Re: [dpdk-dev] [PATCH v2 0/5] fix and optimize barriers usage with some PMDs

2019-10-02 Thread Ferruh Yigit
On 9/16/2019 12:27 PM, Gavin Hu wrote: > DPDK has well-defined barriers, such as CIO barriers and IO barriers. > > X86, as a strong ordering model, implements the barriers as compiler > barriers, but on aarch64, as a weak memory ordering model, has fine > grained barriers. Using correct while as r

[dpdk-dev] [PATCH v2 0/5] fix and optimize barriers usage with some PMDs

2019-09-16 Thread Gavin Hu
DPDK has well-defined barriers, such as CIO barriers and IO barriers. X86, as a strong ordering model, implements the barriers as compiler barriers, but on aarch64, as a weak memory ordering model, has fine grained barriers. Using correct while as relaxed as possible barriers makes a perf differen