[dpdk-dev] About pmu cycle counter usage in armv8

Jerin Jacob jerin.jacob at caviumnetworks.com
Mon Dec 11 07:32:00 CET 2017


-----Original Message-----
> Date: Mon, 11 Dec 2017 14:23:54 +0800
> From: Jia He <hejianet at gmail.com>
> To: Jerin Jacob <jerin.jacob at caviumnetworks.com>
> Cc: "dev at dpdk.org" <dev at dpdk.org>
> Subject: Re: About pmu cycle counter usage in armv8
> User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101
>  Thunderbird/52.5.0
> 
> Hi Jerin

Hi Jia.

> 
> Ok
> 
> And I wonder why you haven't met such problem (all rd_tsc() is 0)in your
> test platform?
> 
> Did you use an old kernel (older than v4.5-rc1)?

I am using 4.9 kernel base.



More information about the dev mailing list