From: Jerin Jacob <jerinjacobk@gmail.com>
To: Linhaifeng <haifeng.lin@huawei.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
"thomas@monjalon.net" <thomas@monjalon.net>,
"Lilijun (Jerry)" <jerry.lilijun@huawei.com>,
chenchanghu <chenchanghu@huawei.com>,
xudingke <xudingke@huawei.com>
Subject: Re: [dpdk-dev] [PATCH] cycles: add isb before read cntvct_el0
Date: Mon, 9 Mar 2020 21:13:01 +0530 [thread overview]
Message-ID: <CALBAE1MUZ4kXf04yGOxi534KP6N14Yk4OQ-Ww+UMpH6f4doAtA@mail.gmail.com> (raw)
In-Reply-To: <4099DE2E54AFAD489356C6C9161D53339729EB7E@DGGEML502-MBX.china.huawei.com>
On Mon, Mar 9, 2020 at 2:43 PM Linhaifeng <haifeng.lin@huawei.com> wrote:
>
> We nead isb rather than dsb to sync system counter to cntvct_el0.
# Currently rte_rdtsc() does not have dsb. Right? or any barriers.
# Why do you need it? If it regarding, getting accurate value then use
rte_rdtsc_precise().
>
> Signed-off-by: Haifeng Lin <haifeng.lin@huawei.com>
next prev parent reply other threads:[~2020-03-09 15:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-09 9:13 Linhaifeng
2020-03-09 9:19 ` David Marchand
2020-03-10 2:51 ` [dpdk-dev] 答复: " Linhaifeng
2020-03-09 15:43 ` Jerin Jacob [this message]
2020-03-10 2:39 ` Linhaifeng
2020-03-10 7:53 ` [dpdk-dev] " Jerin Jacob
2020-03-09 9:22 Linhaifeng
2020-03-10 7:11 ` Gavin Hu
2020-03-10 7:22 ` Linhaifeng
2020-03-10 7:50 ` Jerin Jacob
2020-03-09 10:58 Linhaifeng
2020-03-09 11:05 Linhaifeng
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