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Re: [linuxtools-dev] oprofile plug-in ignores user-specified 'count'
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Hey Maynard,
First, it would be good that you have Egit plug-in on your Eclipse, so
install it from http://www.eclipse.org/egit/download/
(help->install new software, add the url from inside this webpage i
pasted and get the packages)
Then clone linuxtools master repository:
http://wiki.eclipse.org/Linux_Tools_Project/Getting_Involved#Getting_Code
After it, import (file -> import -> git -> projects from git (well
you can add the linuxtools git url there or your local tree if you
already cloned it)
Then select the packages from Oprofile plugin (they will be inserted in
your workspace)
After they are imported, right click the project and go to run as ->
eclipse application (or hit ctrl+f11).
Please test it in the new eclipse instance that went open.
Im not sure if this is the best way to do it :)
Kind regards,
Rodrigo.
On Fri, 31 Jan 2014 12:29:55 -0600
Maynard Johnson <maynardj@xxxxxxxxxx> wrote:
> On 01/31/2014 12:14 PM, Rodrigo Fraxino Araujo wrote:
> > Hi Maynard,
> >
> > I just reviewed a fix for that bug on
> > https://git.eclipse.org/r/#/c/21405/ . If you could confirm it fixes
> > the bug Ill close the bugzilla. Thanks.
> Thanks Rodrigo. Since I'm not an Eclipse developer, I don't know how
> I can install this fix on my system. Can you give me explicit
> instructions? Thanks!
>
> -Maynard
> >
> > Kind regards,
> > Rodrigo.
> >
> > On Fri, 31 Jan 2014 08:01:49 -0600
> > Maynard Johnson <maynardj@xxxxxxxxxx> wrote:
> >
> >> On 01/30/2014 04:03 PM, Jeff Johnston wrote:
> >>> Confirmed. Please open a bug. The code is getting the minCount
> >>> when creating the event parameter for operf so that is why you are
> >>> seeing 6000 each time.
> >>
> >> I opened a bug ...
> >> https://bugs.eclipse.org/bugs/show_bug.cgi?id=427121.
> >>
> >> -Maynard
> >>>
> >>> -- Jeff J.
> >>>
> >>> ----- Original Message -----
> >>>> From: "Maynard Johnson" <maynardj@xxxxxxxxxx>
> >>>> To: "Linux Tools developer discussions"
> >>>> <linuxtools-dev@xxxxxxxxxxx> Sent: Thursday, January 30, 2014
> >>>> 3:26:42 PM Subject: [linuxtools-dev] oprofile plug-in ignores
> >>>> user-specified 'count'
> >>>>
> >>>> Hi, all,
> >>>> I'm using the oprofile plug-in on Kepler. The version of the
> >>>> OProfile Core Plug-in is 2.0.0.201309171939. The plug-in appears
> >>>> to ignore a user-specified count value. Here are the steps to
> >>>> reproduce:
> >>>>
> >>>> 1. Create a simple C project to be profiled.
> >>>> 2. Right click on the project, select "Profiling Tools |
> >>>> Profiling Tools Configurations".
> >>>> 3. Create a new "Profile with OProfile" configuration.
> >>>> 4. Under the "Global" tab, select 'operf'.
> >>>> 5. Under the "Events" tab, uncheck the "Use default event" box,
> >>>> check the "Enabled" box in the Ctr 0 tab, select an event (like
> >>>> CPU_CLK_UNHALTED for Intel systems), and then edit the "Count"
> >>>> field, specifying something like "500000".
> >>>> 6. Click the "Apply" and "Profile" buttons.
> >>>>
> >>>> During the profiling session, I see a bunch of messages like
> >>>> below spewing to every open terminal window:
> >>>>
> >>>> kernel:Dazed and confused, but trying to continue
> >>>>
> >>>> This may or may not happen when trying to reproduce the problem,
> >>>> depending on kernel version and processor model. My system is
> >>>> RHEL 6.4/Core 2 Duo.
> >>>>
> >>>> I then went into my Eclipse workspace project directory and found
> >>>> the "oprofile_data" directory where the profile data was stored.
> >>>> Running 'opreport' from that directory showed the profile data
> >>>> below [1]. Note the 'count 6000' at the end of the line where
> >>>> the event name and description are given. This value of 6000 is
> >>>> the minimum value for the CPU_CLK_UNHALTED event. So the
> >>>> oprofile plug-in ignored the '500000' value that I specified for
> >>>> the 'count' value. I tried other events and got the same result
> >>>> -- i.e., the minimum value was always used for profiling, no
> >>>> matter what I specified in the 'count' field. BTW, you can see
> >>>> the minimum value for each event in the output of ophelp.
> >>>>
> >>>> Is this a bug or am I misunderstanding something about how to
> >>>> specify the profile configuration?
> >>>>
> >>>> Thanks!
> >>>>
> >>>> -Maynard
> >>>>
> >>>> ----------------------------------------------
> >>>> [1]
> >>>> [maynard@oc3431575272 memcpyt]$ opreport
> >>>> Using /home/maynard/workspace/memcpyt/oprofile_data/samples/ for
> >>>> samples directory.
> >>>>
> >>>> WARNING! Some of the events were throttled. Throttling occurs
> >>>> when the initial sample rate is too high, causing an excessive
> >>>> number of interrupts. Decrease the sampling frequency. Check
> >>>> the
> >>>> directory /home/maynard/workspace/memcpyt/oprofile_data/samples/current/stats/throttled
> >>>> for the throttled event names.
> >>>>
> >>>> CPU: Core 2, speed 2534 MHz (estimated)
> >>>> Counted CPU_CLK_UNHALTED events (Clock cycles when not halted)
> >>>> with a unit mask of 0x00 (Unhalted core cycles) count 6000
> >>>> CPU_CLK_UNHALT...|
> >>>> samples| %|
> >>>> ------------------
> >>>> 2279376 100.000 memcpyt
> >>>> CPU_CLK_UNHALT...|
> >>>> samples| %|
> >>>> ------------------
> >>>> 2089905 91.6876 libc-2.12.so
> >>>> 147437 6.4683 memcpyt
> >>>> 41995 1.8424 no-vmlinux
> >>>> 39 0.0017 ld-2.12.so
> >>>>
> >>>> _______________________________________________
> >>>> linuxtools-dev mailing list
> >>>> linuxtools-dev@xxxxxxxxxxx
> >>>> https://dev.eclipse.org/mailman/listinfo/linuxtools-dev
> >>>>
> >>> _______________________________________________
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> >>> linuxtools-dev@xxxxxxxxxxx
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> >>>
> >>
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> >>
> >
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>
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