! for some reason some template names are not found

[mihaisebea]

Unfortunately is not easy to create a simple reproducible case. It seems that SpecializationID is 0. I will try to look more into this.

[MetanoKid]

Hi Mihai, thank you for another fix!

I guess the PR can be approved, but I'd like to have some more info on the issue before merging it. Can you please answer these questions?

• When you collected the trace, which MSVC version was the project compiled with?
• Can you check whether those Unknown templates timeElapsed under the default time to be ignored in the BuildTimeline.json report? I think it's 10ms right now. If it is, it means we'd have this same issue in the timeline report if we passed the timeline_ignore_templates_under argument and it might mean it's a bug in the compiler. Otherwise that'd be an issue in this report.

Thanks 👍

[mihaisebea]

Hi @MetanoKid I used Visual Studio 2019 16.7.2 Seems the default is indeed 10ms but I have templates that take well over 500ms.

As far as i'm debugging this, in this function:

void TemplateInstantiationsAnalyzer::OnTemplateInstantiation(const CppBI::Activities::TemplateInstantiation& templateInstantiation)
{

there are plenty instantiations that have PrimaryTemplateSymbolKey and SpecializationSymbolKey 0 (zero) And this is what the event looks like.