For further reference as to what Seiko_Hejiro was speaking of to here is a basic example using the A minor scale in a similar pattern.


x3 x3 x3 x3
|-------------|-------------|--------------|--------------|
|o-----------o|o-----------o|o------------o|-------------o|
|-------------|-------------|--------------|--------------|
|o-----------o|o-----------o|o------------o|-------5-----o|
|-------5-----|-----5-7-5---|---5-7-8-7-5--|-5-7-8---8-7--|
|-5-7-8---8-7-|-7-8-------8-|-8------------|--------------|

(sorry about the poor quality / spacing of this.. Just copy the above and paste it into Notepad and it'll be much easier to read)

etc all the way up through the A minor scale...

Most basic speed and control exercises are based around this typical structure, it works quite well too. You can mix it up as you get more advanced with string skipping or big stretching. The key is maintaining clarity and control at all times. Practice with a metronome!