Wireshark · Ethereal-dev: [Ethereal-dev] IO Stats styles - bug in drawing order

[Jason House <jhouse@xxxxxxxxx>]

I was just playing around with 0.10's version of IO Stat and noticed the 
style feature for the first time.
(see attachment for a picture of the bug)

Styles other than "line" have the capability to completely overwrite the 
other loading info...  I'll explain.  Try leaving the first entry 
without a filter and set it to "fbar".  Then use any of the other lines 
with either "impulse" or "fbar" - There will be no observable effect. 
The first entry gets drawn last and completely overwrites everything 
because it is the tallest (see _bug.jpg attachment).  A better ordering 
makes everything much clearer (see _better_order.jpg).

When I think about this, I *think* that the proper fix would be to draw 
fbar entries first, then impulse entries, and then line entries.  When 
doing passes for fbar or impulse, each value of the x axis should 
consider all y values, and render them in order from tallest to shortest.