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Re: [linuxtools-dev] oprofile plug-in ignores user-specified 'count'
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On 01/31/2014 01:54 PM, Jeff Johnston wrote:
> Rodrigo, I tried it out locally and it works just fine, thanks. I verified that
> the count shows up if I run opreport directly in the workspace.
>
> Maynard, you might as well just wait until tomorrow or Monday until
> our nightly build occurs. I'll add the fix to our Kepler branch so the
> nightly build will pick it up and put it the result in: http://www.eclipse.org/downloads/linuxtools/updates-nightly-kepler
> which you can add as an update site (Help->Install New Software... -> Add button).
When I tried to add this update site this morning, I got the following message:
Could not find http://www.eclipse.org/downloads/linuxtools/updates-nightly-kepler
I think "http://download.eclipse.org/linuxtools/updates-nightly"; is the correct update site, so I tried that, and the update did work. But after Eclipse restarted, I no longer have a "Profiling Tools". I pinged my colleague, Rodrigo, on the side, and he thinks it's probably because this oprofile plug-in update has Java7 dependencies, and I'm on Java6. He updated his oprofile plug-in and said the 'count' field now works properly, so that's good enough for me.
Thanks.
-Maynard
> From there, choose to install/update the OProfile plug-in and you should have the fix.
>
> -- Jeff J.
>
>
> ----- Original Message -----
>> From: "Rodrigo Fraxino Araujo" <rfaraujo@xxxxxxxxxxxxxxxxxx>
>> To: linuxtools-dev@xxxxxxxxxxx
>> Sent: Friday, January 31, 2014 1:52:41 PM
>> Subject: Re: [linuxtools-dev] oprofile plug-in ignores user-specified 'count'
>>
>> 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
>>>>>>>
>>>>>>> _______________________________________________
