From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Ran Shalit <ranshalit@gmail.com>
Cc: linux-rt-users@vger.kernel.org
Subject: Re: Understanding cyclictest result
Date: Fri, 3 Feb 2017 16:27:19 +0100 [thread overview]
Message-ID: <20170203152719.ldomq7rvqtdyoui3@linutronix.de> (raw)
In-Reply-To: <CAJ2oMh+e-pH53KOckXcKB-FdRxnrdtTxprGvEifvUeA1=dG6gw@mail.gmail.com>
On 2017-02-03 10:13:15 [+0200], Ran Shalit wrote:
> Hello,
Hello,
…
> and got max value of 180usec.
>
> On comparing my results to resuls examples given in
> https://rt.wiki.kernel.org/index.php/Cyclictest
> it seems like a very large number.
> I know it depends on hardware (I am using Atom, one core only.), yet
> becuase I'm not too experienced with it, I am not sure if my real
> problem is HW or doing wrong testing/RTpatch.
> I also see that it is much better then results before applying RT
> patch (3000usec)
So Carsten has
- Atom Z530 @1600 MHz with 382us [0]
- Atom N2800 @1860 MHz with 43us [1]
[0] https://www.osadl.org/Profile-of-system-in-rack-1-slot-8.qa-profile-r1s8.0.html#hwlats
[1] https://www.osadl.org/Profile-of-system-in-rack-c-slot-4.qa-profile-rcs4.0.html#hwlats
> Best Regards,
> Ran
Sebastian
prev parent reply other threads:[~2017-02-03 15:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-03 8:13 Understanding cyclictest result Ran Shalit
2017-02-03 15:27 ` Sebastian Andrzej Siewior [this message]
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