Stack Profiler

[Aleksey Shipilev]

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.