Khaparde (ajit.khapa...@broadcom.com)
> ; ruigeng.w...@arm.com; Dharmik Thakkar
> ; Phil Yang ; dpdk stable
>
> Subject: Re: [dpdk-dev] [PATCH] eal: generic counter based loop for CPU freq
> calculation
>
> On Tue, Jun 9, 2020 at 3:04 AM Honnappa Nagarahalli
> wrote:
>
>Subject: [dpdk-dev] [PATCH] eal: generic counter based loop for CPU
>freq calculation
>
>get_tsc_freq uses 'nanosleep' system call to calculate the CPU
>frequency. However, 'nanosleep' results in the process getting
>un-scheduled. The kernel saves and rest
On Tue, Jun 9, 2020 at 3:04 AM Honnappa Nagarahalli
wrote:
>
> get_tsc_freq uses 'nanosleep' system call to calculate the CPU
> frequency. However, 'nanosleep' results in the process getting
> un-scheduled. The kernel saves and restores the PMU state. This
> ensures that the PMU cycles are not cou
get_tsc_freq uses 'nanosleep' system call to calculate the CPU
frequency. However, 'nanosleep' results in the process getting
un-scheduled. The kernel saves and restores the PMU state. This
ensures that the PMU cycles are not counted towards a sleeping
process. When RTE_ARM_EAL_RDTSC_USE_PMU is def
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