What is “(program)” in Chrome debugger’s profiler?

Question

What is “(program)” in the function column of the Chrome debugger?

Answer 1

I believe (program) is native code, not the root of the tree.

See this thread:

https://bugs.webkit.org/show_bug.cgi?id=88446

So, more like system calls than like main().

Apparently it includes idle time. Also, some profiling of (program) is available from chrome://profiler/