AsyncGetCallTrace java profiling

[Alexandre De Champeaux]

Hi,

I was able to reproduce the bug running java 8 (build b103, and so hotspot
build 25.0-b45). So I would like to update the bug report to java 8. I
don't have access to it though. Should I post a new one?


On Tue, Aug 13, 2013 at 2:13 PM, Alexandre De Champeaux
<adc at quartetfs.com>wrote:

> Ok thanks. I just posted a bug report to bugs.sun.com describing the
> issue (id 9005974).
>
>
> On Tue, Aug 13, 2013 at 1:00 PM, Alan Bateman <Alan.Bateman at oracle.com>wrote:
>
>>  On 13/08/2013 09:11, Alexandre De Champeaux wrote:
>>
>> Hi all,
>>
>>  I posted this message a few days ago in the discuss mailing list. This
>> one seems way more accurate though, so i am posting it again.
>>
>>  Following his blog post (
>> http://jeremymanson.blogspot.fr/2013/07/lightweight-asynchronous-sampling.html),
>> I have been trying to use the code Jeremy Manson proposes to use the
>> AsyncGetCallTrace function.
>> Although it works smoothly on small examples, I see some impossible
>> stacktraces on real world projects, with complex interface structures. I
>> have posted a bug report that reproduces it and gives more details here :
>> https://code.google.com/p/lightweight-java-profiler/issues/detail?id=1
>>
>>  I am trying to estimate if those stacktraces are sparse (seems to be
>> so), and so if a profiler that uses this feature will be reliable.
>>
>>  Any known bugs / limitations of the AsyncGetCallTrace function?
>> This function being undocumented, in what extent does it stays up to date?
>>
>>  Thanks for your answers
>>
>>  Alex
>>
>> When you say you've posted a bug report, does this mean to bugs.sun.com?
>> While not technically supported, it is known to be used by some products so
>> if there is an issue (and I remember this had a long bug tail originally)
>> then it would be good to track it.
>>
>> -Alan.
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.openjdk.java.net/pipermail/serviceability-dev/attachments/20130826/2c513efc/attachment.html