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From: Jan Kiszka <jan.kiszka@siemens.com>
To: 孙世龙 <sunshilong369@gmail.com>, xenomai <xenomai@xenomai.org>
Subject: Re: Which way could guarantee more precise delay?'rt_task_sleep' or 'rt_task_wait_period'?
Date: Mon, 18 May 2020 11:02:57 +0200	[thread overview]
Message-ID: <8c5646e8-8dd1-13a3-85a6-29595857b7cd@siemens.com> (raw)
In-Reply-To: <CAAvDm6YKsKHNZ8+wTmYNTE6_67MQ8MhxvM9Z-_ockETQb5GHeA@mail.gmail.com>

On 17.05.20 07:51, 孙世龙 via Xenomai wrote:
> Hi,
>         I need to run a simpe routline periodically.For example,
> the routline needs to run every 1ms.
> 
>         Which way could guarantee more precise delay?'rt_task_sleep'  or
> 'rt_task_wait_period'?
> 
>         If there is a better solution,please let me know.
> 
>         Thank you for attention to this matter.
>         Look forward to hearing from you.
> 

Both will give you same accuracy as both are built on the same 
mechanisms in the core - provided you use rt_task_sleep with absolute 
timeouts.

Jan

-- 
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux


      reply	other threads:[~2020-05-18  9:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-17  5:51 Which way could guarantee more precise delay?'rt_task_sleep' or 'rt_task_wait_period'? 孙世龙
2020-05-18  9:02 ` Jan Kiszka [this message]

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