From: "Ahmed S. Darwish" <a.darwish@linutronix.de>
To: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Cc: jkacur@redhat.com, binh1.tranhai@toshiba.co.jp,
Daniel Sangorrin <daniel.sangorrin@toshiba.co.jp>,
dwagner@suse.de, linux-rt-users@vger.kernel.org
Subject: Re: Some issues running rteval on arm64, arm and i386
Date: Fri, 22 Jan 2021 07:26:41 +0100 [thread overview]
Message-ID: <YApwIRJdMCXcMVbU@lx-t490> (raw)
In-Reply-To: <877doa1uwx.fsf@kokedama.swc.toshiba.co.jp>
On Mon, Jan 18, 2021 at 06:00:46PM +0900, Punit Agrawal wrote:
>
> We ran into a few issues when trying to run rteval on arm64, arm and
> i386.
>
> A few of the assumptions in rteval don't hold true on these systems.
>
For some embedded devices, it can be tough to use rteval with it. In
general, it requires, *on the target*:
1. a full development toolchain (GCC, make, flex, bison, etc.)
2. a full kernel source tree
3. a full Python environment
You can use a combination of stress-ng and cyclictest to properly
evaluate your preempt_rt system latencies. Just make sure to exclude the
stress-ng stressors which allocate real-time threads, which can (and do)
conflict with the cyclictest ones.
Kind regards,
--
Ahmed S. Darwish
next prev parent reply other threads:[~2021-01-22 6:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 9:00 Some issues running rteval on arm64, arm and i386 Punit Agrawal
2021-01-22 6:26 ` Ahmed S. Darwish [this message]
2021-01-22 23:31 ` John Kacur
2021-01-26 1:40 ` Punit Agrawal
2021-01-22 23:27 ` John Kacur
2021-01-26 1:04 ` Punit Agrawal
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