arm.com>; Feifei Wang > <feifei.wa...@arm.com> > 主题: [PATCH v5 0/2] Enable PMD power management on Arm > > For Arm aarch, use WFE instructions to enable PMD power management. > > Test Results: > dynamic instructions over 1sec without wfe with wfe > percentage > ampere-altra 6,298,483,712 9,117,624 -99.855% > thunderx2 6,990,909,373 3,247,226 -99.954% > > When power efficient PMD is enabled by using WFE on Arm, if no pkts > received, the instructions that CPU executes is reduced by 99%. > > V2: > 1. move rte_wake_up API out of signal_exit(David Marchand, Thomas, > Stephen) 2. Add test results when using wfe on ARM server > > v3: > 1. make code cleaner (Stephen) > > v4: > 1. add support check in API (Thomas) > > v5: > 1. delete v4 check patch and l3fwd-power change. This is due to that WFE > instructions can be applied into all lcores. > When all cores are in 'WFE' state, kernal can run normally and receive > interrupt signal to send it to the l3fwd-power thread. > Thus core in 'WFE' state can exit from sleeping by interrupt event. > > > Feifei Wang (2): > eal: add 8 bits case for wait scheme > eal: add power mgmt support on Arm > > lib/eal/arm/include/rte_pause_64.h | 32 +++++++++++-- > lib/eal/arm/rte_cpuflags.c | 5 +++ > lib/eal/arm/rte_power_intrinsics.c | 72 > ++++++++++++++++++++++++++++-- > 3 files changed, 102 insertions(+), 7 deletions(-) > > -- > 2.25.1
+ping Would the maintainers help review this patch? Thanks very much~ Best Regards Feifei
