Cannot open large size JSON

[s7tya]

I'm trying to import Trace Event Format JSON that has 300,000+ records, however it fails because of #438.

Here's the link of JSON

Related: #386

[trainee202]

+1

This is getting problematic, even if we perf data it behaves same way, above a certain data-size it do not work (my threshold when testing was <=2GB)

[7thFox]

+1 my file was ~450MB. Even just getting a message saying it's too big (instead of "invalid format") would be nice so I know it's not a bug in my profiler code.