Update profiling_with_tracy.md (#8233)
Add note on old zstd on Ubuntu 18.04
diff --git a/docs/developers/developing_iree/profiling_with_tracy.md b/docs/developers/developing_iree/profiling_with_tracy.md
index 5b3e27e..cff3897 100644
--- a/docs/developers/developing_iree/profiling_with_tracy.md
+++ b/docs/developers/developing_iree/profiling_with_tracy.md
@@ -33,6 +33,7 @@
```shell
sudo apt install libcapstone-dev libtbb-dev libzstd-dev
```
+The zstd version on Ubuntu 18.04 is old. You will need to install it from source from https://github.com/facebook/zstd.git
### Mac
```shell
