From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Subject: Re: About pmu cycle counter usage in armv8
Date: Mon, 11 Dec 2017 12:02:00 +0530
Message-ID: <20171211063159.GA18145@jerin>
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To: Jia He <hejianet@gmail.com>
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-----Original Message-----
> Date: Mon, 11 Dec 2017 14:23:54 +0800
> From: Jia He <hejianet@gmail.com>
> To: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> Cc: "dev@dpdk.org" <dev@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.