- Use zooming to reveal more detailed performance issues
- Save your place with the bookmark feature and zoom back out
Open the sudoku3 ThreadScope profile created earlier
Notice the initial lack of activity at the very beginning of program execution
What's going on there?
Use the zoom in button to explore that space a bit more (Hint: you can also press +/- on the keyboard)
Notice how different the profile looks close up. What do you see? At closer inspection what looks like a moderate amount of activity is actually intense bursts using both cores, with pauses in between.
Save the point in the zoomed-in profile as a bookmark. To do so, click in the graph to move the blue cursor to a spot of your choice.
Then switch to bookmarks tab. Press the plus button to create the bookmark and click in the labels field to name it.