Stack Profiler

Kirk Pepperdine kirk at kodewerk.com
Wed Jul 2 18:07:49 UTC 2014


Hi Aleksey,

Ok, then I need to get a build so I can test it out.

— Kirk

On Jul 2, 2014, at 8:02 PM, Aleksey Shipilev <aleksey.shipilev at oracle.com> wrote:

> On 07/02/2014 09:58 PM, Kirk Pepperdine wrote:
>> The thing with prof is that it’s really amazing that this “brain
>> dead” profiler beats all others in being consistently correct in
>> finding meaningful bottlenecks to correct.
> 
> It amazes me as well.
> 
>> In fact I now trust it so
>> much that I’ll use it as a control when evaluating other profilers on
>> different problems. I can understand the desire to pull BLOCKED or
>> WAITING threads but IME it’s these types of problems that other
>> profilers miss. In addition the filter sets and profiling points
>> *often* hide the bottleneck from the end users.
> 
> AFAIU, Sergey's patch does not filter any threads, but merely regroups
> the output to grok the RUNNABLE-s easier if you choose to ignore
> non-RUNNABLE-s. We will keep it that way.
> 
> -Aleksey.
> 



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