RFR: 6364: Improvements to the Thread Graph

[Brice Dutheil]

On Wed, 29 Apr 2020 14:00:43 GMT, Alex Macdonald <aptmac at openjdk.org> wrote:

>> Hi @aptmac - could you update this PR, please? Thinking of taking a closer look at it during the jmc dev hangout
>> tonight. :)
>
> Hi @thegreystone, I rebased the branch yesterday to be on top of master, and included a new commit based on the
> feedback that makes the dropdown lane filter act like the Edit Lanes Dialog (screenshot below). Does the outdated tag
> automatically remove itself what some criteria is met?   Edit: I also see that the checks failed, it looks like there's
> something wrong with the builds at the moment, I've been seeing similar errors on my travis builds as well
> ![2020-04-27-171139_1177x829_scrot](https://user-images.githubusercontent.com/10425301/80604806-301c1000-8a00-11ea-82ce-88e55cc5d744.png)

Hi just for the record how this is handled when there's a lot of threads to deal with.

![image](https://user-images.githubusercontent.com/803621/84946230-a8da4700-b0e8-11ea-9058-54a51490fd5a.png)

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PR: https://git.openjdk.java.net/jmc/pull/27