* update doc
Co-authored-by: Noah Falk <noahfalk@users.noreply.github.com>
1. Have two shell windows available - one for controlling tracing, referred to as **[Trace]**, and one for running the application, referred to as **[App]**.
2. **[App]** Setup the application shell - this enables tracing configuration inside of CoreCLR.
- > ```bash
+ > ```bash
> export COMPlus_PerfMapEnabled=1
> export COMPlus_EnableEventLog=1
> ```
+ Note:
+ COMPlus_PerfMapEnabled will cause the .NET runtime to write a file containing symbolic information for managed code to the disk. Depending on the performance of your disk and the amount of managed code in the application this could have a significant performance overhead.
+
3. **[Trace]** Start collection.
> ```bash