Add nproc tip
Change-Id: I2639ce8fe1c4900d665e629ef03506a0585a7523
diff --git a/docs/BlissRoms/build-guide.md b/docs/BlissRoms/build-guide.md
index 2d85860..97aca0a 100644
--- a/docs/BlissRoms/build-guide.md
+++ b/docs/BlissRoms/build-guide.md
@@ -108,6 +108,15 @@
`-c` is for pulling in only the current branch, instead of the entire history. This is useful if you need the downloads fast and don’t want the entire history to be downloaded. This is used by default unless specified otherwise.
+#### I still don't know how much CPU threads I have. How do I check?
+
+Run `nproc`. The output should be something like this:
+
+ rwaterspf1@test:~$ nproc
+ 24
+
+This means that there are 24 threads in your machine.
+
`repo` will start downloading all the code. That’s going to be slow, even on a fiber network. Expect downloads to take more than a couple hours.
### Build