From: Jan Kiszka <jan.kiszka@siemens.com>
To: hikwlu@sina.com, xenomai <xenomai@xenomai.org>
Subject: Re: 回复：Re: 回复：Re: 回复：Re: Xenomai latency_test_not_good
Date: Mon, 9 Sep 2019 15:56:37 +0200 [thread overview]
Message-ID: <41bd3db7-0052-851d-bd05-574af5499dfb@siemens.com> (raw)
In-Reply-To: <20190909125657.AFA5016600E9@webmail.sinamail.sina.com.cn>
On 09.09.19 14:56, 鲁克文 wrote:
> Dear Jan:
>
> For the graphic thing, our system really needs graphic, it could not be removed.
> Otherwise, I saw articles that someone got very low latency also in some X86
> ubuntu-desktop version, so I wonder whether the graphic is the key factor to the
> realtime system.
Every system is different. And graphic != graphic (only framebuffer, GPU
acceleration etc.).
>
> For your second point: "Try that with a vanilla kernel on your hardware." You
> mean I can use the hardware latency detector to test my kernel?
>
The hardware latency detector tests the hardware. But this feature is not
supported by the I-pipe kernel, therefore use a vanilla one.
Jan
--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux
prev parent reply other threads:[~2019-09-09 13:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-09 12:56 回复：Re: 回复：Re: 回复：Re: Xenomai latency_test_not_good 鲁克文
2019-09-09 13:56 ` Jan Kiszka [this message]
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