Re: Where can I get the latest cyclictest or the version 0.72

Re: Where can I get the latest cyclictest or the version 0.72

[Steven Rostedt]

On Mon, 2011-12-05 at 21:32 +0800, Bei Guan wrote:
> Hi,
> 
> 
> I am very sorry to disturb you, but I find the mails I delivered
> to linux-rt-users mailing list are all failed. So maybe you can help
> me out of my question or forward my question to a correct man. Thank
> you very much.
> 
> 
> Where can I get the latest cyclictest or the version 0.72? I try the
> following links, but it seems not available now.
> http://www.kernel.org/pub/linux//kernel/people/clrkwllms/rt-tests/
> 


Clark,

Can you answer this.

Thanks,

-- Steve

Re: Where can I get the latest cyclictest or the version 0.72

[Clark Williams]

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On Mon, 05 Dec 2011 09:42:53 -0500
Steven Rostedt <rostedt@goodmis.org> wrote:

> On Mon, 2011-12-05 at 21:32 +0800, Bei Guan wrote:
> > Hi,
> > 
> > 
> > I am very sorry to disturb you, but I find the mails I delivered
> > to linux-rt-users mailing list are all failed. So maybe you can help
> > me out of my question or forward my question to a correct man. Thank
> > you very much.
> > 
> > 
> > Where can I get the latest cyclictest or the version 0.72? I try the
> > following links, but it seems not available now.
> > http://www.kernel.org/pub/linux//kernel/people/clrkwllms/rt-tests/
> > 
> 
> 
> Clark,
> 
> Can you answer this.
> 
> Thanks,
> 
> -- Steve
> 
> 
> 

Currently (until I get my kernel.org account set back up) I'm keeping
it on github:

	git://github.com/clrkwllms/rt-tests.git

No tarballs available, just the git tree. 

Hopefully I'll get my k.o. account back up this week and will be back
to the old spot.

Clark

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Re: Where can I get the latest cyclictest or the version 0.72

[Bei Guan]

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Thank all of you very much.

Hi Clark,

How to install this new version? Could you give me
some instructions? Thanks.


Best Wishes,
Bei Guan




2011/12/5 Clark Williams <williams@redhat.com>

> On Mon, 05 Dec 2011 09:42:53 -0500
> Steven Rostedt <rostedt@goodmis.org> wrote:
>
> > On Mon, 2011-12-05 at 21:32 +0800, Bei Guan wrote:
> > > Hi,
> > >
> > >
> > > I am very sorry to disturb you, but I find the mails I delivered
> > > to linux-rt-users mailing list are all failed. So maybe you can help
> > > me out of my question or forward my question to a correct man. Thank
> > > you very much.
> > >
> > >
> > > Where can I get the latest cyclictest or the version 0.72? I try the
> > > following links, but it seems not available now.
> > > http://www.kernel.org/pub/linux//kernel/people/clrkwllms/rt-tests/
> > >
> >
> >
> > Clark,
> >
> > Can you answer this.
> >
> > Thanks,
> >
> > -- Steve
> >
> >
> >
>
> Currently (until I get my kernel.org account set back up) I'm keeping
> it on github:
>
>        git://github.com/clrkwllms/rt-tests.git
>
> No tarballs available, just the git tree.
>
> Hopefully I'll get my k.o. account back up this week and will be back
> to the old spot.
>
> Clark
>



-- 
Best Regards,
Bei Guan

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Re: Where can I get the latest cyclictest or the version 0.72

[Clark Williams]

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Bei, 

That's a git tree. You'll need to compile the images from there. 

What distro are you using? Debian delivers rt-tests as a .deb, so you
could just apt-get it from there. I don't think Fedora delivers
rt-tests as an RPM.

Clark

On Mon, 5 Dec 2011 23:30:44 +0800
Bei Guan <gbtju85@gmail.com> wrote:

> Thank all of you very much.
> 
> Hi Clark,
> 
> How to install this new version? Could you give me
> some instructions? Thanks.
> 
> 
> Best Wishes,
> Bei Guan
> 
> 
> 
> 
> 2011/12/5 Clark Williams <williams@redhat.com>
> 
> > On Mon, 05 Dec 2011 09:42:53 -0500
> > Steven Rostedt <rostedt@goodmis.org> wrote:
> >
> > > On Mon, 2011-12-05 at 21:32 +0800, Bei Guan wrote:
> > > > Hi,
> > > >
> > > >
> > > > I am very sorry to disturb you, but I find the mails I delivered
> > > > to linux-rt-users mailing list are all failed. So maybe you can help
> > > > me out of my question or forward my question to a correct man. Thank
> > > > you very much.
> > > >
> > > >
> > > > Where can I get the latest cyclictest or the version 0.72? I try the
> > > > following links, but it seems not available now.
> > > > http://www.kernel.org/pub/linux//kernel/people/clrkwllms/rt-tests/
> > > >
> > >
> > >
> > > Clark,
> > >
> > > Can you answer this.
> > >
> > > Thanks,
> > >
> > > -- Steve
> > >
> > >
> > >
> >
> > Currently (until I get my kernel.org account set back up) I'm keeping
> > it on github:
> >
> >        git://github.com/clrkwllms/rt-tests.git
> >
> > No tarballs available, just the git tree.
> >
> > Hopefully I'll get my k.o. account back up this week and will be back
> > to the old spot.
> >
> > Clark
> >
> 
> 
> 
> -- 
> Best Regards,
> Bei Guan

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Re: Where can I get the latest cyclictest or the version 0.72

[Bei Guan]

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2011/12/5 Clark Williams <williams@redhat.com>

> Bei,
>
> That's a git tree. You'll need to compile the images from there.
>
> What distro are you using? Debian delivers rt-tests as a .deb, so you
> could just apt-get it from there. I don't think Fedora delivers
> rt-tests as an RPM.
>
I have two distros, Fedora and Ubuntu. Under the Fedora, I just use "make
install" and it seems to work well. Now I can use the command cyclictest in
Fedora.

But, under the Ubuntu, you mean I can use apt-get. Is the following right?
apt-get install github.com/clrkwllms/rt-tests.git
 (But it doesn't work. Please correct me.)


Another question, how to get the histogram graphic using the cyclictest. I
use the following command but I cannot get it.

[root@localhost ~]# cyclictest -h -s -p 80 -n -i 10000 -l 1000
WARNING: High resolution timers not available
policy: fifo: loadavg: 0.13 0.10 0.09 4/229 5283

T: 0 ( 5283) P:80 I:10000 C:   1000 Min:  14420 Act:14496 Avg:14712 Max:
24567
WARNING: unable to open events/enable


Thanks,
Bei Guan





> Clark
>
> On Mon, 5 Dec 2011 23:30:44 +0800
> Bei Guan <gbtju85@gmail.com> wrote:
>
> > Thank all of you very much.
> >
> > Hi Clark,
> >
> > How to install this new version? Could you give me
> > some instructions? Thanks.
> >
> >
> > Best Wishes,
> > Bei Guan
> >
> >
> >
> >
> > 2011/12/5 Clark Williams <williams@redhat.com>
> >
> > > On Mon, 05 Dec 2011 09:42:53 -0500
> > > Steven Rostedt <rostedt@goodmis.org> wrote:
> > >
> > > > On Mon, 2011-12-05 at 21:32 +0800, Bei Guan wrote:
> > > > > Hi,
> > > > >
> > > > >
> > > > > I am very sorry to disturb you, but I find the mails I delivered
> > > > > to linux-rt-users mailing list are all failed. So maybe you can
> help
> > > > > me out of my question or forward my question to a correct man.
> Thank
> > > > > you very much.
> > > > >
> > > > >
> > > > > Where can I get the latest cyclictest or the version 0.72? I try
> the
> > > > > following links, but it seems not available now.
> > > > > http://www.kernel.org/pub/linux//kernel/people/clrkwllms/rt-tests/
> > > > >
> > > >
> > > >
> > > > Clark,
> > > >
> > > > Can you answer this.
> > > >
> > > > Thanks,
> > > >
> > > > -- Steve
> > > >
> > > >
> > > >
> > >
> > > Currently (until I get my kernel.org account set back up) I'm keeping
> > > it on github:
> > >
> > >        git://github.com/clrkwllms/rt-tests.git
> > >
> > > No tarballs available, just the git tree.
> > >
> > > Hopefully I'll get my k.o. account back up this week and will be back
> > > to the old spot.
> > >
> > > Clark
> > >
> >
> >
> >
> > --
> > Best Regards,
> > Bei Guan
>



-- 
Best Regards,
Bei Guan

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Re: Where can I get the latest cyclictest or the version 0.72

[Clark Williams]

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On Mon, 5 Dec 2011 21:05:32 -0500
Bei Guan <gbtju85@gmail.com> wrote:

> 2011/12/5 Clark Williams <williams@redhat.com>
> 
> > Bei,
> >
> > That's a git tree. You'll need to compile the images from there.
> >
> > What distro are you using? Debian delivers rt-tests as a .deb, so you
> > could just apt-get it from there. I don't think Fedora delivers
> > rt-tests as an RPM.
> >
> I have two distros, Fedora and Ubuntu. Under the Fedora, I just use "make
> install" and it seems to work well. Now I can use the command cyclictest in
> Fedora.
> 
> But, under the Ubuntu, you mean I can use apt-get. Is the following right?
> apt-get install github.com/clrkwllms/rt-tests.git
>  (But it doesn't work. Please correct me.)

No you don't need to specify the git repository; there should be a
package already set up in the stable debian: apt-get install rt-tests

> 
> 
> Another question, how to get the histogram graphic using the cyclictest. I
> use the following command but I cannot get it.
> 
> [root@localhost ~]# cyclictest -h -s -p 80 -n -i 10000 -l 1000
> WARNING: High resolution timers not available
> policy: fifo: loadavg: 0.13 0.10 0.09 4/229 5283
> 
> T: 0 ( 5283) P:80 I:10000 C:   1000 Min:  14420 Act:14496 Avg:14712 Max:
> 24567
> WARNING: unable to open events/enable
> 

The histogram option (-h) takes an argument, which is the max value
to record in microseconds. So, -h100 would generate a 100 element
histogram (1 microsecond per line). Since it doesn't look like you're
running on an RT kernel (no hrtimers available), you'll have a wide
variance in response times, so you'll need a big histogram range to
catch everything. 

Try this:

# cyclictest -t -p80 -m -i 10000 -l 1000 -h 10000

Then be ready for 10000 lines of output when you control-C out of
cyclictest. 

Clark



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Re: Where can I get the latest cyclictest or the version 0.72

[Steven Rostedt]

On Mon, 2011-12-05 at 21:05 -0500, Bei Guan wrote:
> apt-get install github.com/clrkwllms/rt-tests.git

Um, you can't use apt-get to install a git repo.

You want:

apt-get install rt-tests

-- Steve

Re: Where can I get the latest cyclictest or the version 0.72

[Bei Guan]

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OK. It works well in my two distros now. Thank you all very much:)


Best Wishes,
Bei Guan


2011/12/7 Clark Williams <williams@redhat.com>

> On Mon, 5 Dec 2011 21:05:32 -0500
> Bei Guan <gbtju85@gmail.com> wrote:
>
> > 2011/12/5 Clark Williams <williams@redhat.com>
> >
> > > Bei,
> > >
> > > That's a git tree. You'll need to compile the images from there.
> > >
> > > What distro are you using? Debian delivers rt-tests as a .deb, so you
> > > could just apt-get it from there. I don't think Fedora delivers
> > > rt-tests as an RPM.
> > >
> > I have two distros, Fedora and Ubuntu. Under the Fedora, I just use "make
> > install" and it seems to work well. Now I can use the command cyclictest
> in
> > Fedora.
> >
> > But, under the Ubuntu, you mean I can use apt-get. Is the following
> right?
> > apt-get install github.com/clrkwllms/rt-tests.git
> >  (But it doesn't work. Please correct me.)
>
> No you don't need to specify the git repository; there should be a
> package already set up in the stable debian: apt-get install rt-tests
>
> >
> >
> > Another question, how to get the histogram graphic using the cyclictest.
> I
> > use the following command but I cannot get it.
> >
> > [root@localhost ~]# cyclictest -h -s -p 80 -n -i 10000 -l 1000
> > WARNING: High resolution timers not available
> > policy: fifo: loadavg: 0.13 0.10 0.09 4/229 5283
> >
> > T: 0 ( 5283) P:80 I:10000 C:   1000 Min:  14420 Act:14496 Avg:14712 Max:
> > 24567
> > WARNING: unable to open events/enable
> >
>
> The histogram option (-h) takes an argument, which is the max value
> to record in microseconds. So, -h100 would generate a 100 element
> histogram (1 microsecond per line). Since it doesn't look like you're
> running on an RT kernel (no hrtimers available), you'll have a wide
> variance in response times, so you'll need a big histogram range to
> catch everything.
>
> Try this:
>
> # cyclictest -t -p80 -m -i 10000 -l 1000 -h 10000
>
> Then be ready for 10000 lines of output when you control-C out of
> cyclictest.
>
> Clark
>
>
>

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